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A Natural History of the National Conservation Training Center Property By Dan Everson Branch of Aquatic Resources - USFWS NCTC Update February 2004 This publication is designed to introduce visitors to the plants and animals that can be found at the National Conservation Training Center (NCTC). The campus itself comprises a little over a hundred acres, leaving more than 400 acres to be explored and enjoyed by those willing to get out of the buildings and onto the trails. Natural habitats include open fields and meadows, patches of deciduous forest in various successional stages, the riparian edge of the Potomac River, springs, creeks and ponds, small wetlands, and moss-covered limestone cliffs scattered with an ever-changing kaleidoscope of native spring wildflowers. Plant and animal communities here have both a northern and southern component, with many species from both zones at the limits of their ranges. Several factors facilitate migration of species to this area. Wooded ridges extending north into Pennsylvania and south into Virginia act as migration corridors for both plants and animals, and the Potomac River and its relatively intact riparian edge form a natural migration corridor for migrant birds and other species. The towpath of the C & O Canal National Historical Park on the opposite side of the river creates a trail more than one hundred eighty miles in length allowing mammals such as bobcats, coyotes and black bears to occasionally travel through the area Please note that some plant communities are relatively rare, with only a few individuals of several species occurring here. So please do not collect flowers or other plant parts. Regional Setting NCTC is located on the eastern edge of the Ridge and Valley physiographic province, which is characterized by long ridges of resistant sedimentary rock trending NE-SW alternating with linear valleys composed of softer sedimentary rock. NCTC lies within a long trough just west of the Blue Ridge formed from the more easily eroded limestones and shales known as the Great Valley, a geologic feature that extends from New York to Alabama. The valley culturally goes by several names, but in Virginia and West Virginia it is called the Shenandoah Valley, named for the major river that flows in a northeasterly direction down the valley until it meets the Potomac River at Harpers Ferry. Technically the Shenandoah Valley should extend northward only to Harpers Ferry, about 10 miles south of NCTC, where the combined waters of the Shenandoah and Potomac Rivers travel through a gap in the Blue Ridge, but local convention extends the Shenandoah Valley a few miles north until it comes under the political jurisdiction of Maryland, where it becomes the Hagerstown Valley. The Potomac River, which forms about two miles of A Natural History of NCTC 2 NCTC’s northern boundary, cuts “across the grain” of the geologic units in this region, a hint that the river’s ancient course was established before the current landforms were created by millions of years of differential erosion. Elevations at NCTC range from about 300 feet above sea level on the north side of the property adjacent to the river, to just over 440 feet on the southern side of the property. Because the present landscape has remained above sea level since before the Age of Dinosaurs, plant and animal species have migrated here and evolved in place over a period of more than 200 million years. The last great pulse of glacial ice in the northern hemisphere left its terminal moraine about a hundred miles to the north in Pennsylvania, but the resulting cooler climate had a lasting impact on the plant communities in the region. Boreal species commonly found in Canada today dominated this area as little as 8000 years ago, about the time the first evidence of human habitation is found in this region; remnants of these post-Pleistocene plant communities can still be found in the higher elevations of West Virginia. The native mesic hardwood forest plant communities seen here today can be considered a somewhat random collection of plants that have either survived the cooler temperatures of the Ice Ages or successfully invaded the countryside in the meantime taking advantage of the gradually warming climate. The valleys of the Potomac and Shenandoah Rivers have formed natural migration corridors for southern and coastal species extending their ranges northward. The rivers have also aided in the spread of invasive exotics such as garlic mustard, which was relatively rare 30 years ago but is widespread throughout the region today. In the last 250 years the influx of a European culture and its associated plants has had a very strong impact on the species composition of the herbaceous and shrub layers of the area, with about half of the plant species found at NCTC being considered non-native to this area. Nearly all of the larger tree species found today were present before the arrival of Europeans (an exception is Ailanthus, or Tree of Heaven, an invasive exotic notoriously difficult to eradicate that first arrived here in serious numbers in the last quarter of the 20th century.) Climate Mean annual precipitation in the eastern panhandle of West Virginia is approximately 102 cm/yr (40 in/yr). Because the region lies in the rain shadow of the Alleghenies to the west, precipitation is slightly lower than the rest of West Virginia. Summer temperatures average about 38° C (73 F) while winter temperatures average about 13° C (25 F) with 120-150 days of below freezing temperatures annually. The length of time that the ground is covered by snow any given year could be several hours to several months. A Natural History of NCTC 3 Geology and Soils The NCTC property is underlain by a geologic unit known as the Conococheague Limestone, a moderately folded and metamorphosed, sparsely fossiliferous carbonate of late Cambrian / early Ordovician age. Chemically it is dominated by calcium and magnesium carbonates, and contains occasional shaly or sandy layers. The strike of the bedding planes and rock outcrops is generally oriented about N15E. The limestone bedrock is susceptible to sinkholes, fissures and solution cavities. More resistant layers within this limestone have formed a bedrock sill and island in the Potomac River north of the campus. Rounded cobbles and gravels of quartzite can commonly be found along the upper river terrace, deposited more than 30,000 years ago when the base level of the Potomac was at this elevation, eroding the resistant silica-rich ridges to the west. Based on the mapped distribution of these quartzite deposits, the Potomac River has largely stayed within or very near its present channel near NCTC for more than 50,000 years, the elevation largely controlled by a series of bedrock sills. In upland areas, fairly rich red clay-loam soils have developed in place from the underlying parent material, while the floodplains and benches near the Potomac are composed of fine-grained alluvial soils. The carbonate-derived soils tend to be higher in pH than the more acidic soils of the Blue Ridge and other nearby ridges, which have formed from rock with a higher silica content. This explains why some regionally common species such as white pine, mountain laurel, scarlet oak, and American holly do not occur here in naturally growing stands, although they may sometimes be successfully planted. Land Use History In the western United States, plant distributions and patterns can often be best explained by ecological factors such as moisture gradients, elevation, or geology. A glance out the window of an airplane flying over the mid-Atlantic region is all the evidence you need that there are other factors at play here to account for the fanciful patterns of plants across the landscape. The pattern of plant distributions at NCTC, like much of the land east of the 100th meridian, is most strongly correlated with past and present human landscape management practices Archeological evidence has shown that Native Americans used the property at least seasonally for more than 8000 years. The most recent evidence for occupation dates to about 400 years before the arrival of Europeans. Cultural practices such as the use of fire and the growing of crops such as corn and squash no doubt had a significant influence on the plant communities that were established here by the 1700s. Europeans first began developing plantation agriculture on the property that became NCTC in the early 1730s. Trees specifically mentioned on early land surveys for the property in the eighteenth century include white oak, red oak, black oak, hickory, black walnut, elm, boxelder, honey locust, sugar maple, and ash – all trees that still exist on the property today. The A Natural History of NCTC 4 presence of these trees in the early surveys shows that the property was at least partly forested when Europeans first arrived. In 1734 the property was included as part of one of the very first King’s Patents issued in the region, suggesting that the earliest settlers, who could pick from among the choicest properties, found something very attractive here. Since the earliest colonists had to quickly establish forage and cash crops for survival, they were unlikely to have chosen land in continuous closed canopy forest (why spend months or years cutting down trees if you don’t have to?). It seems probable the landscape was a mix of meadow and scattered groups of trees. Fire and grazing by herds of buffalo and elk likely helped to maintain a more open landscape, just as they did a few miles to the west on the open prairie of the Shenandoah Valley. The center of the Shenandoah Valley was (and is) more likely to retain an open sparsely wooded landscape because of poorer soils derived from the underlying Martinsburg Shale, an area the early colonists referred to as the “barrens”. The first European visitors to Terrapin Neck, however, would have been more apt to encounter forested areas because of the richer soils, and thus any openings in the forest would necessarily have required the presence of frequent fires or grazing to remove fast-growing woody species. Since the 1730s, crops have included tobacco, wheat, corn and various grain crops as well as flax, hemp, hay, and apple orchards. Farm animals were raised here continuously for nearly 250 years and included cattle, sheep, horses, and hogs. Most trees that were standing in the 1730s were probably removed before 1800; the same fields have been farmed as crops or pasture ever since, although several changes in the locations of fencelines have occurred over the years. Various small remnant patches of forest in rockier, less accessible areas have been selectively cut or clearcut for firewood, fencing, or lumber for more than 200 years. Much of the area surrounding the campus now forested with sycamore, tulip poplar and boxelder was an open pasture in 1938. The only extensive patches of trees on the property more than 100 years old are located on the narrow, steep slope north of the campus buildings overlooking the river, and a rocky strip along Terrapin Neck road. These older forest patches (counts of tree rings on some of the older-looking trees suggest they were saplings in the 1880s) have been selectively cut over the years but still retain the highest concentration of native forbs and shrubs in the understory. Grazing in the pastures and woodlands by beef cattle ended about 1995; since then succession has created a brambly understory of multiflora rose, ailanthus, Japanese honeysuckle and various European annuals. During facility construction care was taken to save many small patches of overstory trees but edge effects from disturbance and increased sunlight have created impenetrable thickets of invasive exotics along the edges of most of these remnant patches. A Natural History of NCTC 5 Habitat Types The following section describes some general vegetative habitat types at NCTC. More detailed information can be found on the Geographical Information System (GIS) developed by NCTC’s Technical Training Branch. Mapping of plant units on the property was accomplished in 1997 for the use of the GIS courses at NCTC using several classification schemes, including the Anderson Land Use / Land Cover classification, the Society of American Foresters classification, and the National Vegetation Classification System. In this document, vegetation will be described in more general terms, including the location and primary species composition. A plant list for the property is included in a later section. Older Forest The older forest community occurs on the edges of NCTC, including the north-facing slopes and ravines overlooking the river, along the Terrapin Neck road property boundary, and along the western fenceline of the property. The boundaries of this forest type today correlate well with those areas under forest canopy in a 1938 aerial photo. Tree ring cores taken from several of the larger trees suggest some of the trees were established in the 1870s. The overall species composition of this forest type is very diverse and contains the highest concentration of native species. The dominant overstory trees include black oak, red oak, bitternut hickory, green ash, black walnut, sugar maple, American elm, and hackberry. Common understory trees include pawpaw, sugar maple, and flowering dogwood, with redbud near the sunnier edges. Characteristic understory shrubs include spicebush, blackhaw and several invasive exotics including multiflora rose, tartarian honeysuckle and wineberry. Along Terrapin Neck road and the north-facing slope overlooking the river the understory herbaceous plants exhibit a fairly high percentage of native species, including spring wildflowers such as mayapple, ramp (wild leek), squirrel corn, dutchman’s breeches, twinleaf, wild ginger, cut-leaf toothwort, spring beauty, trillium and yellow trout lily. The western fenceline tends to have fewer native herbaceous plants because of recent grazing by beef cattle, but it does contain a nice stand of older beech trees. A Natural History of NCTC 6 In the forested areas that were grazed or otherwise disturbed in more recent times the understory herbaceous plants tend to be composed of white snakeroot, and exotics such as Indian strawberry, Japanese stilt grass, chickweed, and beefstake plant. The edges of this forest type, including the interior gaps that allow increased sunlight, are commonly overgrown with vines and shrubs including natives such as wild grape, Virginia creeper, greenbriar and poison ivy, and invasive exotics such as Japanese honeysuckle, young ailanthus trees, multiflora rose and wineberry. Because these forest patches were selectively cut and occasionally grazed by beef cattle over the years, and have a high edge-to-area ratio, they commonly take on many of the characteristics of a younger, more highly disturbed forest. The steep ravines and slopes in the northeast corner of NCTC and portions of the woods along Terrapin Neck road have the most intact native species composition. Younger Forest The younger forested areas at NCTC correlate well with those areas now forested, but were open pasture or croplands in a 1938 aerial photo. These areas have grown nearly as tall or taller than the older forest patches and in some areas have a nearly closed canopy, but can still be recognized by the tree and understory species composition. Dominant overstory tree species include sycamore, tulip poplar, and black walnut, while the understory trees include a high percentage of boxelder and pawpaw. Occasional patches of red cedar struggling to survive in the shade give evidence of more recent sunny conditions. Shrubs and vines often make it difficult to walk in these areas – the increased availability of sunlight from a relatively open canopy, trails and other edges often create a jungle of spicebush, multiflora rose, wineberry, Japanese honeysuckle, poison ivy, wild grape, greenbriar and Virginia creeper. Paths and edges in the shadier portions are often lined with herbaceous plants such as white snakeroot, Japanese stilt grass, smartweed, beefsteak