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    • Zebra mussel on native mussel

    • Zebra mussel on native mussel

    • Aquatic environments;

    • The zebra mussel was inadvertently introduced to the United States and is now spreading rapidly, impacting native fish species, as well as clogging power plant intakes. Boaters, anglers, and waterfowl hunters can help prevent further spread of...
    • Yukon Delta National Wildlife Refuge, Alaska

    • Yukon Delta National Wildlife Refuge, Alaska

    • Snow

    • Yukon Delta NWR, Bethel, Alaska: In ancient times, it was said, "All roads lead to Rome." And in more modern times, "All roads lead to Paris." Well, no roads lead to Bethel, Alaska, and the 26-million-acre Yukon Delta...
    • William Finley at Klamath Marsh bird watching

    • William Finley at Klamath Marsh bird watching

    • History; Birds; Lakes; Photography; Recreation; Wildlife refuges; Wildlife viewing;

    • Herman Bohlman on the right setting up a bird watching tent in Klamath Marsh as William Finley gets more gear from the boat on the left. "It is neccessary to study them from a blind. The one I used was an old wagon umbrella with a green cloth...
    • Western Snowy Plover Adult Feeding

    • Western Snowy Plover Adult Feeding

    • Birds; Shorebirds; Threatened species; Coastal environments;

    • The Pacific Coast population of the western snowy plover is federally listed under the Endangered Species Act of 1973 as threatened. Threats include poor reproductive success, resulting from human disturbance, predation, and inclement weather,...
    • Surface Elevation Monitoring

    • Surface Elevation Monitoring

    • Structures; Riparian environments; Rivers and streams; Habitat restoration; Wetland restoration; Wetlands; Wildlife refuges; Biologists (USFWS); Monitoring;

    • USFWS biologist Bill Bridgeland taking measurements on a Surface Elevation Table (SET) installed last year in cooperation with USGS. SETs will allow us to detect changes in the elevation of the marsh surface in response to the marsh restoration as...
    • Sandhill cranes at Stone Lakes National Wildlife Refuge

    • Sandhill cranes at Stone Lakes National Wildlife Refuge

    • Migratory birds; Birds; Shorebirds; Wetlands; Wildlife refuges;

    • The Stone Lakes National Wildlife Refuge is south of Sacramento in the northern reaches of the Sacramento-San Joaquin River Delta. Fish and Wildlife Service staff and partners have been working to restore historic wetland communities and enhance...
    • Rhino horns

    • Rhino horns

    • Wildlife management; Work of the Service;

    • Rising global demand for rhino horn – both for alleged medicinal value and ornamental use – has led to an epidemic of poaching in Africa, as well as theft and illegal trade in rhino horns from museums and private collections. Illegal...
    • Rhino horns

    • Rhino horns

    • Animal industry; Water management; Wildlife restoration; Work of the Service;

    • Rising global demand for rhino horn – both for alleged medicinal value and ornamental use – has led to an epidemic of poaching in Africa, as well as theft and illegal trade in rhino horns from museums and private collections. Illegal...
    • Pagosa skyrocket plant

    • Pagosa skyrocket plant

    • Plants; Endangered species;

    • Ipomopsis polyantha is an herbaceous biennial 12 to 24 inches (in) (30 to 60 centimeters (cm)) tall, branched from near the base above the basal rosette of leaves. Deeply divided leaves with linear segments are scattered up the stem. Stems and...
    • Pagosa skyrocket habitat

    • Pagosa skyrocket habitat

    • Plants; Endangered species;

    • Ipomopsis polyantha is an herbaceous biennial 12 to 24 inches (in) (30 to 60 centimeters (cm)) tall, branched from near the base above the basal rosette of leaves. Deeply divided leaves with linear segments are scattered up the stem. Stems and...
    • Pagosa skyrocket flowers and syrphid fly

    • Pagosa skyrocket flowers and syrphid fly

    • Plants; Endangered species;

    • Ipomopsis polyantha is an herbaceous biennial 12 to 24 inches (in) (30 to 60 centimeters (cm)) tall, branched from near the base above the basal rosette of leaves. Deeply divided leaves with linear segments are scattered up the stem. Stems and...
    • Pagosa skyrocket flowers

    • Pagosa skyrocket flowers

    • Plants; Endangered species;

    • Ipomopsis polyantha is an herbaceous biennial 12 to 24 inches (in) (30 to 60 centimeters (cm)) tall, branched from near the base above the basal rosette of leaves. Deeply divided leaves with linear segments are scattered up the stem. Stems and...
    • Pagosa skyrocket flowers

    • Pagosa skyrocket flowers

    • Plants; Endangered species;

    • Ipomopsis polyantha is an herbaceous