plant and clearweed. The sunnier edges take on the herbaceous species composition of a meadow, commonly including several species of goldenrod, wingstem, American germander, orchard grass and tall fescue. The herbaceous understory is composed of a lower percentage of native plants; native spring wildflowers are often difficult to find. Old Field Old fields can be divided into three types at NCTC: the upland old fields, the riverbottom old fields, and the old fields that were planted in native warm season grasses in May A Natural History of NCTC 7 1999. The area south of the NCTC campus along the entrance road that is managed as open grassland is one of the main locations for the upland old field habitat type, although there are several smaller patches on the western side of the property. Orchard grass and tall fescue, along with several other grasses including purple top, Kentucky bluegrass, broomsedge, yellow foxtail, timothy and barnyard grass dominate the species composition. Other common herbaceous species include dandelion, chickory, common fleabane, moth mullein, nodding thistle, bull thistle, Queen Anne’s lace, field cress and black medic. Old fence lines and rock outcrops have allowed trees such as ailanthus, red cedar, boxelder, black locust, black cherry, and hackberry to become established in small, linear patches. Common woody invaders that have started to become established in the fields include multiflora rose, autumn olive, boxelder, and red cedar. The old fields in the bottomland next to the Potomac, last plowed in 1997, are rapidly undergoing succession, with boxelder, silver maple, and green ash becoming established near the riparian zone (the area just east of the boatramp has been mowed several times in the last few years and is in an earlier stage of succession). Common understory plants include many of those listed above, but additionally include a high percentage of such species as annual wormwood, Canada thistle, wingstem, several species of goldenrod, and curly dock. Near the riparian edge Virginia wild rye is common. Following an application of glyphosate herbicide, twenty-six acres were planted in native warm season grasses in spring 1999. The first field, adjacent to Shepherd Grade south of the NCTC entrance, was last planted in corn in 1998, while a second field, just above it on the hillside, was planted in oats in 1998. A small 5 acre field just south of Instructional West was an old pasture split by a fence, since removed, that was first A Natural History of NCTC 8 planted after disking and an herbicide treatment in a non-native wildflower and grass mix about 1997, but it instead became an impenetrable mass of nodding thistle and bull thistle over most of the acreage (the seed mix was successfully established only in the lower western slope of this field). All three fields in 1999 were planted with a native seed mix including big bluestem, little bluestem, Indian grass, gamma grass, switchgrass, and side-oats gramma, with a native wildflower seedmix containing mostly black-eyed Susan and coreopsis. Several months of severe drought followed planting, which slowed the initial establishment, but by summer 2001 the two larger fields near the entrance were largely successful, while the smaller field next to campus at first had a high concentration of yellow foxtail and barnyard grass that overwhelmed about half of the field; by summer 2003 the native seed mix was much more prominent. Riparian The riparian community can be found along the relatively steep north-facing riverbank directly adjacent to the Potomac River. The plant community here is composed of species tolerant of the frequency and magnitude of Potomac River flood events. A close inspection reveals that the riverbank is “stepped” about halfway down. The “step” is referred to as the height of the bankfull channel and marks the height of the river when it is most efficient at moving sediment; this is also referred to as the channel forming discharge. The area below the step and above the wetted perimeter is considered part of the active channel, which experiences fairly frequent flood events. On average the river reaches the height of the bankfull channel – the “step” – about every 1.5 years. The broad flat bench south of the riverbank once used for crops is an old floodplain or bench, with flood frequency probabilities over the hundred-year range. The most common trees in the riparian zone are primarily flood tolerant species. Below the bankfull stage height, the most common species by far are boxelder (dominant in terms of numbers of individuals), silver maple (dominant in terms of basal area, or biomass), and sycamore. Above the bankfull discharge height, additional species include pawpaw, American elm, green ash, hackberry, and black walnut. The commonest shrubs include spicebush and bladderpod. Common herbaceous plants include Virginia wild rye, wood nettle, gill-oer-the-ground, jewelweed and garlic mustard. Spring wildflowers include the non-native star of Bethlehem, and natives such as yellow trout lily, white trout lily, wild ginger, and Virginia bluebells. A Natural History of NCTC 9 Springs, Creeks and Ponds There are both intermittent and perennial springs forming small creeks on the NCTC property. The water is “hard”, leaving calcium carbonate deposits (travertine) on the creek bottoms especially where small waterfalls aerate the water. The creek entering the Potomac west of the boatramp originates on the lower slope of the hillside below the ruins of RiverView Farm, and several other locations downstream. This creek is intermittent and only flows at its lower end during hot and dry weather. Summer temperatures are in the 14-16° C (57-61° F) range, with pH between 8 and 8.5, and dissolved oxygen between 5 and 9 ppm. Conductivity is in the 600-700 μS range, and is relatively higher than the other creek because of lower water volumes and perhaps longer residence time in the substrate. The creek near the Springwood estate begins in several adjacent perennial springheads that feed into a shallow pond excavated in the mid-20th century. The pond changes the chemical nature of the water in the stream below, with summer temperatures in the 18- 22° C (64-72° F) range, and pH slighter higher in the 8.5 to 8.9 range because of the increased primary productivity using up the available carbon dioxide. Summer daytime dissolved oxygen levels are about the same as the other creek, in the 5-9 ppm range, and conductivity is somewhat lower, in the 400-600 μS range. No fish have been collected in these spring-fed creeks, but snapping turtles, wood turtles and various amphibians have been found there. Three storm water management ponds were built during the construction of NCTC that hold water year round. In just a few years they have attracted a number of frog, toad and salamander species, aquatic and wetland plants and insects. Problematic species that have required some control measures include the phragmites that is prominent in the pond near the Daycare center. Summer temperatures, water volumes, and resulting water chemistry limit the survival of some species in these ponds. Daytime water temperatures can be nearly 90° F during the hottest part of the summer. Primary productivity is high during the day because of the algae and other aquatic plants, leading to supersaturated dissolved oxygen levels and a pH greater than 10. At night pH levels drop and dissolved oxygen levels are reduced to zero, creating a rather harsh chemical environment for many aquatic species. Conductivity of the pond water is typically in the 100-200 μS range, a result of its stormwater derivation and the clay liner that limits contact with the underlying carbonate substrate. A Natural History of NCTC 10 The Potomac River in the summer has a pH of about 7.5-8, in the winter it is between 6 and 7. Summer specific conductivity is in the 200-400 μS range. Summer temperatures can be very warm during low flow; for example in 1999 summer daytime temperatures monitored in the river adjacent to NCTC ranged from 24 to 32° C (75-90 F); this was a year of severe drought when the hydrograph went one direction – down – from May through August. Wetlands Wetlands at NCTC are located in small pockets adjacent to the two creeks where topographic relief allows the water to spread out a few tens of feet to the side. The species composition tends to be high in natives, though there are often just a few individuals of each species present. Collection of plants from these areas, therefore, should be avoided, as you may remove the only individuals growing here. Some characteristic species include New York ironweed, ditch stonecrop, rattlesnake mannagrass, rice cutgrass, and several species of carex and scirpus. Small, scattered patches of wetland plants (mostly facultative) can be found on the river terrace and near small seeps. A Natural History of NCTC 11 NCTC Plant List Trees COMMONNAME GENUS SPECIES FAMILY NATIVE Boxelder Acer negundo Aceraceae native Sugar Maple Acer saccharum Aceraceae native Silver Maple Acer saccharinum Aceraceae native Black Maple Acer nigrum Aceraceae native Tree of Heaven Ailanthus altissima Simaroubacea e alien Paw-Paw Asimina triloba Annonaceae native Sweet Birch Betula lenta Corylaceae native River Birch Betula nigra Corylaceae native Shagbark Hickory Carya ovata Juglandaceae native Pignut Hickory Carya glabra Juglandaceae native Bitternut Hickory Carya cordiformis Juglandaceae native Hackberry Celtis occidentalis Ulmaceae native Redbud Cercis canadensis Leguminosae native Flowering Dogwood Cornus florida Cornaceae native American Beech Fagus grandifolia Fagaceae native Green Ash Fraxinus pennsylvanica Oleaceae native White Ash Fraxinus americana Oleaceae native Honey Locust Gleditsia triacanthos Leguminosae native Black Walnut Juglans nigra Juglandaceae native Red Cedar Juniperus virginianus Cupressaceae native Tulip Poplar Liriodendron tulipifera Magnoliaceae native Cucumber Tree Magnolia acuminata Magnoliaceae native White Mulberry Morus alba Moraceae alien Virginia Pine Pinus virginiana Pinaceae native Pitch Pine Pinus rigida Pinaceae native White Pine Pinus strobus Pinaceae native Sycamore Platanus occidentalis Platanaceae native Bigtooth Aspen Populus grandidentata Salicaceae native Cottonwood Populus deltoides Salicaceae native Black Cherry Prunus serotina Rosaceae native Sweet Cherry Prunus avium Rosaceae alien Wild Crabapple Pyrus coronaria Rosaceae native Scarlet Oak (?) Quercus coccinea Fagaceae native Chinquapin Oak Quercus muhlenbergii Fagaceae native Red Oak Quercus rubra Fagaceae native Chestnut Oak Quercus prinus Fagaceae native Black Oak Quercus velutina Fagaceae native White Oak Quercus alba Fagaceae native Black Locust Robinia pseudo-acacia Leguminosae native Sassafras Sassafras albidum Lauraceae native Basswood Tilia americana Tiliaceae native Slippery Elm Ulmus rubra Ulmaceae native American Elm Ulmus americana Ulmaceae native A Natural History of NCTC 12 Shrubs COMMONNAME GENUS SPECIES FAMILY NATIVE Prickly Gooseberry Ribes cynosbati Saxifragaceae native Staghorn Sumac Rhus typhina Anacardiaceae native Jetbead Rhodotypos scandens Rosaceae alien Elderberry Sambucus canadensis Caprifoliaceae native Multiflora Rose Rosa multiflora Rosaceae alien Witch Hazel Hamamelis virginiana Hamamelidace ae native Wild Hydrangea Hydrangea arborescens Saxifragaceae native Spicebush Lindera benzoin Lauraceae native Bladderpod Staphylea trifolia Staphyleaceae native Autumn Olive Elaeagnus umbellata Eleagnaceae alien Blackhaw Viburnum prunifolium Caprifoliaceae native Tartarian Honeysuckle Lonicera tartarica Caprifoliaceae alien Grasses COMMONNAME GENUS SPECIES FAMILY NATIVE Colonial Bent Grass Agrostis tenuis Poaceae native Broomsedge Andropogon virginicus Poaceae native Big Bluestem* Andropogon gerardi Poaceae native Little Bluestem* Andropogon scoparius Poaceae native Sweet Vernal Grass Anthoxanthum odoratum Poaceae alien Small Carp Grass Arthraxon hispidus Poaceae alien Oats Avena sativa Poaceae alien Side-oats Grama* Bouteloua curtipendula Poaceae native Long-awned Wood Grass Brachyeletrum erectrum Poaceae native Brome Grass Bromus tectorum Poaceae alien Brome Grass Bromus inermis Poaceae alien Bermuda Grass Cynodon dactylon Poaceae alien Orchard Grass Dactylus glomerata Poaceae alien Smooth Crabgrass Digitaria ischaemum Poaceae alien Crabgrass Digitaria sanguinalis Poaceae alien Barnyard Grass Echinochloa crusgalli Poaceae alien Goose Grass Eleusine indica Poaceae alien Wild Rye Elymus villosus Poaceae native Canadian Rye Elymus canadensis Poaceae native Virginia Wild Rye Elymus virginicus Poaceae native Frank’s Love Grass Eragrostis frankii Poaceae native Tall Fescue Lolium arundinaceum Poaceae alien Rattlesnake Mannagrass Glyceria canadensis Poaceae native Fowl Mannagrass Glyceria striata Poaceae native Bottlebrush Grass Elymus hystrix Poaceae native White Grass Leersia virginica Poaceae alien Rice Cutgrass Leerzia orizoides Poaceae alien A Natural History of NCTC 13 Italian Rye Grass Lolium multiflorum Poaceae alien Perennial Rye Lolium perenne Poaceae alien Two-flower Melica Melica mutica Poaceae native Japanese Stilt Grass Microstegium viminium Poaceae alien Wood Witch Grass Panicum philadephicum Poaceae native Switch Grass* Panicum virgatum Poaceae native Timothy Phleum pratense Poaceae alien Phragmites Phragmites communis Poaceae native Kentucky Bluegrass Poa pratensis Poaceae alien Rye Grass Secale cereale Poaceae alien Yellow Foxtail Setaria glauca Poaceae alien Foxtail Setaria faberii Poaceae alien Indian Grass* Sorghastrum nutans Poaceae native Johnson Grass Sorghum halapense Poaceae alien Dropseed Sporobolus vaginiflorus Poaceae native Purpletop Tridens flavum Poaceae native Wheat Triticum aestivum Poaceae alien * Denotes those grasses that were planted on about 26 acres in 1999 and now established. Forbs COMMONNAME GENUS SPECIES FAMILY NATIVE Velvet-leaf Abutilon theophrasti Malvaceae alien Wingstem Actinomeris alternifolia Asteraceae native Tall Agrimony Agrimonia gryposepala Rosaceae native Garlic Mustard Alliaria officinalis Cruciferae alien Meadow Garlic Allium canadense Liliaceae native Wild Leek Allium tricoccum Liliaceae native Green Amaranth Amaranthus retroflexus Amaranthacea e alien Giant Ragweed Ambrosia trifida Asteraceae native Ragweed Ambrosia artemisiifolia Asteraceae native Common Pimpernel Anagallis arvensis Primulaceae alien Rue-anemone Anemonella thalictroides Ranunculacea e native Mayweed Anthemis cotula Asteraceae alien Puttyroot Aplectrum hyemale Orchidaceae native Indian Hemp Apocynum cannabinum Apocynaceae native Wild Columbine Aquilegia canadensis Ranunculacea e native Spreading Rockcress Arabis patens Cruciferae native (rare) Rockcress Arabis perstellatus Cruciferae native (rare) Smooth Rock Cress Arabis laevigata Cruciferae native Burdock Arctium minus Asteraceae alien Jack-in-the-Pulpit Arisaema atrorubens Araceae native Mugwort Artemisia vulgaris Asteraceae alien Annual Wormwood Artemisia annua Asteraceae alien Wild Ginger Asarum canadense Aristolochiacea native A Natural History of NCTC 14 Green-flowered Milkweed Asclepias viridiflora Asclepiadacea e native Common Milkweed Asclepias syriaca Asclepiadacea e native Butterfly Weed Asclepias tuberosa Asclepiadacea e native White Wood Aster Aster divaricatus Asteraceae native Bushy Aster Aster dumosus Asteraceae native Calico Aster Aster lateriflorus Asteraceae native Lowrie’s Aster Aster lowrieanus Asteraceae native Short's Aster Aster shortii Asteraceae native Small White Aster Aster vimineus Asteraceae native Heath Aster Aster pilosus Asteraceae native Wild Indigo Baptisia tinctoria Leguminosae native Early Winter Cress Barbarea verna Cruciferae alien Winter Cress Barbarea vulgaris Cruciferae alien Larger Bur Marigold Bidens leavis Asteraceae native Begger Ticks Bidens frondosa Asteraceae native False Nettle Boehmeria cylindrica Urticaceae native Tall Bellflower Campanula americana Campanulacea e native Shepherd's Purse Capsella bura-pastoris Cruciferae alien Hairy Bittercress Cardamine hirsuta Cruciferae native Common Thistle Carduus acanthoides Asteraceae alien Musk Thistle Carduus nutans Asteraceae alien Blue Cohosh Caulophyllum thalictroides Berberidaceae native Yellow Star Thistle Centaurea solstitialis Asteraceae alien Brown Knapweed Centaurea jacea Asteraceae alien Mouse-Ear Chickweed Cerastium vulgatum Caryophyllacea e alien Celandine Chelidonium majus Papaveraceae alien Turtlehead Chelone glabra Scrophulariace ae native Lamb's-quarters Chenopodium album Chenopodiace ae alien Skeleton-weed Chondrilla juncea Asteraceae alien Ox-eye Daisy Chrysanthemu m leucanthemum Asteraceae alien Chicory Cichorium intybus Asteraceae alien Black Cohosh Cimicifuga racemosa Ranunculacea e native Enchanter's Nightshade Circaea quadrisulcata Chenopodiace ae native Bull Thistle Cirsium vulgare Asteraceae alien Canada Thistle Cirsium arvense Asteraceae alien Spring Beauty Claytonia virginica Portulacaceae native Horse-balm Collinsonia canadensis Scrophulariace ae native Asiatic Dayflower Commelina communis Commelinacea e alien Poison Hemlock Conium maculatum Umbelliferae alien Cancerroot Conopholis americana Orobanchacea e native Hare's-Ear Mustard Conringia orientalis Cruciferae alien Hedge Bindweed Convulvulus sepium Convulvulacea e native Lance-leaved Tickseed Coreopsis lanceoloata Asteraceae native Yellow Corydalis Corydalis flavula Fumariaceae native Honewort Cryptotaenia canadensis Umbelliferae native Tarweed Cuphea petiolata Lythraceae native Jimsonweed Datura stramonium Solanaceae native Queen Anne's Lace Daucus carota Umbelliferae alien A Natural History of NCTC 15 Dwarf Larkspur Delphinium tricorne Ranunculacea e native Cut-Leaved Toothwort Dentaria laciniata Cruciferae native Tick-trefoil Desmodium perplexum Leguminosae native Tick-trefoil Desmodium paniculatum Leguminosae native Tick-trefoil Desmodium glutinosum Leguminosae native Hoary Tick-Trefoil Desmodium canascens Leguminosae native Deptford Pink Dianthus armeria Caryophyllacea e alien Dutchman's Breeches Dicentra cucullaria Fumariaceae native Squirrel Corn Dicentra canadensis Fumariaceae native Shooting Star Dodecatheon meadia Primulaceae native Indian Strawberry Duchesnea indica Rosaceae alien Viper's Bugloss Echium vulgare Boraginaceae alien Ellisia Ellisia nyctelea Hydrophyllacea e native Purple-leaved Willow Herb Epilobium coloratum Onagraceae native Northern Willow Herb Epilobium glandulosum Onagraceae native Harbinger of Spring Erigenia bulbosa Umbelliferae native Daisy Fleabane Erigeron annuus Asteraceae native Horseweed Erigeron canadensis Asteraceae native Common Fleabane Erigeron philadelphicus Asteraceae native Daisy Fleabane Erigeron strigosus Asteraceae native Trout Lily Erythronium americanum Liliaceae native White Trout Lily Erythronium albidum Liliaceae native Boneset Eupatorium perfoliatum Asteraceae native Spotted Joe-Pye Weed Eupatorium maculatum Asteraceae native White Snakeroot Ageretina altissima Asteraceae native Mistflower Conoclinium coelestinum Asteraceae native Late Flowering Thoroughwort Eupatorium serotinum Asteraceae native Cyperus Spurge Euphorbia cyparissias Euphorbiaceae alien Spotted Spurge Euphorbia maculata Euphorbiaceae alien False Mermaid Weed Floerkea proserpinacoid es Limnanthaceae native Woodland Strawberry Fragaria vesca Rosaceae alien Galinsoga Galinsoga ciliata Asteraceae alien Fragrant Bedstraw Galium triflorum Rubiaceae native Hairy Bedstraw Galium pilosum Rubiaceae native Long-stalked Cranesbill Geranium columbinum Geraniaceae alien Small-flowered Cranesbill Geranium pusillum Geraniaceae alien White Avens Geum canadense Rosaceae native Rough Avens Geum virginianum Rosaceae native Gill-over-the-ground Glechoma hederacea Labiatae alien Cudweed Gnaphalium obtusifolium Asteraceae native Virginia Stickseed Hackelia virginiana Boraginaceae native Sneezeweed Helenium autumnale Asteraceae native Thin-leaved Sunflower Helianthus decapetalus Asteraceae native Rough Ox-eye Heliopsis scabra Asteraceae native Ox Eye Daisy Heliopsis helianthoides Asteraceae native Day Lily Hemerocallis fulva Liliaceae alien Round-lobed Hepatica Hepatica americana Ranunculacea e native Dame's Rocket Hesperis matronalis Cruciferae alien A Natural History of NCTC 16 Flower-of-an-Hour Hibiscus trionum Malvaceae alien Virginia Waterleaf Hydrophyllum virginianum Hydrophyllacea e native Common St. Johnswort Hypericum perforatum Guttiferae alien Spotted St. Johnswort Hypericum punctatum Guttiferae native Dwarf St. Johnswort Hypericum mutilum Guttiferae native Jewelweed Impatiens capensis Balsaminaceae native Pale Touch-Me-Not Impatiens pallida Balsaminaceae native Ivy-Leaved Morning-Glory Ipomea hederacea Convulvulacea e alien Twinleaf Jeffersonia diphylla Berberidaceae native Water Willow Justicia americana Acanthaceae native Prickly Lettuce Lactuca scariola Asteraceae alien Wood Nettle Laportea canadensis Urticaceae native Motherwort Leonurus cardiaca Labiatae alien Field Cress Lepidium campestre Cruciferae alien Bushclover Lespedeza intermedia Leguminosae native Butter-and-eggs Linaria vulgaris Scrophulariace ae alien False Pimpernel Lindernia dubia Scrophulariace a native Cardinal Flower Lobelia cardinalis Lobeliaceae native Great Lobelia Lobelia syphilitica Lobeliaceae native Indian Tobacco Lobelia inflata Lobeliaceae native Spiked Lobelia Lobelia spicata Lobeliaceae native White Campion Lychnis alba Caryophyllacea e alien Northern Bugleweed Lycopus uniflora Labiatae native Moneywort Lysimachia nummularia Primulaceae alien Fringed Loosestrife Lysimachia ciliata Primulaceae native White Sweetclover Melilotus alba Leguminosae alien Yellow Sweetclover Melilotus officinalis Leguminosae alien Virginia Bluebell Mertensia virginica Boraginaceae native Bishop's Cap Mitella diphylla Saxifragaceae native Wild Bergomot Monarda fistulosa Labiatae native Indian Pipe Monotropa uniflora Pyrolaceae native Watercress Nasturtium officianale Cruciferae alien Catnip Nepeta cataria Labiatae alien Common Evening Primrose Oenothera biennis Onagraceae native Northern Evening Primrose Oenothera parviflora Onagraceae native White Evening Primrose Oenothera speciosa Onagraceae native Star-of-Bethlehem Ornithogalum umbellatum Liliaeae alien Sweet Cicely Osmorhiza claytoni Umbelliferae native Yellow Wood Sorrel Oxalis europaea Oxalidaceae native Yellow Wood-Sorrel Oxalis stricta Oxalidaceae native Poppy Papaver dubium Papaveraceae alien Ditch Stonecrop Penthorum sedoides Saxifragaceae native Beefsteak Plant Perilla frutescens Labiatae alien Mountain Phlox Phlox ovata Polemoniaceae native Blue Phlox Phlox divaricata Polemoniaceae native Lopseed Phryma leptostachya Phrymaceae native Smooth Ground Cherry Physalis subglabrata Solanaceae native Common Ground-cherry Physalis heterophylla Solanaceae native A Natural History of NCTC 17 Pokeweed Phytolacca americana Phytolaccacea e native Clearweed Pilea pumila Urticaceae native Common Plantain Plantago rugellii Plantaginaceae native Common Plantain Plantago major Plantaginaceae alien English Plantain Plantago lanceolata Plantaginaceae alien Mayapple Podophyllum peltatum Berberidaceae native Solomon's Seal Polygonatum canaliculatum Liliaceae native Mild Water Pepper Polygonum hydropiperoide s Polygonaceae native Water Smartweed Polygonum coccineum Polygonaceae native Dock-leaved Smartweed Polygonum lapathifolium Polygonaceae native Ladies Thumb Polygonum persicaria Polygonaceae alien Water Smartweed Polygonum punctatum Polygonaceae native Asiatic Water Pepper Polygonum cespitosum Polygonaceae alien Large-flowered Leafcup Polymnia uvedalia Asteraceae native Rough-fruited Cinquefoil Potentilla recta Rosaceae alien Rough Cinquefoil Potentilla norvegica Rosaceae native Tall Cinquefoil Potentilla arguta Rosaceae native Self-Heal Prunella vulgaris Labiatae native Swamp Buttercup Ranunculus septentrionalis Ranunculacea e native Crowfoot Ranunculus abortivus Ranunculacea e native Cursed Crowfoot Ranunculus sceleratus Ranunculacea e native Hooked Crowfoot Ranunculus recurvatus Ranunculacea e native Black-Eyed Susan Rudbeckia hirta Asteraceae native Brown-eyed Susan Rudbeckia fulgida Asteraceae native Ruellia Ruellia strepens Acanthaceae native Curly Dock Rumex crispus Polygonaceae alien Sheep Sorrel Rumex acetosella Polygonaceae alien Bloodroot Sanginaria canadensis Papaveraceae native Long-Fruited Snakeroot Sanicula trifoliata Umbelliferae native Black Snake Root Sanicula marylandica Umbelliferae native Bouncing Bet Saponaria officinalis Caryophyllacea e alien Wild Basil Satureja vulgaris Labiatae alien Lizard Tail Saururus cernuus Saururaceae native Early Saxifrage Saxifraga virginiensis Saxifragaceae native Mad-dog Skullcap Scutellaria lateriflora Labiatae native Wild Stonecrop Sedum ternatum Crassulaceae native Squaw-weed Senecio obovatus Asteraceae native Golden Ragwort Senecio aureus Asteraceae native Prickly Mallow Sida spinosa Malvaceae alien Hedge Mustard Sisymbrium officinale Crusiferae alien Tumble Mustard Sisymbrium altissimum Cruciferae alien Blue-eyed Grass Sisyrinchium angustifolium Iridaceae native False Solomon's Seal Smilacina racemosa Liliaceae native Horse Nettle Solanum carolinense Solanaceae native Black Nightshade Solanum americanum Solanaceae native Wreath Goldenrod Solidago caesia Asteraceae native Sweet Goldenrod Solidago odora Asteraceae native Late Goldenrod Solidago gigantea Asteraceae native A Natural History of NCTC 18 Early Goldenrod Solidago juncea Asteraceae native Rough-stemmed Goldenrod Solidago rugosa Asteraceae native Spiny Sow Thistle Sonchus asper Asteraceae alien Venus Looking Glass Specularia perfoliata Campanulacea e native Rough Hedge-Nettle Stachys tenuifolia Labiatae native Common Chickweed Stellaria media Caryophyllacea e alien Star Chickweed Stellaria pubera Caryophyllacea e native Common Dandelion Taraxacum officinale Asteraceae alien American Germander Teucrium canadense Labiatae native Tall Meadow Rue Thalictrum polygamum Ranunculacea e native Foam Flower Tiarella cordifolia Saxifragaceae native Virginia Knotweed Tovara virginiana Polygonaceae native Yellow Goat's Beard Tragopogon pratensis Asteraceae alien Yellow Goat's Beard Tragopogon major Asteraceae alien Low Hop Clover Trifolium campestre Leguminosae alien Rabbit's Foot Clover Trifolium arvense Leguminosae alien Red Clover Trifolium pratense Leguminosae alien White Clover Trifolium repens Leguminosae alien Red Trillium Trillium erectum Liliaeae native Toad Trillium Trillium sessile Liliaeae native Coltsfoot Tussilago farfara Asteraceae alien Cattail Typha latifolia Typhaceae native Burning Nettle Urtica dioica Urticaceae alien Moth Mullein Verbascum blattaria Scrophulariace ae alien Common Mullein Verbascum thapsus Scrophulariace ae alien Blue Vervain Verbena hastata Verbenaceae native White Vervain Verbena urticifolia Verbenaceae native New York Ironweed Vernonia noveboracensi s Asteraceae native Corn Speedwell Veronica arvensis Scrophulariace ae alien European Brooklime Veronica beccabunga Scrophulariace ae alien Pale Violet Viola striata Violaceae native Round-leaved Violet Viola rotundifolia Violaceae native Common Blue Violet Viola papilionacea Violaceae native Cocklebur Xanthium strumarium Asteraceae native Sedges and Rushes COMMONNAME GENUS SPECIES FAMILY NATIVE Blunt Broom Sedge Carex tribuloides Cyperaceae native Carex Carex laxiculmis Cyperaceae native Carex Carex stipata Cyperaceae native Carex Carex intumescens Cyperaceae native Carex Carex frankii Cyperaceae native Carex Carex lurida Cyperaceae native Many-flowered Flatsedge Cyperus lancastriensis Cyperaceae native Galingale Cyperus strigosus Cyperaceae native Nut Sedge Cyperus esculentus Cyperaceae native A Natural History of NCTC 19 Common Rush Juncus effusus Juncaceae native Path Rush Juncus tenuis Juncaceae native Great Bulrush Scirpus validus Cyperaceae native Scirpus Scirpus lineatus Cyperaceae native Vines COMMONNAME GENUS SPECIES FAMILY NATIVE Trumpet Creeper Campsis radicans Bignoniaceae native Climbing Bittersweet Celastrus scandens Celastraceae native Field Bindweed Convolvulus arvensis Convulvulacea e alien Japanese Hop Humulus japonicus Canabinaceae alien Common Morning Glory Ipomea purpurea Convulvulacea e alien Wild Potato Vine Ipomea pandurata Convulvulacea e native Japanese Honeysuckle Lonicera japonica Caprifoliaceae alien Moonseed Menispermum canadense Menispermace ae native Virginia Creeper Parthenocissus quinquefolia Vitaceae native Yellow Passion Flower Passiflora lutea Passifloraceae native Poison Ivy Toxicodendron radicans Anacardiaceae native Wineberry Rubus phoenicolasius Rosaceae alien Black Raspberry Rubus occidentalis Rosaceae native Flowering Raspberry Rubus odoratus Rosaceae native One-seeded Bur Cucumber Sicyos angulatus Cucurbitaceae native Cat Briar Smilax rotundifolia Liliaceae native Periwinkle Vinca minor Apocynaceae alien Summer Grape Vitis aestivalis Vitaceae native Muscadine Vitis rotundifolia Vitaceae native Winter Grape Vitus vulpina Vitaceae native Ferns and Fern Allies COMMONNAME GENUS SPECIES FAMILY NATIVE Maidenhair Spleenwort Asplenium trichomanes Polypodiaceae native Meadow Spikemoss Selagenella apoda Sellagenellace ae native Field Horsetail Equisetum arvense Equisetaceae native Rattlesnake Fern Botrychium virginianum Ophioglossace ae native Purple Cliff-brake Pellaea atropurpurea Polypodiaceae native Common Maidenhair Adiantum pedatum Polypodiaceae native Liverwort Marchantia polymorpha Marchantiacea e native Ebony Spleenwort Asplenium platyneuron Polypodiaceae native Fragile Fern Cystopteris fragilis Polypodiaceae native Sensitive Fern Onoclea sensibilis Polypodiaceae native Southern Lady Fern Athyrium asplenioides Polypodiaceae native Bulblet Bladder Fern Cystopteris bulbifera Polypodiaceae native Christmas Fern Polystichum acrostichoides Polypodiaceae native A Natural History of NCTC 20 Spinulose Wood Fern Dryopteris spinulosa Polypodiacea native Rockcap Fern Polypodium virginianum Polypodiaceae native Walking Fern Camptosorus rhyzophyllum Polypodiaceae native Note: Ornamental species planted during and after the construction phase of NCTC are not included in this list, with the exception of the native warm season grasses planted in 1999. Some of the plants in the vine category could also be considered shrubs and visa versa. The list is current as of March 2004. Nomenclature tends to follow Strausbaugh and Core, Flora of West Virginia, though is gradually conforming to NRCS Plants Database (http://plants.usda.gov) as changes are discovered. Identification by Dan Everson and Alan Temple; database maintained by Dan Everson. A Natural History of NCTC 21 Mammals White-tailed deer Odocoileus virginianus Red Fox Vulpes fulva Gray Fox Urocyon cinereoargenteus Bobcat Lynx rufus Black Bear Ursus americanus (rarely travels through the area) Coyote Canis latrans Long-tailed Weasel Mustela frenata Mink Mustela vison Gray Squirrel Sciurus carolinensis Eastern Fox Squirrel Sciurus niger Striped Skunk Mephitis mephitis Common Raccoon Procyon lotor Virginia Opossum Didelphus virginiana Groundhog Marmota monax Masked Shrew Sorex cinereus Common Water Shrew Sorex palustris Hairy-tailed Mole Parascalops breweri Eastern Mole Scalopus aquaticus Star-nosed Mole Condylura cristata Meadow Vole Microtus pennsylvanicus Eastern Woodrat Neotoma floridana Deer Mouse Peromyscus maniculatus White-footed Mouse Peromyscus leucopus House Mouse Mus musculus Eastern Chipmunk Tamius striatus Little Brown Bat Myotis lucifigus Big Brown Bat Eptesicus fuscus Red Bat Lasiurus borealis Hoary Bat Lasiurus cinereus Eastern Pipistrelle Bat Pipestrellus subflavus Eastern Cottontail Rabbit Sylvilagus floridanus American Beaver Castor canadensis River Otter Lutra canadensis Eastern Cottontail Silvilagus floridanus A Natural History of NCTC 22 Birds The Shenandoah Valley and the Potomac River form natural migration corridors for birds in the spring and fall, thus many of the species listed below can only be seen during these periods of migration; the species listed below have been seen at NCTC or in the immediate vicinity. Common winter residents are marked with an asterisk*. Cormorants, Grebes and Loons ı Double-crested Cormorant ı Pied-billed Grebe ı Common Loon Herons and Bitterns ı Great Blue Heron* ı Green Heron ı American Bittern ı Black-crowned Night Heron Waterfowl ı Canada Goose* ı Tundra Swan ı Wood Duck* ı Green-winged Teal ı Blue-winged Teal ı Mallard* ı Black Duck ı American Wigeon ı Ring-necked Duck ı Lesser Scaup ı Common Goldeneye ı Bufflehead ı Ruddy Duck ı Hooded Merganser ı Common Merganser ı Red-breasted Merganser ı American Coot Vultures ı Turkey Vulture* ı Black Vulture* Hawks and Eagles ı Sharp-shinned Hawk* ı Red-tailed Hawk* ı Red-shouldered Hawk ı Bald Eagle* ı Broad-winged Hawk ı American Kestrel* ı Cooper’s Hawk ı Osprey ı Peregrine Falcon Quail and Turkeys ı Northern Bobwhite* ı Wild Turkey* Sandpipers and Shorebirds ı Killdeer ı Solitary Sandpiper ı Baird’s Sandpiper ı Least Sandpiper ı American Woodcock ı Greater Yellowlegs ı Lesser Yellowlegs Gulls ı Ring-billed Gull Pigeons and Doves ı Rock Dove* ı Mourning Dove* Cuckoos and Allies ı Yellow-billed Cuckoo ı Black-billed Cuckoo Goatsuckers ı Common Nighthawk ı Whip-Poor-Will Owls ı Great Horned Owl* ı Barred Owl* ı Eastern Screech Owl* ı Long-eared Owl Hummingbirds ı Ruby-throated Hummingbird Kingfishers ı Belted Kingfisher* Woodpeckers ı Northern Flicker* ı Red-headed Woodpecker* ı Pileated Woodpecker* ı Red-bellied Woodpecker* ı Yellow-bellied Sapsucker* ı Hairy Woodpecker* ı Downy Woodpecker* Flycatchers ı Eastern Kingbird ı Great Crested Flycatcher ı Eastern Phoebe ı Acadian Flycatcher ı Eastern Wood-pewee Swallows and Swifts ı Barn Swallow ı Cliff Swallow ı Bank Swallow ı Tree Swallow ı Northern Rough-winged Swallow ı Purple Martin ı Chimney Swift Jays, Crows and Ravens ı Blue Jay* ı American Crow* ı Fish Crow* ı Common Raven* Chickadees and Titmice ı Carolina Chickadee* ı Black-capped Chickadee* ı Tufted Titmouse* Nuthatches and Creepers ı White-breasted Nuthatch* ı Red-breasted Nuthatch ı Brown Creeper* Wrens ı House Wren ı Carolina Wren* ı Winter Wren Mimic Thrushes ı Northern Mockingbird* ı Gray Catbird ı Brown Thrasher Shrikes ı Loggerhead Shrike Thrushes ı American Robin* ı Wood Thrush ı Hermit Thrush ı Eastern Bluebird* Kinglets and Gnatcatchers ı Blue-gray Gnatcatcher ı Ruby-crowned Kinglet A Natural History of NCTC 23 ı Golden-crowned Kinglet Waxwings ı Cedar Waxwing* Starlings ı European Starling* Vireos ı Solitary Vireo ı Red-eyed Vireo ı Philadelphia Vireo ı Warbling Vireo ı White-eyed Vireo ı Yellow-throated Vireo Wood Warblers ı Blue-winged Warbler ı Northern Parula ı Nashville Warbler ı Yellow-rumped Warbler ı Cerulean Warbler ı Kentucky Warbler ı Black-throated Blue Warbler ı Black-throated Green Warbler ı Blackburnian Warbler ı Pine Warbler ı Prairie Warbler ı Palm Warbler ı Bay-breasted Warbler ı Blackpoll Warbler ı Worm-eating Warbler ı Mourning Warbler ı Tennessee Warbler ı Wilson’s Warbler ı Yellow Warbler ı Chestnut-sided Warbler ı Magnolia Warbler ı Cape May Warbler ı Black-and-White Warbler ı American Redstart ı Prothonotary Warbler ı Ovenbird ı Northern Waterthrush ı Louisiana Waterthrush ı Common Yellowthroat ı Yellow-breasted Chat Weaver Finches ı House Sparrow* Blackbirds and Orioles ı Bobolink ı Eastern Meadowlark ı Red-winged Blackbird* ı Rusty Blackbird* ı Common Grackle* ı Brown-headed Cowbird* ı Orchard Oriole ı Baltimore Oriole Tanagers ı Scarlet Tanager Finches, Sparrows, etc. ı Northern Cardinal* ı Indigo Bunting ı House Finch* ı Dickcissel ı American Goldfinch ı Rufous-sided Towhee ı Chipping Sparrow ı Field Sparrow ı Song Sparrow* ı Lincoln’s Sparrow ı Swamp Sparrow ı American Tree Sparrow ı Fox Sparrow ı Grasshopper Sparrow ı White-throated Sparrow* ı White-crowned Sparrow ı Dark-eyed Junco* ı Bobolink ı Purple Finch ı Evening Grosbeak ı Rose-breasted Grosbeak Additional Species: A Natural History of NCTC 24 Reptiles and Amphibians Spotted Salamander Ambystoma maculatum Valley and Ridge Salamander Plethodon hoffmani Northern Dusky Salamander Desmognathus brimleyorum Long-tailed Salamander Eurycea longicauda Red-backed Salamander Plethodon cinereus American Toad Bufo americanus Fowler’s Toad Bufo woodhouseii Upland Chorus Frog Pseudacris triseriata feriarum Gray Tree Frog Hyla versicolor Green Tree Frog Hyla cinerea disjunct population Spring Peeper Hyla crucifer crucifer Green Frog Rana clamitans Pickerel Frog Rana palustris Bull Frog Rana catesbeiana Wood Frog Rana sylvatica Snapping Turtle Chleydra serpentina Eastern Box Turtle Terrapene carolina Eastern Painted Turtle Chrysemys picta picta Wood Turtle Clemmys insculpta Black Rat Snake Elaphe obsoleta obsoleta Northern Water Snake Nerodia sipedon Northern Black Racer Coluber constrictor Eastern Garter Snake Thamnophis sirtalis Eastern Ribbon Snake Thamnophis sauritus sauritus Fish (no fish have been recorded living in any of the ponds or small creeks on the property) The following list contains fish common to this section of the Potomac River Smallmouth Bass Micropterus dolomieu Largemouth Bass Microptera salmoides Common Carp Cyprinus carpio Quillback Carpiodes cyprinus Bluegill Lepomis macrochirus Redbreast Sunfish Lepomis auritus Pumpkinseed Lepomis gibbosus Green Sunfish Lepomis cyanellus Long-eared Sunfish Lepomis megalotis Rockbass Ambloplites rupestris American Eel Anguilla rostrata Channel Catfish Ictalurus punctatus Yellow Bullhead Ameiurus natalis Margined Madtom Noturus insignis Walleye* Stizostedion vitreum Muskelunge* Esox masquinongy A Natural History of NCTC 25 Creek Chub Semotilus atromaculatus Fallfish Semotilus corporalis River Chub Nocomis micropogon Greenside Darter Etheostoma blenniodes Rainbow Darter Etheostoma caeruleum Fantail Darter Etheostoma flabellare Tesselated Darter Etheostoma olmstedi Central Stoneroller Campostoma anomalum Spotfin Shiner Cyprinella spiloptera Cutlips Minnow Exoglossum maxillingua Common Shiner Luxilus cornutus Golden Shiner Notemigonus crysoleucas Comely Shiner Notropis amoenus Spottail Shiner Notropis hudsonius Rosyface Shiner Notropis rubellus Bluntnose Minnow Pimephales notatus Blacknose Dace Rhinichthys atratulus Longnose Dace Rhinichthys cataractae Pearl Dace Margariscus margarita White Sucker Catostomus commersoni Northern Hogsucker Hypentelium nigricans Golden Redhorse Sucker Moxostoma erythrurum Shorthead Redhorse Sucker Moxostoma macrolepidotum Brook Trout* Salvelinus fontinalis Banded Killifish Fundulus diaphanus Yellow Perch Perca flavescens * = stocked fish A Natural History of NCTC 26 Invertebrates (Note: invertebrates and aquatic macrophytes have not been recorded in great detail as yet, but we are working on it – the list below is what we have thus far.) Aquatic invertebates include Asiatic clam, Corbicula fluminea which is present in high numbers in the Potomac River. It is an invasive exotic that appeared in the mid-20th century, with old shells several inches deep on the edges of Shepherd Island. Native mussels from several genera are also found in the Potomac including Lampsilis and Elliptio. List of caddisflies collected by B. Bauer of BHE Environmental 5/26/99 Protoptila palina Hydropsyche scalaris Cheumatopsyche campyla Hydroptila spatulata Cheumatopsyche sordida Oecetis inconspicua Hydropsyche hageni Triaenodes injustus Hydopsyche phalerata Butterflies (collected 1998, specimens curated at NCTC Lab Building) Summerbrood Hairstreak Everes comyntas comyntas Great Spangled Fritillary Speyeria cybele cybele European Skipper Thymelicus lineola Clouded Sulphur Colias philodice philodice Peck’s Skipper Polites peckius Orange Sulphur Colias eurytheme Meadow Fritillary Boloria bellona bellona Tawny Emporer Asterocampa clyton clyton Grey Hairstreak Strymon melinus humuli Silvery Checkerspot Chlosyne nycteis nycteis Pearl Crescent Phyciodes tharos Silver Spotted Skipper Epargyreus clarus Tiger Swallowtail Papilio glaucus Monarch Danaus plexippus Zebra Swallowtail Eurytides marcellus Other known butterfly species: Mourning Cloak Nymphalis antiopa antiopa Red-spotted Purple Limenitis arthemus astyanax Spicebush Swallowtail Papilio troilus troilus Hackberry Butterfly Asterocampa celtis celtis (there are more than 20 additional species that could be commonly found here, so this list is not yet a representative sample of the butterflies of the area.) A Natural History of NCTC 27 Invertebrates Recorded by Alan Temple’s Macroinvertebrate Ecology and Identification Course in 2002 and 2003: Platyhelminthes Turbellaria (flatworms) Gastropoda Pulmanata Physidae (pond snails) Prosobranchia Pleuroceridae (pleurocerid snails) Bivalvia Unionidae Elliptio (native mussels) Corbiculidae Corbicula fluminea (Asian clam) Arachnida Acariformes Hydracarina (water mites) Crustacea Isopoda Asellidae (aquatic sow bugs) Amphipoda (scuds) Insecta Hemiptera Corixidae (water boatmen) Notonectidae (backswimmers) Nepidae Ranatra (water scorpions) Belostomatidae (giant water bugs) Gerridae (water striders) Coleoptera Gyrinidae (whirligig beetles) Elmidae (riffle beetles) Dytiscidae (predaceous diving beetles) Hydrophilidae (water scavenger beetles) Psephidae (water pennies) Odonata Zygoptera Calopterygidae (broadwinged damselflies) Lestidae (spreadwinged damselflies) Anisoptera Gomphidae (clubtail dragonflies) Aeshnidae (darner dragonflies) Libellulidae (skimmer dragonflies) Plecoptera Perlidae (common stoneflies) Perlodidae (perlodid stoneflies) Ephemeroptera Isonichiidae Isonychia (brushlegged mayflies) Caenidae (small squaregill mayflies) Ephemerellidae A Natural History of NCTC 28 Drunella (spiny crawler mayflies) Heptageniidae (flatheaded mayflies) Potamanthidae (burrowing mayflies) Megaloptera Corydalidae Corydalus (hellgrammites) Trichoptera (caddisflies) Protoptila Cheumatopsyche Hydropsyche Hydroptila Oecetis Triaenodes Diptera Chaoboridae (phantom midges) Culicidae (mosquitoes) Simuliidae (blackflies) Chironomidae (midges) A Natural History of NCTC 29 Fungi identified and collected by WV DNR, June 26-28, 2001 voucher specimens curated at Davis and Elkins College Herbarium Auricularia auricularia Tree-Ear (Jelly Fungi) Bovista sp Puffball Chalciporus rubinellus Purple-red Bolete Cheimonophyllum candidissimus White Oysterette Collybia luxurians (a gilled mushroom) Conocybe lactea White Dunce Cap Coprinus quadrifidus Crepidotus applanatus Flat Crepidotus Crepidotus crocophyllus Crucibulum laeve Bird’s Nest Fungi Daldinia concentrica Carbon Balls, Crampballs Exidia thuretiana (a Jelly Fungi) Gyroporus castaneus Chestnut Bolete Lepiota cristata Malodorous Lepiota Megacollybia platyphylla (a gilled mushroom) Microstoma floccosum [floccosa?] Shaggy Scarlet Cup Phylloporus rhodoxanthus Gilled Bolete Pluteus admirabilis Yellow Pluteus Pluteus atricapillus (P. cervinus) Fawn Mushroom, Deer Mushroom Polyporus mori Polyporus varius Psathyrella candolleana Common Psathyrella Sarcoscypha occidentalis Stalked Scarlet Cup Schizophyllum commune Common Split Gill Scleroderma areolatum Puffball Scutellinia scutellata (a Saucer fungi) Ustulina deusta Carbon Cushion Xerula megalospora (a gilled mushroom) Xerula radicata var. radicata (a gilled mushroom) Xylaria polymorpha Dead Man’s Fingers A Natural History of NCTC 30 Rare, Threatened or Endangered Plants and Animals The Non-Game Wildlife Program of the West Virginia Dept. of Natural Resources has developed a list of species that they are particularly interested in locating and monitoring, either because of rarity, severe population decline, or interest in the actual distribution of difficult to find species. If any of these species are seen, you can contact them at PO Box 67, Elkins, WV 26241, phone number 304-637-0245 The following rare plants have been found at NCTC and already reported: Arabis patens - Rock Cress, on north-facing cliffs Arabis perstellatus – Rock Cress, on north-facing cliffs, creek near treatment plant. Erythronium albidum - White Trout Lily, riparian edge of Potomac For locations of these plants, contact Dan Everson at NCTC. From a protection standpoint, there is more of a concern at NCTC for the small areas that are densely populated with a few individuals of many native species, such as wet areas beside creeks, springs, and the north-east bluff overlooking the river. Be On the Lookout The following vertebrate species can potentially be found in the vicinity of NCTC and are of particular interest to the West Virginia DNR: Fish Satinfin Shiner Notropis analostanus Slimy Sculpin Cottus cognatus Amphibians and Reptiles Jefferson Salamander Ambystoma jeffersonianum Upland Chorus Frog Pseudacris triseriata feriarum Cricket Frog Acris crepitans crepitans Northern Leopard Frog Rana pipiens Spotted Turtle Clemmys guttata Wood Turtle Clemmys insculpta Redbelly Turtle Pseudemys rubriventris rubriventris Broadhead Skink Eumeces laticeps Birds (Note: only nesting activity at NCTC is of interest, since these species can be seen during migration or during long-distance foraging activities). American Bittern Long-eared Owl Least Bittern Bewick’s Wren Black Vulture Sedge Wren Osprey Olive-sided Flycatcher Coopers Hawk Loggerhead Shrike A Natural History of NCTC 31 Northern Harrier Golden-winged Warbler Bald Eagle Dickcissel Peregrine Falcon Bachman’s Sparrow Upland Sandpiper Henslow’s Sparrow Barn Owl Lark Sparrow Mammals Pygmy Shrew Sorex hovi Star-nosed Mole Codylura cristata Eastern Mole Scalopus aquaticus Northern Long-eared Bat Myotis septentrionalis Meadow Jumping Mouse Zapus hudsonius Least Weasel Mustela nivalis A Natural History of NCTC 32 Outdoor Concerns Ticks – deer ticks and dog ticks are present at NCTC and can potentially carry a number of diseases including Lyme Disease; just be aware and check yourself after spending time in unmowed areas during any warm day – winter or summer. They usually take several hours to attach themselves to your skin after they have hitched a ride, giving you a window of opportunity to remove them. Lyme Disease is serious, so it is important to be vigilant (deer ticks are tiny, dog ticks are bigger and easier to detect). If a tick does become attached, make sure you remove it carefully, and wash the site of contact. Lyme disease is easily treated with antibiotics in the early stages, so watch for a reddish circle and inflammation around the area of tick bite and see a doctor if you have any questions. Chiggers – these are the microscopic larval forms of an insect known as the harvest mite. In general they can be found in high grasses and uncut areas between July and September, though we are fortunate that they are infrequently encountered at NCTC. Red, itching dots along your waistband or under the elastic areas of your socks are clues that you may have become part of their food chain. They do not burrow into your skin, as is commonly believed, but instead the redness and inflammation are caused by an allergic reaction to their digestive enzymes. Exposure to ticks and chiggers can be minimized by wearing long pants tucked into socks or boots, and taking a shower soon after spending time in their favored habitats. Snakes – NCTC is potential habitat for copperheads and rattlesnakes, and they are found in the region typically along bluffs and ridges, but neither species has been officially documented here on the NCTC property. Historically a spring nearby was called Rattlesnake Spring, though given that many people call just about any snake a copperhead or rattlesnake, even this reference may be a case of overwrought imagination on the part of someone in the 1830s. Poison Ivy – the most common form here is a vine winding up a tree trunk, though you can also find it as a small woody-stemmed plant about knee high mixed in with other forbs, grasses, and shrubs. The plant is relatively uncommon at NCTC. Watch for a grayish, hairy vine, perhaps with white berries. In summer the leaves will be in 3’s, with a characteristic waxy looking sheen. The tell-tale symptoms of skin bubbling and intense itching may not show up for several days after exposure, depending on your level of reaction to the irritant. The skin irritant is urushiol, an oil which can be cleaned off with commercial products such as TecNu, or with other products that break down oils (unfortunately soaps don’t seem to work effectively for many people – washing your hands with a mild soap may only serve to spread the oil around, depending on the level of reaction you have to the irritant; note that the active ingredient of TecNu, is paint thinner).
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Rating | |
Title | Natural history of the National Conservation Training Center property |
Contact |
mailto:library@fws.gov |
Creator | Everson, Dan |
Description | This publication is designed to introduce visitors to the plants and animals that can be found at the National Conservation Training Center (NCTC) in Shepherdstown, West Virginia. Plants, mammal, birds, amphibians and reptiles, various invertebrates and ma |
Subject |
Education Habitat conservation Wildlife management |
Location |
West Virginia |
FWS Site |
NATIONAL CONSERVATION TRAINING CENTER |
Publisher | U.S. Fish and Wildlife Service |
Date of Original | 2004 |
Type |
Text |
Format | |
Item ID | http://library.fws.gov/NCTCPubs/NCTC_Natural_History04.pdf |
Source |
NCTC Conservation Library |
Language | English |
Rights | Public domain |
Audience | General |
File Size | 489 KB |
Original Format |
Document |
Length | 32 p. |
Transcript | A Natural History of the National Conservation Training Center Property By Dan Everson Branch of Aquatic Resources - USFWS NCTC Update February 2004 This publication is designed to introduce visitors to the plants and animals that can be found at the National Conservation Training Center (NCTC). The campus itself comprises a little over a hundred acres, leaving more than 400 acres to be explored and enjoyed by those willing to get out of the buildings and onto the trails. Natural habitats include open fields and meadows, patches of deciduous forest in various successional stages, the riparian edge of the Potomac River, springs, creeks and ponds, small wetlands, and moss-covered limestone cliffs scattered with an ever-changing kaleidoscope of native spring wildflowers. Plant and animal communities here have both a northern and southern component, with many species from both zones at the limits of their ranges. Several factors facilitate migration of species to this area. Wooded ridges extending north into Pennsylvania and south into Virginia act as migration corridors for both plants and animals, and the Potomac River and its relatively intact riparian edge form a natural migration corridor for migrant birds and other species. The towpath of the C & O Canal National Historical Park on the opposite side of the river creates a trail more than one hundred eighty miles in length allowing mammals such as bobcats, coyotes and black bears to occasionally travel through the area Please note that some plant communities are relatively rare, with only a few individuals of several species occurring here. So please do not collect flowers or other plant parts. Regional Setting NCTC is located on the eastern edge of the Ridge and Valley physiographic province, which is characterized by long ridges of resistant sedimentary rock trending NE-SW alternating with linear valleys composed of softer sedimentary rock. NCTC lies within a long trough just west of the Blue Ridge formed from the more easily eroded limestones and shales known as the Great Valley, a geologic feature that extends from New York to Alabama. The valley culturally goes by several names, but in Virginia and West Virginia it is called the Shenandoah Valley, named for the major river that flows in a northeasterly direction down the valley until it meets the Potomac River at Harpers Ferry. Technically the Shenandoah Valley should extend northward only to Harpers Ferry, about 10 miles south of NCTC, where the combined waters of the Shenandoah and Potomac Rivers travel through a gap in the Blue Ridge, but local convention extends the Shenandoah Valley a few miles north until it comes under the political jurisdiction of Maryland, where it becomes the Hagerstown Valley. The Potomac River, which forms about two miles of A Natural History of NCTC 2 NCTC’s northern boundary, cuts “across the grain” of the geologic units in this region, a hint that the river’s ancient course was established before the current landforms were created by millions of years of differential erosion. Elevations at NCTC range from about 300 feet above sea level on the north side of the property adjacent to the river, to just over 440 feet on the southern side of the property. Because the present landscape has remained above sea level since before the Age of Dinosaurs, plant and animal species have migrated here and evolved in place over a period of more than 200 million years. The last great pulse of glacial ice in the northern hemisphere left its terminal moraine about a hundred miles to the north in Pennsylvania, but the resulting cooler climate had a lasting impact on the plant communities in the region. Boreal species commonly found in Canada today dominated this area as little as 8000 years ago, about the time the first evidence of human habitation is found in this region; remnants of these post-Pleistocene plant communities can still be found in the higher elevations of West Virginia. The native mesic hardwood forest plant communities seen here today can be considered a somewhat random collection of plants that have either survived the cooler temperatures of the Ice Ages or successfully invaded the countryside in the meantime taking advantage of the gradually warming climate. The valleys of the Potomac and Shenandoah Rivers have formed natural migration corridors for southern and coastal species extending their ranges northward. The rivers have also aided in the spread of invasive exotics such as garlic mustard, which was relatively rare 30 years ago but is widespread throughout the region today. In the last 250 years the influx of a European culture and its associated plants has had a very strong impact on the species composition of the herbaceous and shrub layers of the area, with about half of the plant species found at NCTC being considered non-native to this area. Nearly all of the larger tree species found today were present before the arrival of Europeans (an exception is Ailanthus, or Tree of Heaven, an invasive exotic notoriously difficult to eradicate that first arrived here in serious numbers in the last quarter of the 20th century.) Climate Mean annual precipitation in the eastern panhandle of West Virginia is approximately 102 cm/yr (40 in/yr). Because the region lies in the rain shadow of the Alleghenies to the west, precipitation is slightly lower than the rest of West Virginia. Summer temperatures average about 38° C (73 F) while winter temperatures average about 13° C (25 F) with 120-150 days of below freezing temperatures annually. The length of time that the ground is covered by snow any given year could be several hours to several months. A Natural History of NCTC 3 Geology and Soils The NCTC property is underlain by a geologic unit known as the Conococheague Limestone, a moderately folded and metamorphosed, sparsely fossiliferous carbonate of late Cambrian / early Ordovician age. Chemically it is dominated by calcium and magnesium carbonates, and contains occasional shaly or sandy layers. The strike of the bedding planes and rock outcrops is generally oriented about N15E. The limestone bedrock is susceptible to sinkholes, fissures and solution cavities. More resistant layers within this limestone have formed a bedrock sill and island in the Potomac River north of the campus. Rounded cobbles and gravels of quartzite can commonly be found along the upper river terrace, deposited more than 30,000 years ago when the base level of the Potomac was at this elevation, eroding the resistant silica-rich ridges to the west. Based on the mapped distribution of these quartzite deposits, the Potomac River has largely stayed within or very near its present channel near NCTC for more than 50,000 years, the elevation largely controlled by a series of bedrock sills. In upland areas, fairly rich red clay-loam soils have developed in place from the underlying parent material, while the floodplains and benches near the Potomac are composed of fine-grained alluvial soils. The carbonate-derived soils tend to be higher in pH than the more acidic soils of the Blue Ridge and other nearby ridges, which have formed from rock with a higher silica content. This explains why some regionally common species such as white pine, mountain laurel, scarlet oak, and American holly do not occur here in naturally growing stands, although they may sometimes be successfully planted. Land Use History In the western United States, plant distributions and patterns can often be best explained by ecological factors such as moisture gradients, elevation, or geology. A glance out the window of an airplane flying over the mid-Atlantic region is all the evidence you need that there are other factors at play here to account for the fanciful patterns of plants across the landscape. The pattern of plant distributions at NCTC, like much of the land east of the 100th meridian, is most strongly correlated with past and present human landscape management practices Archeological evidence has shown that Native Americans used the property at least seasonally for more than 8000 years. The most recent evidence for occupation dates to about 400 years before the arrival of Europeans. Cultural practices such as the use of fire and the growing of crops such as corn and squash no doubt had a significant influence on the plant communities that were established here by the 1700s. Europeans first began developing plantation agriculture on the property that became NCTC in the early 1730s. Trees specifically mentioned on early land surveys for the property in the eighteenth century include white oak, red oak, black oak, hickory, black walnut, elm, boxelder, honey locust, sugar maple, and ash – all trees that still exist on the property today. The A Natural History of NCTC 4 presence of these trees in the early surveys shows that the property was at least partly forested when Europeans first arrived. In 1734 the property was included as part of one of the very first King’s Patents issued in the region, suggesting that the earliest settlers, who could pick from among the choicest properties, found something very attractive here. Since the earliest colonists had to quickly establish forage and cash crops for survival, they were unlikely to have chosen land in continuous closed canopy forest (why spend months or years cutting down trees if you don’t have to?). It seems probable the landscape was a mix of meadow and scattered groups of trees. Fire and grazing by herds of buffalo and elk likely helped to maintain a more open landscape, just as they did a few miles to the west on the open prairie of the Shenandoah Valley. The center of the Shenandoah Valley was (and is) more likely to retain an open sparsely wooded landscape because of poorer soils derived from the underlying Martinsburg Shale, an area the early colonists referred to as the “barrens”. The first European visitors to Terrapin Neck, however, would have been more apt to encounter forested areas because of the richer soils, and thus any openings in the forest would necessarily have required the presence of frequent fires or grazing to remove fast-growing woody species. Since the 1730s, crops have included tobacco, wheat, corn and various grain crops as well as flax, hemp, hay, and apple orchards. Farm animals were raised here continuously for nearly 250 years and included cattle, sheep, horses, and hogs. Most trees that were standing in the 1730s were probably removed before 1800; the same fields have been farmed as crops or pasture ever since, although several changes in the locations of fencelines have occurred over the years. Various small remnant patches of forest in rockier, less accessible areas have been selectively cut or clearcut for firewood, fencing, or lumber for more than 200 years. Much of the area surrounding the campus now forested with sycamore, tulip poplar and boxelder was an open pasture in 1938. The only extensive patches of trees on the property more than 100 years old are located on the narrow, steep slope north of the campus buildings overlooking the river, and a rocky strip along Terrapin Neck road. These older forest patches (counts of tree rings on some of the older-looking trees suggest they were saplings in the 1880s) have been selectively cut over the years but still retain the highest concentration of native forbs and shrubs in the understory. Grazing in the pastures and woodlands by beef cattle ended about 1995; since then succession has created a brambly understory of multiflora rose, ailanthus, Japanese honeysuckle and various European annuals. During facility construction care was taken to save many small patches of overstory trees but edge effects from disturbance and increased sunlight have created impenetrable thickets of invasive exotics along the edges of most of these remnant patches. A Natural History of NCTC 5 Habitat Types The following section describes some general vegetative habitat types at NCTC. More detailed information can be found on the Geographical Information System (GIS) developed by NCTC’s Technical Training Branch. Mapping of plant units on the property was accomplished in 1997 for the use of the GIS courses at NCTC using several classification schemes, including the Anderson Land Use / Land Cover classification, the Society of American Foresters classification, and the National Vegetation Classification System. In this document, vegetation will be described in more general terms, including the location and primary species composition. A plant list for the property is included in a later section. Older Forest The older forest community occurs on the edges of NCTC, including the north-facing slopes and ravines overlooking the river, along the Terrapin Neck road property boundary, and along the western fenceline of the property. The boundaries of this forest type today correlate well with those areas under forest canopy in a 1938 aerial photo. Tree ring cores taken from several of the larger trees suggest some of the trees were established in the 1870s. The overall species composition of this forest type is very diverse and contains the highest concentration of native species. The dominant overstory trees include black oak, red oak, bitternut hickory, green ash, black walnut, sugar maple, American elm, and hackberry. Common understory trees include pawpaw, sugar maple, and flowering dogwood, with redbud near the sunnier edges. Characteristic understory shrubs include spicebush, blackhaw and several invasive exotics including multiflora rose, tartarian honeysuckle and wineberry. Along Terrapin Neck road and the north-facing slope overlooking the river the understory herbaceous plants exhibit a fairly high percentage of native species, including spring wildflowers such as mayapple, ramp (wild leek), squirrel corn, dutchman’s breeches, twinleaf, wild ginger, cut-leaf toothwort, spring beauty, trillium and yellow trout lily. The western fenceline tends to have fewer native herbaceous plants because of recent grazing by beef cattle, but it does contain a nice stand of older beech trees. A Natural History of NCTC 6 In the forested areas that were grazed or otherwise disturbed in more recent times the understory herbaceous plants tend to be composed of white snakeroot, and exotics such as Indian strawberry, Japanese stilt grass, chickweed, and beefstake plant. The edges of this forest type, including the interior gaps that allow increased sunlight, are commonly overgrown with vines and shrubs including natives such as wild grape, Virginia creeper, greenbriar and poison ivy, and invasive exotics such as Japanese honeysuckle, young ailanthus trees, multiflora rose and wineberry. Because these forest patches were selectively cut and occasionally grazed by beef cattle over the years, and have a high edge-to-area ratio, they commonly take on many of the characteristics of a younger, more highly disturbed forest. The steep ravines and slopes in the northeast corner of NCTC and portions of the woods along Terrapin Neck road have the most intact native species composition. Younger Forest The younger forested areas at NCTC correlate well with those areas now forested, but were open pasture or croplands in a 1938 aerial photo. These areas have grown nearly as tall or taller than the older forest patches and in some areas have a nearly closed canopy, but can still be recognized by the tree and understory species composition. Dominant overstory tree species include sycamore, tulip poplar, and black walnut, while the understory trees include a high percentage of boxelder and pawpaw. Occasional patches of red cedar struggling to survive in the shade give evidence of more recent sunny conditions. Shrubs and vines often make it difficult to walk in these areas – the increased availability of sunlight from a relatively open canopy, trails and other edges often create a jungle of spicebush, multiflora rose, wineberry, Japanese honeysuckle, poison ivy, wild grape, greenbriar and Virginia creeper. Paths and edges in the shadier portions are often lined with herbaceous plants such as white snakeroot, Japanese stilt grass, smartweed, beefsteak plant and clearweed. The sunnier edges take on the herbaceous species composition of a meadow, commonly including several species of goldenrod, wingstem, American germander, orchard grass and tall fescue. The herbaceous understory is composed of a lower percentage of native plants; native spring wildflowers are often difficult to find. Old Field Old fields can be divided into three types at NCTC: the upland old fields, the riverbottom old fields, and the old fields that were planted in native warm season grasses in May A Natural History of NCTC 7 1999. The area south of the NCTC campus along the entrance road that is managed as open grassland is one of the main locations for the upland old field habitat type, although there are several smaller patches on the western side of the property. Orchard grass and tall fescue, along with several other grasses including purple top, Kentucky bluegrass, broomsedge, yellow foxtail, timothy and barnyard grass dominate the species composition. Other common herbaceous species include dandelion, chickory, common fleabane, moth mullein, nodding thistle, bull thistle, Queen Anne’s lace, field cress and black medic. Old fence lines and rock outcrops have allowed trees such as ailanthus, red cedar, boxelder, black locust, black cherry, and hackberry to become established in small, linear patches. Common woody invaders that have started to become established in the fields include multiflora rose, autumn olive, boxelder, and red cedar. The old fields in the bottomland next to the Potomac, last plowed in 1997, are rapidly undergoing succession, with boxelder, silver maple, and green ash becoming established near the riparian zone (the area just east of the boatramp has been mowed several times in the last few years and is in an earlier stage of succession). Common understory plants include many of those listed above, but additionally include a high percentage of such species as annual wormwood, Canada thistle, wingstem, several species of goldenrod, and curly dock. Near the riparian edge Virginia wild rye is common. Following an application of glyphosate herbicide, twenty-six acres were planted in native warm season grasses in spring 1999. The first field, adjacent to Shepherd Grade south of the NCTC entrance, was last planted in corn in 1998, while a second field, just above it on the hillside, was planted in oats in 1998. A small 5 acre field just south of Instructional West was an old pasture split by a fence, since removed, that was first A Natural History of NCTC 8 planted after disking and an herbicide treatment in a non-native wildflower and grass mix about 1997, but it instead became an impenetrable mass of nodding thistle and bull thistle over most of the acreage (the seed mix was successfully established only in the lower western slope of this field). All three fields in 1999 were planted with a native seed mix including big bluestem, little bluestem, Indian grass, gamma grass, switchgrass, and side-oats gramma, with a native wildflower seedmix containing mostly black-eyed Susan and coreopsis. Several months of severe drought followed planting, which slowed the initial establishment, but by summer 2001 the two larger fields near the entrance were largely successful, while the smaller field next to campus at first had a high concentration of yellow foxtail and barnyard grass that overwhelmed about half of the field; by summer 2003 the native seed mix was much more prominent. Riparian The riparian community can be found along the relatively steep north-facing riverbank directly adjacent to the Potomac River. The plant community here is composed of species tolerant of the frequency and magnitude of Potomac River flood events. A close inspection reveals that the riverbank is “stepped” about halfway down. The “step” is referred to as the height of the bankfull channel and marks the height of the river when it is most efficient at moving sediment; this is also referred to as the channel forming discharge. The area below the step and above the wetted perimeter is considered part of the active channel, which experiences fairly frequent flood events. On average the river reaches the height of the bankfull channel – the “step” – about every 1.5 years. The broad flat bench south of the riverbank once used for crops is an old floodplain or bench, with flood frequency probabilities over the hundred-year range. The most common trees in the riparian zone are primarily flood tolerant species. Below the bankfull stage height, the most common species by far are boxelder (dominant in terms of numbers of individuals), silver maple (dominant in terms of basal area, or biomass), and sycamore. Above the bankfull discharge height, additional species include pawpaw, American elm, green ash, hackberry, and black walnut. The commonest shrubs include spicebush and bladderpod. Common herbaceous plants include Virginia wild rye, wood nettle, gill-oer-the-ground, jewelweed and garlic mustard. Spring wildflowers include the non-native star of Bethlehem, and natives such as yellow trout lily, white trout lily, wild ginger, and Virginia bluebells. A Natural History of NCTC 9 Springs, Creeks and Ponds There are both intermittent and perennial springs forming small creeks on the NCTC property. The water is “hard”, leaving calcium carbonate deposits (travertine) on the creek bottoms especially where small waterfalls aerate the water. The creek entering the Potomac west of the boatramp originates on the lower slope of the hillside below the ruins of RiverView Farm, and several other locations downstream. This creek is intermittent and only flows at its lower end during hot and dry weather. Summer temperatures are in the 14-16° C (57-61° F) range, with pH between 8 and 8.5, and dissolved oxygen between 5 and 9 ppm. Conductivity is in the 600-700 μS range, and is relatively higher than the other creek because of lower water volumes and perhaps longer residence time in the substrate. The creek near the Springwood estate begins in several adjacent perennial springheads that feed into a shallow pond excavated in the mid-20th century. The pond changes the chemical nature of the water in the stream below, with summer temperatures in the 18- 22° C (64-72° F) range, and pH slighter higher in the 8.5 to 8.9 range because of the increased primary productivity using up the available carbon dioxide. Summer daytime dissolved oxygen levels are about the same as the other creek, in the 5-9 ppm range, and conductivity is somewhat lower, in the 400-600 μS range. No fish have been collected in these spring-fed creeks, but snapping turtles, wood turtles and various amphibians have been found there. Three storm water management ponds were built during the construction of NCTC that hold water year round. In just a few years they have attracted a number of frog, toad and salamander species, aquatic and wetland plants and insects. Problematic species that have required some control measures include the phragmites that is prominent in the pond near the Daycare center. Summer temperatures, water volumes, and resulting water chemistry limit the survival of some species in these ponds. Daytime water temperatures can be nearly 90° F during the hottest part of the summer. Primary productivity is high during the day because of the algae and other aquatic plants, leading to supersaturated dissolved oxygen levels and a pH greater than 10. At night pH levels drop and dissolved oxygen levels are reduced to zero, creating a rather harsh chemical environment for many aquatic species. Conductivity of the pond water is typically in the 100-200 μS range, a result of its stormwater derivation and the clay liner that limits contact with the underlying carbonate substrate. A Natural History of NCTC 10 The Potomac River in the summer has a pH of about 7.5-8, in the winter it is between 6 and 7. Summer specific conductivity is in the 200-400 μS range. Summer temperatures can be very warm during low flow; for example in 1999 summer daytime temperatures monitored in the river adjacent to NCTC ranged from 24 to 32° C (75-90 F); this was a year of severe drought when the hydrograph went one direction – down – from May through August. Wetlands Wetlands at NCTC are located in small pockets adjacent to the two creeks where topographic relief allows the water to spread out a few tens of feet to the side. The species composition tends to be high in natives, though there are often just a few individuals of each species present. Collection of plants from these areas, therefore, should be avoided, as you may remove the only individuals growing here. Some characteristic species include New York ironweed, ditch stonecrop, rattlesnake mannagrass, rice cutgrass, and several species of carex and scirpus. Small, scattered patches of wetland plants (mostly facultative) can be found on the river terrace and near small seeps. A Natural History of NCTC 11 NCTC Plant List Trees COMMONNAME GENUS SPECIES FAMILY NATIVE Boxelder Acer negundo Aceraceae native Sugar Maple Acer saccharum Aceraceae native Silver Maple Acer saccharinum Aceraceae native Black Maple Acer nigrum Aceraceae native Tree of Heaven Ailanthus altissima Simaroubacea e alien Paw-Paw Asimina triloba Annonaceae native Sweet Birch Betula lenta Corylaceae native River Birch Betula nigra Corylaceae native Shagbark Hickory Carya ovata Juglandaceae native Pignut Hickory Carya glabra Juglandaceae native Bitternut Hickory Carya cordiformis Juglandaceae native Hackberry Celtis occidentalis Ulmaceae native Redbud Cercis canadensis Leguminosae native Flowering Dogwood Cornus florida Cornaceae native American Beech Fagus grandifolia Fagaceae native Green Ash Fraxinus pennsylvanica Oleaceae native White Ash Fraxinus americana Oleaceae native Honey Locust Gleditsia triacanthos Leguminosae native Black Walnut Juglans nigra Juglandaceae native Red Cedar Juniperus virginianus Cupressaceae native Tulip Poplar Liriodendron tulipifera Magnoliaceae native Cucumber Tree Magnolia acuminata Magnoliaceae native White Mulberry Morus alba Moraceae alien Virginia Pine Pinus virginiana Pinaceae native Pitch Pine Pinus rigida Pinaceae native White Pine Pinus strobus Pinaceae native Sycamore Platanus occidentalis Platanaceae native Bigtooth Aspen Populus grandidentata Salicaceae native Cottonwood Populus deltoides Salicaceae native Black Cherry Prunus serotina Rosaceae native Sweet Cherry Prunus avium Rosaceae alien Wild Crabapple Pyrus coronaria Rosaceae native Scarlet Oak (?) Quercus coccinea Fagaceae native Chinquapin Oak Quercus muhlenbergii Fagaceae native Red Oak Quercus rubra Fagaceae native Chestnut Oak Quercus prinus Fagaceae native Black Oak Quercus velutina Fagaceae native White Oak Quercus alba Fagaceae native Black Locust Robinia pseudo-acacia Leguminosae native Sassafras Sassafras albidum Lauraceae native Basswood Tilia americana Tiliaceae native Slippery Elm Ulmus rubra Ulmaceae native American Elm Ulmus americana Ulmaceae native A Natural History of NCTC 12 Shrubs COMMONNAME GENUS SPECIES FAMILY NATIVE Prickly Gooseberry Ribes cynosbati Saxifragaceae native Staghorn Sumac Rhus typhina Anacardiaceae native Jetbead Rhodotypos scandens Rosaceae alien Elderberry Sambucus canadensis Caprifoliaceae native Multiflora Rose Rosa multiflora Rosaceae alien Witch Hazel Hamamelis virginiana Hamamelidace ae native Wild Hydrangea Hydrangea arborescens Saxifragaceae native Spicebush Lindera benzoin Lauraceae native Bladderpod Staphylea trifolia Staphyleaceae native Autumn Olive Elaeagnus umbellata Eleagnaceae alien Blackhaw Viburnum prunifolium Caprifoliaceae native Tartarian Honeysuckle Lonicera tartarica Caprifoliaceae alien Grasses COMMONNAME GENUS SPECIES FAMILY NATIVE Colonial Bent Grass Agrostis tenuis Poaceae native Broomsedge Andropogon virginicus Poaceae native Big Bluestem* Andropogon gerardi Poaceae native Little Bluestem* Andropogon scoparius Poaceae native Sweet Vernal Grass Anthoxanthum odoratum Poaceae alien Small Carp Grass Arthraxon hispidus Poaceae alien Oats Avena sativa Poaceae alien Side-oats Grama* Bouteloua curtipendula Poaceae native Long-awned Wood Grass Brachyeletrum erectrum Poaceae native Brome Grass Bromus tectorum Poaceae alien Brome Grass Bromus inermis Poaceae alien Bermuda Grass Cynodon dactylon Poaceae alien Orchard Grass Dactylus glomerata Poaceae alien Smooth Crabgrass Digitaria ischaemum Poaceae alien Crabgrass Digitaria sanguinalis Poaceae alien Barnyard Grass Echinochloa crusgalli Poaceae alien Goose Grass Eleusine indica Poaceae alien Wild Rye Elymus villosus Poaceae native Canadian Rye Elymus canadensis Poaceae native Virginia Wild Rye Elymus virginicus Poaceae native Frank’s Love Grass Eragrostis frankii Poaceae native Tall Fescue Lolium arundinaceum Poaceae alien Rattlesnake Mannagrass Glyceria canadensis Poaceae native Fowl Mannagrass Glyceria striata Poaceae native Bottlebrush Grass Elymus hystrix Poaceae native White Grass Leersia virginica Poaceae alien Rice Cutgrass Leerzia orizoides Poaceae alien A Natural History of NCTC 13 Italian Rye Grass Lolium multiflorum Poaceae alien Perennial Rye Lolium perenne Poaceae alien Two-flower Melica Melica mutica Poaceae native Japanese Stilt Grass Microstegium viminium Poaceae alien Wood Witch Grass Panicum philadephicum Poaceae native Switch Grass* Panicum virgatum Poaceae native Timothy Phleum pratense Poaceae alien Phragmites Phragmites communis Poaceae native Kentucky Bluegrass Poa pratensis Poaceae alien Rye Grass Secale cereale Poaceae alien Yellow Foxtail Setaria glauca Poaceae alien Foxtail Setaria faberii Poaceae alien Indian Grass* Sorghastrum nutans Poaceae native Johnson Grass Sorghum halapense Poaceae alien Dropseed Sporobolus vaginiflorus Poaceae native Purpletop Tridens flavum Poaceae native Wheat Triticum aestivum Poaceae alien * Denotes those grasses that were planted on about 26 acres in 1999 and now established. Forbs COMMONNAME GENUS SPECIES FAMILY NATIVE Velvet-leaf Abutilon theophrasti Malvaceae alien Wingstem Actinomeris alternifolia Asteraceae native Tall Agrimony Agrimonia gryposepala Rosaceae native Garlic Mustard Alliaria officinalis Cruciferae alien Meadow Garlic Allium canadense Liliaceae native Wild Leek Allium tricoccum Liliaceae native Green Amaranth Amaranthus retroflexus Amaranthacea e alien Giant Ragweed Ambrosia trifida Asteraceae native Ragweed Ambrosia artemisiifolia Asteraceae native Common Pimpernel Anagallis arvensis Primulaceae alien Rue-anemone Anemonella thalictroides Ranunculacea e native Mayweed Anthemis cotula Asteraceae alien Puttyroot Aplectrum hyemale Orchidaceae native Indian Hemp Apocynum cannabinum Apocynaceae native Wild Columbine Aquilegia canadensis Ranunculacea e native Spreading Rockcress Arabis patens Cruciferae native (rare) Rockcress Arabis perstellatus Cruciferae native (rare) Smooth Rock Cress Arabis laevigata Cruciferae native Burdock Arctium minus Asteraceae alien Jack-in-the-Pulpit Arisaema atrorubens Araceae native Mugwort Artemisia vulgaris Asteraceae alien Annual Wormwood Artemisia annua Asteraceae alien Wild Ginger Asarum canadense Aristolochiacea native A Natural History of NCTC 14 Green-flowered Milkweed Asclepias viridiflora Asclepiadacea e native Common Milkweed Asclepias syriaca Asclepiadacea e native Butterfly Weed Asclepias tuberosa Asclepiadacea e native White Wood Aster Aster divaricatus Asteraceae native Bushy Aster Aster dumosus Asteraceae native Calico Aster Aster lateriflorus Asteraceae native Lowrie’s Aster Aster lowrieanus Asteraceae native Short's Aster Aster shortii Asteraceae native Small White Aster Aster vimineus Asteraceae native Heath Aster Aster pilosus Asteraceae native Wild Indigo Baptisia tinctoria Leguminosae native Early Winter Cress Barbarea verna Cruciferae alien Winter Cress Barbarea vulgaris Cruciferae alien Larger Bur Marigold Bidens leavis Asteraceae native Begger Ticks Bidens frondosa Asteraceae native False Nettle Boehmeria cylindrica Urticaceae native Tall Bellflower Campanula americana Campanulacea e native Shepherd's Purse Capsella bura-pastoris Cruciferae alien Hairy Bittercress Cardamine hirsuta Cruciferae native Common Thistle Carduus acanthoides Asteraceae alien Musk Thistle Carduus nutans Asteraceae alien Blue Cohosh Caulophyllum thalictroides Berberidaceae native Yellow Star Thistle Centaurea solstitialis Asteraceae alien Brown Knapweed Centaurea jacea Asteraceae alien Mouse-Ear Chickweed Cerastium vulgatum Caryophyllacea e alien Celandine Chelidonium majus Papaveraceae alien Turtlehead Chelone glabra Scrophulariace ae native Lamb's-quarters Chenopodium album Chenopodiace ae alien Skeleton-weed Chondrilla juncea Asteraceae alien Ox-eye Daisy Chrysanthemu m leucanthemum Asteraceae alien Chicory Cichorium intybus Asteraceae alien Black Cohosh Cimicifuga racemosa Ranunculacea e native Enchanter's Nightshade Circaea quadrisulcata Chenopodiace ae native Bull Thistle Cirsium vulgare Asteraceae alien Canada Thistle Cirsium arvense Asteraceae alien Spring Beauty Claytonia virginica Portulacaceae native Horse-balm Collinsonia canadensis Scrophulariace ae native Asiatic Dayflower Commelina communis Commelinacea e alien Poison Hemlock Conium maculatum Umbelliferae alien Cancerroot Conopholis americana Orobanchacea e native Hare's-Ear Mustard Conringia orientalis Cruciferae alien Hedge Bindweed Convulvulus sepium Convulvulacea e native Lance-leaved Tickseed Coreopsis lanceoloata Asteraceae native Yellow Corydalis Corydalis flavula Fumariaceae native Honewort Cryptotaenia canadensis Umbelliferae native Tarweed Cuphea petiolata Lythraceae native Jimsonweed Datura stramonium Solanaceae native Queen Anne's Lace Daucus carota Umbelliferae alien A Natural History of NCTC 15 Dwarf Larkspur Delphinium tricorne Ranunculacea e native Cut-Leaved Toothwort Dentaria laciniata Cruciferae native Tick-trefoil Desmodium perplexum Leguminosae native Tick-trefoil Desmodium paniculatum Leguminosae native Tick-trefoil Desmodium glutinosum Leguminosae native Hoary Tick-Trefoil Desmodium canascens Leguminosae native Deptford Pink Dianthus armeria Caryophyllacea e alien Dutchman's Breeches Dicentra cucullaria Fumariaceae native Squirrel Corn Dicentra canadensis Fumariaceae native Shooting Star Dodecatheon meadia Primulaceae native Indian Strawberry Duchesnea indica Rosaceae alien Viper's Bugloss Echium vulgare Boraginaceae alien Ellisia Ellisia nyctelea Hydrophyllacea e native Purple-leaved Willow Herb Epilobium coloratum Onagraceae native Northern Willow Herb Epilobium glandulosum Onagraceae native Harbinger of Spring Erigenia bulbosa Umbelliferae native Daisy Fleabane Erigeron annuus Asteraceae native Horseweed Erigeron canadensis Asteraceae native Common Fleabane Erigeron philadelphicus Asteraceae native Daisy Fleabane Erigeron strigosus Asteraceae native Trout Lily Erythronium americanum Liliaceae native White Trout Lily Erythronium albidum Liliaceae native Boneset Eupatorium perfoliatum Asteraceae native Spotted Joe-Pye Weed Eupatorium maculatum Asteraceae native White Snakeroot Ageretina altissima Asteraceae native Mistflower Conoclinium coelestinum Asteraceae native Late Flowering Thoroughwort Eupatorium serotinum Asteraceae native Cyperus Spurge Euphorbia cyparissias Euphorbiaceae alien Spotted Spurge Euphorbia maculata Euphorbiaceae alien False Mermaid Weed Floerkea proserpinacoid es Limnanthaceae native Woodland Strawberry Fragaria vesca Rosaceae alien Galinsoga Galinsoga ciliata Asteraceae alien Fragrant Bedstraw Galium triflorum Rubiaceae native Hairy Bedstraw Galium pilosum Rubiaceae native Long-stalked Cranesbill Geranium columbinum Geraniaceae alien Small-flowered Cranesbill Geranium pusillum Geraniaceae alien White Avens Geum canadense Rosaceae native Rough Avens Geum virginianum Rosaceae native Gill-over-the-ground Glechoma hederacea Labiatae alien Cudweed Gnaphalium obtusifolium Asteraceae native Virginia Stickseed Hackelia virginiana Boraginaceae native Sneezeweed Helenium autumnale Asteraceae native Thin-leaved Sunflower Helianthus decapetalus Asteraceae native Rough Ox-eye Heliopsis scabra Asteraceae native Ox Eye Daisy Heliopsis helianthoides Asteraceae native Day Lily Hemerocallis fulva Liliaceae alien Round-lobed Hepatica Hepatica americana Ranunculacea e native Dame's Rocket Hesperis matronalis Cruciferae alien A Natural History of NCTC 16 Flower-of-an-Hour Hibiscus trionum Malvaceae alien Virginia Waterleaf Hydrophyllum virginianum Hydrophyllacea e native Common St. Johnswort Hypericum perforatum Guttiferae alien Spotted St. Johnswort Hypericum punctatum Guttiferae native Dwarf St. Johnswort Hypericum mutilum Guttiferae native Jewelweed Impatiens capensis Balsaminaceae native Pale Touch-Me-Not Impatiens pallida Balsaminaceae native Ivy-Leaved Morning-Glory Ipomea hederacea Convulvulacea e alien Twinleaf Jeffersonia diphylla Berberidaceae native Water Willow Justicia americana Acanthaceae native Prickly Lettuce Lactuca scariola Asteraceae alien Wood Nettle Laportea canadensis Urticaceae native Motherwort Leonurus cardiaca Labiatae alien Field Cress Lepidium campestre Cruciferae alien Bushclover Lespedeza intermedia Leguminosae native Butter-and-eggs Linaria vulgaris Scrophulariace ae alien False Pimpernel Lindernia dubia Scrophulariace a native Cardinal Flower Lobelia cardinalis Lobeliaceae native Great Lobelia Lobelia syphilitica Lobeliaceae native Indian Tobacco Lobelia inflata Lobeliaceae native Spiked Lobelia Lobelia spicata Lobeliaceae native White Campion Lychnis alba Caryophyllacea e alien Northern Bugleweed Lycopus uniflora Labiatae native Moneywort Lysimachia nummularia Primulaceae alien Fringed Loosestrife Lysimachia ciliata Primulaceae native White Sweetclover Melilotus alba Leguminosae alien Yellow Sweetclover Melilotus officinalis Leguminosae alien Virginia Bluebell Mertensia virginica Boraginaceae native Bishop's Cap Mitella diphylla Saxifragaceae native Wild Bergomot Monarda fistulosa Labiatae native Indian Pipe Monotropa uniflora Pyrolaceae native Watercress Nasturtium officianale Cruciferae alien Catnip Nepeta cataria Labiatae alien Common Evening Primrose Oenothera biennis Onagraceae native Northern Evening Primrose Oenothera parviflora Onagraceae native White Evening Primrose Oenothera speciosa Onagraceae native Star-of-Bethlehem Ornithogalum umbellatum Liliaeae alien Sweet Cicely Osmorhiza claytoni Umbelliferae native Yellow Wood Sorrel Oxalis europaea Oxalidaceae native Yellow Wood-Sorrel Oxalis stricta Oxalidaceae native Poppy Papaver dubium Papaveraceae alien Ditch Stonecrop Penthorum sedoides Saxifragaceae native Beefsteak Plant Perilla frutescens Labiatae alien Mountain Phlox Phlox ovata Polemoniaceae native Blue Phlox Phlox divaricata Polemoniaceae native Lopseed Phryma leptostachya Phrymaceae native Smooth Ground Cherry Physalis subglabrata Solanaceae native Common Ground-cherry Physalis heterophylla Solanaceae native A Natural History of NCTC 17 Pokeweed Phytolacca americana Phytolaccacea e native Clearweed Pilea pumila Urticaceae native Common Plantain Plantago rugellii Plantaginaceae native Common Plantain Plantago major Plantaginaceae alien English Plantain Plantago lanceolata Plantaginaceae alien Mayapple Podophyllum peltatum Berberidaceae native Solomon's Seal Polygonatum canaliculatum Liliaceae native Mild Water Pepper Polygonum hydropiperoide s Polygonaceae native Water Smartweed Polygonum coccineum Polygonaceae native Dock-leaved Smartweed Polygonum lapathifolium Polygonaceae native Ladies Thumb Polygonum persicaria Polygonaceae alien Water Smartweed Polygonum punctatum Polygonaceae native Asiatic Water Pepper Polygonum cespitosum Polygonaceae alien Large-flowered Leafcup Polymnia uvedalia Asteraceae native Rough-fruited Cinquefoil Potentilla recta Rosaceae alien Rough Cinquefoil Potentilla norvegica Rosaceae native Tall Cinquefoil Potentilla arguta Rosaceae native Self-Heal Prunella vulgaris Labiatae native Swamp Buttercup Ranunculus septentrionalis Ranunculacea e native Crowfoot Ranunculus abortivus Ranunculacea e native Cursed Crowfoot Ranunculus sceleratus Ranunculacea e native Hooked Crowfoot Ranunculus recurvatus Ranunculacea e native Black-Eyed Susan Rudbeckia hirta Asteraceae native Brown-eyed Susan Rudbeckia fulgida Asteraceae native Ruellia Ruellia strepens Acanthaceae native Curly Dock Rumex crispus Polygonaceae alien Sheep Sorrel Rumex acetosella Polygonaceae alien Bloodroot Sanginaria canadensis Papaveraceae native Long-Fruited Snakeroot Sanicula trifoliata Umbelliferae native Black Snake Root Sanicula marylandica Umbelliferae native Bouncing Bet Saponaria officinalis Caryophyllacea e alien Wild Basil Satureja vulgaris Labiatae alien Lizard Tail Saururus cernuus Saururaceae native Early Saxifrage Saxifraga virginiensis Saxifragaceae native Mad-dog Skullcap Scutellaria lateriflora Labiatae native Wild Stonecrop Sedum ternatum Crassulaceae native Squaw-weed Senecio obovatus Asteraceae native Golden Ragwort Senecio aureus Asteraceae native Prickly Mallow Sida spinosa Malvaceae alien Hedge Mustard Sisymbrium officinale Crusiferae alien Tumble Mustard Sisymbrium altissimum Cruciferae alien Blue-eyed Grass Sisyrinchium angustifolium Iridaceae native False Solomon's Seal Smilacina racemosa Liliaceae native Horse Nettle Solanum carolinense Solanaceae native Black Nightshade Solanum americanum Solanaceae native Wreath Goldenrod Solidago caesia Asteraceae native Sweet Goldenrod Solidago odora Asteraceae native Late Goldenrod Solidago gigantea Asteraceae native A Natural History of NCTC 18 Early Goldenrod Solidago juncea Asteraceae native Rough-stemmed Goldenrod Solidago rugosa Asteraceae native Spiny Sow Thistle Sonchus asper Asteraceae alien Venus Looking Glass Specularia perfoliata Campanulacea e native Rough Hedge-Nettle Stachys tenuifolia Labiatae native Common Chickweed Stellaria media Caryophyllacea e alien Star Chickweed Stellaria pubera Caryophyllacea e native Common Dandelion Taraxacum officinale Asteraceae alien American Germander Teucrium canadense Labiatae native Tall Meadow Rue Thalictrum polygamum Ranunculacea e native Foam Flower Tiarella cordifolia Saxifragaceae native Virginia Knotweed Tovara virginiana Polygonaceae native Yellow Goat's Beard Tragopogon pratensis Asteraceae alien Yellow Goat's Beard Tragopogon major Asteraceae alien Low Hop Clover Trifolium campestre Leguminosae alien Rabbit's Foot Clover Trifolium arvense Leguminosae alien Red Clover Trifolium pratense Leguminosae alien White Clover Trifolium repens Leguminosae alien Red Trillium Trillium erectum Liliaeae native Toad Trillium Trillium sessile Liliaeae native Coltsfoot Tussilago farfara Asteraceae alien Cattail Typha latifolia Typhaceae native Burning Nettle Urtica dioica Urticaceae alien Moth Mullein Verbascum blattaria Scrophulariace ae alien Common Mullein Verbascum thapsus Scrophulariace ae alien Blue Vervain Verbena hastata Verbenaceae native White Vervain Verbena urticifolia Verbenaceae native New York Ironweed Vernonia noveboracensi s Asteraceae native Corn Speedwell Veronica arvensis Scrophulariace ae alien European Brooklime Veronica beccabunga Scrophulariace ae alien Pale Violet Viola striata Violaceae native Round-leaved Violet Viola rotundifolia Violaceae native Common Blue Violet Viola papilionacea Violaceae native Cocklebur Xanthium strumarium Asteraceae native Sedges and Rushes COMMONNAME GENUS SPECIES FAMILY NATIVE Blunt Broom Sedge Carex tribuloides Cyperaceae native Carex Carex laxiculmis Cyperaceae native Carex Carex stipata Cyperaceae native Carex Carex intumescens Cyperaceae native Carex Carex frankii Cyperaceae native Carex Carex lurida Cyperaceae native Many-flowered Flatsedge Cyperus lancastriensis Cyperaceae native Galingale Cyperus strigosus Cyperaceae native Nut Sedge Cyperus esculentus Cyperaceae native A Natural History of NCTC 19 Common Rush Juncus effusus Juncaceae native Path Rush Juncus tenuis Juncaceae native Great Bulrush Scirpus validus Cyperaceae native Scirpus Scirpus lineatus Cyperaceae native Vines COMMONNAME GENUS SPECIES FAMILY NATIVE Trumpet Creeper Campsis radicans Bignoniaceae native Climbing Bittersweet Celastrus scandens Celastraceae native Field Bindweed Convolvulus arvensis Convulvulacea e alien Japanese Hop Humulus japonicus Canabinaceae alien Common Morning Glory Ipomea purpurea Convulvulacea e alien Wild Potato Vine Ipomea pandurata Convulvulacea e native Japanese Honeysuckle Lonicera japonica Caprifoliaceae alien Moonseed Menispermum canadense Menispermace ae native Virginia Creeper Parthenocissus quinquefolia Vitaceae native Yellow Passion Flower Passiflora lutea Passifloraceae native Poison Ivy Toxicodendron radicans Anacardiaceae native Wineberry Rubus phoenicolasius Rosaceae alien Black Raspberry Rubus occidentalis Rosaceae native Flowering Raspberry Rubus odoratus Rosaceae native One-seeded Bur Cucumber Sicyos angulatus Cucurbitaceae native Cat Briar Smilax rotundifolia Liliaceae native Periwinkle Vinca minor Apocynaceae alien Summer Grape Vitis aestivalis Vitaceae native Muscadine Vitis rotundifolia Vitaceae native Winter Grape Vitus vulpina Vitaceae native Ferns and Fern Allies COMMONNAME GENUS SPECIES FAMILY NATIVE Maidenhair Spleenwort Asplenium trichomanes Polypodiaceae native Meadow Spikemoss Selagenella apoda Sellagenellace ae native Field Horsetail Equisetum arvense Equisetaceae native Rattlesnake Fern Botrychium virginianum Ophioglossace ae native Purple Cliff-brake Pellaea atropurpurea Polypodiaceae native Common Maidenhair Adiantum pedatum Polypodiaceae native Liverwort Marchantia polymorpha Marchantiacea e native Ebony Spleenwort Asplenium platyneuron Polypodiaceae native Fragile Fern Cystopteris fragilis Polypodiaceae native Sensitive Fern Onoclea sensibilis Polypodiaceae native Southern Lady Fern Athyrium asplenioides Polypodiaceae native Bulblet Bladder Fern Cystopteris bulbifera Polypodiaceae native Christmas Fern Polystichum acrostichoides Polypodiaceae native A Natural History of NCTC 20 Spinulose Wood Fern Dryopteris spinulosa Polypodiacea native Rockcap Fern Polypodium virginianum Polypodiaceae native Walking Fern Camptosorus rhyzophyllum Polypodiaceae native Note: Ornamental species planted during and after the construction phase of NCTC are not included in this list, with the exception of the native warm season grasses planted in 1999. Some of the plants in the vine category could also be considered shrubs and visa versa. The list is current as of March 2004. Nomenclature tends to follow Strausbaugh and Core, Flora of West Virginia, though is gradually conforming to NRCS Plants Database (http://plants.usda.gov) as changes are discovered. Identification by Dan Everson and Alan Temple; database maintained by Dan Everson. A Natural History of NCTC 21 Mammals White-tailed deer Odocoileus virginianus Red Fox Vulpes fulva Gray Fox Urocyon cinereoargenteus Bobcat Lynx rufus Black Bear Ursus americanus (rarely travels through the area) Coyote Canis latrans Long-tailed Weasel Mustela frenata Mink Mustela vison Gray Squirrel Sciurus carolinensis Eastern Fox Squirrel Sciurus niger Striped Skunk Mephitis mephitis Common Raccoon Procyon lotor Virginia Opossum Didelphus virginiana Groundhog Marmota monax Masked Shrew Sorex cinereus Common Water Shrew Sorex palustris Hairy-tailed Mole Parascalops breweri Eastern Mole Scalopus aquaticus Star-nosed Mole Condylura cristata Meadow Vole Microtus pennsylvanicus Eastern Woodrat Neotoma floridana Deer Mouse Peromyscus maniculatus White-footed Mouse Peromyscus leucopus House Mouse Mus musculus Eastern Chipmunk Tamius striatus Little Brown Bat Myotis lucifigus Big Brown Bat Eptesicus fuscus Red Bat Lasiurus borealis Hoary Bat Lasiurus cinereus Eastern Pipistrelle Bat Pipestrellus subflavus Eastern Cottontail Rabbit Sylvilagus floridanus American Beaver Castor canadensis River Otter Lutra canadensis Eastern Cottontail Silvilagus floridanus A Natural History of NCTC 22 Birds The Shenandoah Valley and the Potomac River form natural migration corridors for birds in the spring and fall, thus many of the species listed below can only be seen during these periods of migration; the species listed below have been seen at NCTC or in the immediate vicinity. Common winter residents are marked with an asterisk*. Cormorants, Grebes and Loons ı Double-crested Cormorant ı Pied-billed Grebe ı Common Loon Herons and Bitterns ı Great Blue Heron* ı Green Heron ı American Bittern ı Black-crowned Night Heron Waterfowl ı Canada Goose* ı Tundra Swan ı Wood Duck* ı Green-winged Teal ı Blue-winged Teal ı Mallard* ı Black Duck ı American Wigeon ı Ring-necked Duck ı Lesser Scaup ı Common Goldeneye ı Bufflehead ı Ruddy Duck ı Hooded Merganser ı Common Merganser ı Red-breasted Merganser ı American Coot Vultures ı Turkey Vulture* ı Black Vulture* Hawks and Eagles ı Sharp-shinned Hawk* ı Red-tailed Hawk* ı Red-shouldered Hawk ı Bald Eagle* ı Broad-winged Hawk ı American Kestrel* ı Cooper’s Hawk ı Osprey ı Peregrine Falcon Quail and Turkeys ı Northern Bobwhite* ı Wild Turkey* Sandpipers and Shorebirds ı Killdeer ı Solitary Sandpiper ı Baird’s Sandpiper ı Least Sandpiper ı American Woodcock ı Greater Yellowlegs ı Lesser Yellowlegs Gulls ı Ring-billed Gull Pigeons and Doves ı Rock Dove* ı Mourning Dove* Cuckoos and Allies ı Yellow-billed Cuckoo ı Black-billed Cuckoo Goatsuckers ı Common Nighthawk ı Whip-Poor-Will Owls ı Great Horned Owl* ı Barred Owl* ı Eastern Screech Owl* ı Long-eared Owl Hummingbirds ı Ruby-throated Hummingbird Kingfishers ı Belted Kingfisher* Woodpeckers ı Northern Flicker* ı Red-headed Woodpecker* ı Pileated Woodpecker* ı Red-bellied Woodpecker* ı Yellow-bellied Sapsucker* ı Hairy Woodpecker* ı Downy Woodpecker* Flycatchers ı Eastern Kingbird ı Great Crested Flycatcher ı Eastern Phoebe ı Acadian Flycatcher ı Eastern Wood-pewee Swallows and Swifts ı Barn Swallow ı Cliff Swallow ı Bank Swallow ı Tree Swallow ı Northern Rough-winged Swallow ı Purple Martin ı Chimney Swift Jays, Crows and Ravens ı Blue Jay* ı American Crow* ı Fish Crow* ı Common Raven* Chickadees and Titmice ı Carolina Chickadee* ı Black-capped Chickadee* ı Tufted Titmouse* Nuthatches and Creepers ı White-breasted Nuthatch* ı Red-breasted Nuthatch ı Brown Creeper* Wrens ı House Wren ı Carolina Wren* ı Winter Wren Mimic Thrushes ı Northern Mockingbird* ı Gray Catbird ı Brown Thrasher Shrikes ı Loggerhead Shrike Thrushes ı American Robin* ı Wood Thrush ı Hermit Thrush ı Eastern Bluebird* Kinglets and Gnatcatchers ı Blue-gray Gnatcatcher ı Ruby-crowned Kinglet A Natural History of NCTC 23 ı Golden-crowned Kinglet Waxwings ı Cedar Waxwing* Starlings ı European Starling* Vireos ı Solitary Vireo ı Red-eyed Vireo ı Philadelphia Vireo ı Warbling Vireo ı White-eyed Vireo ı Yellow-throated Vireo Wood Warblers ı Blue-winged Warbler ı Northern Parula ı Nashville Warbler ı Yellow-rumped Warbler ı Cerulean Warbler ı Kentucky Warbler ı Black-throated Blue Warbler ı Black-throated Green Warbler ı Blackburnian Warbler ı Pine Warbler ı Prairie Warbler ı Palm Warbler ı Bay-breasted Warbler ı Blackpoll Warbler ı Worm-eating Warbler ı Mourning Warbler ı Tennessee Warbler ı Wilson’s Warbler ı Yellow Warbler ı Chestnut-sided Warbler ı Magnolia Warbler ı Cape May Warbler ı Black-and-White Warbler ı American Redstart ı Prothonotary Warbler ı Ovenbird ı Northern Waterthrush ı Louisiana Waterthrush ı Common Yellowthroat ı Yellow-breasted Chat Weaver Finches ı House Sparrow* Blackbirds and Orioles ı Bobolink ı Eastern Meadowlark ı Red-winged Blackbird* ı Rusty Blackbird* ı Common Grackle* ı Brown-headed Cowbird* ı Orchard Oriole ı Baltimore Oriole Tanagers ı Scarlet Tanager Finches, Sparrows, etc. ı Northern Cardinal* ı Indigo Bunting ı House Finch* ı Dickcissel ı American Goldfinch ı Rufous-sided Towhee ı Chipping Sparrow ı Field Sparrow ı Song Sparrow* ı Lincoln’s Sparrow ı Swamp Sparrow ı American Tree Sparrow ı Fox Sparrow ı Grasshopper Sparrow ı White-throated Sparrow* ı White-crowned Sparrow ı Dark-eyed Junco* ı Bobolink ı Purple Finch ı Evening Grosbeak ı Rose-breasted Grosbeak Additional Species: A Natural History of NCTC 24 Reptiles and Amphibians Spotted Salamander Ambystoma maculatum Valley and Ridge Salamander Plethodon hoffmani Northern Dusky Salamander Desmognathus brimleyorum Long-tailed Salamander Eurycea longicauda Red-backed Salamander Plethodon cinereus American Toad Bufo americanus Fowler’s Toad Bufo woodhouseii Upland Chorus Frog Pseudacris triseriata feriarum Gray Tree Frog Hyla versicolor Green Tree Frog Hyla cinerea disjunct population Spring Peeper Hyla crucifer crucifer Green Frog Rana clamitans Pickerel Frog Rana palustris Bull Frog Rana catesbeiana Wood Frog Rana sylvatica Snapping Turtle Chleydra serpentina Eastern Box Turtle Terrapene carolina Eastern Painted Turtle Chrysemys picta picta Wood Turtle Clemmys insculpta Black Rat Snake Elaphe obsoleta obsoleta Northern Water Snake Nerodia sipedon Northern Black Racer Coluber constrictor Eastern Garter Snake Thamnophis sirtalis Eastern Ribbon Snake Thamnophis sauritus sauritus Fish (no fish have been recorded living in any of the ponds or small creeks on the property) The following list contains fish common to this section of the Potomac River Smallmouth Bass Micropterus dolomieu Largemouth Bass Microptera salmoides Common Carp Cyprinus carpio Quillback Carpiodes cyprinus Bluegill Lepomis macrochirus Redbreast Sunfish Lepomis auritus Pumpkinseed Lepomis gibbosus Green Sunfish Lepomis cyanellus Long-eared Sunfish Lepomis megalotis Rockbass Ambloplites rupestris American Eel Anguilla rostrata Channel Catfish Ictalurus punctatus Yellow Bullhead Ameiurus natalis Margined Madtom Noturus insignis Walleye* Stizostedion vitreum Muskelunge* Esox masquinongy A Natural History of NCTC 25 Creek Chub Semotilus atromaculatus Fallfish Semotilus corporalis River Chub Nocomis micropogon Greenside Darter Etheostoma blenniodes Rainbow Darter Etheostoma caeruleum Fantail Darter Etheostoma flabellare Tesselated Darter Etheostoma olmstedi Central Stoneroller Campostoma anomalum Spotfin Shiner Cyprinella spiloptera Cutlips Minnow Exoglossum maxillingua Common Shiner Luxilus cornutus Golden Shiner Notemigonus crysoleucas Comely Shiner Notropis amoenus Spottail Shiner Notropis hudsonius Rosyface Shiner Notropis rubellus Bluntnose Minnow Pimephales notatus Blacknose Dace Rhinichthys atratulus Longnose Dace Rhinichthys cataractae Pearl Dace Margariscus margarita White Sucker Catostomus commersoni Northern Hogsucker Hypentelium nigricans Golden Redhorse Sucker Moxostoma erythrurum Shorthead Redhorse Sucker Moxostoma macrolepidotum Brook Trout* Salvelinus fontinalis Banded Killifish Fundulus diaphanus Yellow Perch Perca flavescens * = stocked fish A Natural History of NCTC 26 Invertebrates (Note: invertebrates and aquatic macrophytes have not been recorded in great detail as yet, but we are working on it – the list below is what we have thus far.) Aquatic invertebates include Asiatic clam, Corbicula fluminea which is present in high numbers in the Potomac River. It is an invasive exotic that appeared in the mid-20th century, with old shells several inches deep on the edges of Shepherd Island. Native mussels from several genera are also found in the Potomac including Lampsilis and Elliptio. List of caddisflies collected by B. Bauer of BHE Environmental 5/26/99 Protoptila palina Hydropsyche scalaris Cheumatopsyche campyla Hydroptila spatulata Cheumatopsyche sordida Oecetis inconspicua Hydropsyche hageni Triaenodes injustus Hydopsyche phalerata Butterflies (collected 1998, specimens curated at NCTC Lab Building) Summerbrood Hairstreak Everes comyntas comyntas Great Spangled Fritillary Speyeria cybele cybele European Skipper Thymelicus lineola Clouded Sulphur Colias philodice philodice Peck’s Skipper Polites peckius Orange Sulphur Colias eurytheme Meadow Fritillary Boloria bellona bellona Tawny Emporer Asterocampa clyton clyton Grey Hairstreak Strymon melinus humuli Silvery Checkerspot Chlosyne nycteis nycteis Pearl Crescent Phyciodes tharos Silver Spotted Skipper Epargyreus clarus Tiger Swallowtail Papilio glaucus Monarch Danaus plexippus Zebra Swallowtail Eurytides marcellus Other known butterfly species: Mourning Cloak Nymphalis antiopa antiopa Red-spotted Purple Limenitis arthemus astyanax Spicebush Swallowtail Papilio troilus troilus Hackberry Butterfly Asterocampa celtis celtis (there are more than 20 additional species that could be commonly found here, so this list is not yet a representative sample of the butterflies of the area.) A Natural History of NCTC 27 Invertebrates Recorded by Alan Temple’s Macroinvertebrate Ecology and Identification Course in 2002 and 2003: Platyhelminthes Turbellaria (flatworms) Gastropoda Pulmanata Physidae (pond snails) Prosobranchia Pleuroceridae (pleurocerid snails) Bivalvia Unionidae Elliptio (native mussels) Corbiculidae Corbicula fluminea (Asian clam) Arachnida Acariformes Hydracarina (water mites) Crustacea Isopoda Asellidae (aquatic sow bugs) Amphipoda (scuds) Insecta Hemiptera Corixidae (water boatmen) Notonectidae (backswimmers) Nepidae Ranatra (water scorpions) Belostomatidae (giant water bugs) Gerridae (water striders) Coleoptera Gyrinidae (whirligig beetles) Elmidae (riffle beetles) Dytiscidae (predaceous diving beetles) Hydrophilidae (water scavenger beetles) Psephidae (water pennies) Odonata Zygoptera Calopterygidae (broadwinged damselflies) Lestidae (spreadwinged damselflies) Anisoptera Gomphidae (clubtail dragonflies) Aeshnidae (darner dragonflies) Libellulidae (skimmer dragonflies) Plecoptera Perlidae (common stoneflies) Perlodidae (perlodid stoneflies) Ephemeroptera Isonichiidae Isonychia (brushlegged mayflies) Caenidae (small squaregill mayflies) Ephemerellidae A Natural History of NCTC 28 Drunella (spiny crawler mayflies) Heptageniidae (flatheaded mayflies) Potamanthidae (burrowing mayflies) Megaloptera Corydalidae Corydalus (hellgrammites) Trichoptera (caddisflies) Protoptila Cheumatopsyche Hydropsyche Hydroptila Oecetis Triaenodes Diptera Chaoboridae (phantom midges) Culicidae (mosquitoes) Simuliidae (blackflies) Chironomidae (midges) A Natural History of NCTC 29 Fungi identified and collected by WV DNR, June 26-28, 2001 voucher specimens curated at Davis and Elkins College Herbarium Auricularia auricularia Tree-Ear (Jelly Fungi) Bovista sp Puffball Chalciporus rubinellus Purple-red Bolete Cheimonophyllum candidissimus White Oysterette Collybia luxurians (a gilled mushroom) Conocybe lactea White Dunce Cap Coprinus quadrifidus Crepidotus applanatus Flat Crepidotus Crepidotus crocophyllus Crucibulum laeve Bird’s Nest Fungi Daldinia concentrica Carbon Balls, Crampballs Exidia thuretiana (a Jelly Fungi) Gyroporus castaneus Chestnut Bolete Lepiota cristata Malodorous Lepiota Megacollybia platyphylla (a gilled mushroom) Microstoma floccosum [floccosa?] Shaggy Scarlet Cup Phylloporus rhodoxanthus Gilled Bolete Pluteus admirabilis Yellow Pluteus Pluteus atricapillus (P. cervinus) Fawn Mushroom, Deer Mushroom Polyporus mori Polyporus varius Psathyrella candolleana Common Psathyrella Sarcoscypha occidentalis Stalked Scarlet Cup Schizophyllum commune Common Split Gill Scleroderma areolatum Puffball Scutellinia scutellata (a Saucer fungi) Ustulina deusta Carbon Cushion Xerula megalospora (a gilled mushroom) Xerula radicata var. radicata (a gilled mushroom) Xylaria polymorpha Dead Man’s Fingers A Natural History of NCTC 30 Rare, Threatened or Endangered Plants and Animals The Non-Game Wildlife Program of the West Virginia Dept. of Natural Resources has developed a list of species that they are particularly interested in locating and monitoring, either because of rarity, severe population decline, or interest in the actual distribution of difficult to find species. If any of these species are seen, you can contact them at PO Box 67, Elkins, WV 26241, phone number 304-637-0245 The following rare plants have been found at NCTC and already reported: Arabis patens - Rock Cress, on north-facing cliffs Arabis perstellatus – Rock Cress, on north-facing cliffs, creek near treatment plant. Erythronium albidum - White Trout Lily, riparian edge of Potomac For locations of these plants, contact Dan Everson at NCTC. From a protection standpoint, there is more of a concern at NCTC for the small areas that are densely populated with a few individuals of many native species, such as wet areas beside creeks, springs, and the north-east bluff overlooking the river. Be On the Lookout The following vertebrate species can potentially be found in the vicinity of NCTC and are of particular interest to the West Virginia DNR: Fish Satinfin Shiner Notropis analostanus Slimy Sculpin Cottus cognatus Amphibians and Reptiles Jefferson Salamander Ambystoma jeffersonianum Upland Chorus Frog Pseudacris triseriata feriarum Cricket Frog Acris crepitans crepitans Northern Leopard Frog Rana pipiens Spotted Turtle Clemmys guttata Wood Turtle Clemmys insculpta Redbelly Turtle Pseudemys rubriventris rubriventris Broadhead Skink Eumeces laticeps Birds (Note: only nesting activity at NCTC is of interest, since these species can be seen during migration or during long-distance foraging activities). American Bittern Long-eared Owl Least Bittern Bewick’s Wren Black Vulture Sedge Wren Osprey Olive-sided Flycatcher Coopers Hawk Loggerhead Shrike A Natural History of NCTC 31 Northern Harrier Golden-winged Warbler Bald Eagle Dickcissel Peregrine Falcon Bachman’s Sparrow Upland Sandpiper Henslow’s Sparrow Barn Owl Lark Sparrow Mammals Pygmy Shrew Sorex hovi Star-nosed Mole Codylura cristata Eastern Mole Scalopus aquaticus Northern Long-eared Bat Myotis septentrionalis Meadow Jumping Mouse Zapus hudsonius Least Weasel Mustela nivalis A Natural History of NCTC 32 Outdoor Concerns Ticks – deer ticks and dog ticks are present at NCTC and can potentially carry a number of diseases including Lyme Disease; just be aware and check yourself after spending time in unmowed areas during any warm day – winter or summer. They usually take several hours to attach themselves to your skin after they have hitched a ride, giving you a window of opportunity to remove them. Lyme Disease is serious, so it is important to be vigilant (deer ticks are tiny, dog ticks are bigger and easier to detect). If a tick does become attached, make sure you remove it carefully, and wash the site of contact. Lyme disease is easily treated with antibiotics in the early stages, so watch for a reddish circle and inflammation around the area of tick bite and see a doctor if you have any questions. Chiggers – these are the microscopic larval forms of an insect known as the harvest mite. In general they can be found in high grasses and uncut areas between July and September, though we are fortunate that they are infrequently encountered at NCTC. Red, itching dots along your waistband or under the elastic areas of your socks are clues that you may have become part of their food chain. They do not burrow into your skin, as is commonly believed, but instead the redness and inflammation are caused by an allergic reaction to their digestive enzymes. Exposure to ticks and chiggers can be minimized by wearing long pants tucked into socks or boots, and taking a shower soon after spending time in their favored habitats. Snakes – NCTC is potential habitat for copperheads and rattlesnakes, and they are found in the region typically along bluffs and ridges, but neither species has been officially documented here on the NCTC property. Historically a spring nearby was called Rattlesnake Spring, though given that many people call just about any snake a copperhead or rattlesnake, even this reference may be a case of overwrought imagination on the part of someone in the 1830s. Poison Ivy – the most common form here is a vine winding up a tree trunk, though you can also find it as a small woody-stemmed plant about knee high mixed in with other forbs, grasses, and shrubs. The plant is relatively uncommon at NCTC. Watch for a grayish, hairy vine, perhaps with white berries. In summer the leaves will be in 3’s, with a characteristic waxy looking sheen. The tell-tale symptoms of skin bubbling and intense itching may not show up for several days after exposure, depending on your level of reaction to the irritant. The skin irritant is urushiol, an oil which can be cleaned off with commercial products such as TecNu, or with other products that break down oils (unfortunately soaps don’t seem to work effectively for many people – washing your hands with a mild soap may only serve to spread the oil around, depending on the level of reaction you have to the irritant; note that the active ingredient of TecNu, is paint thinner). |
Images Source File Name | 8638.pdf |
Date created | 2012-12-12 |
Date modified | 2013-01-25 |
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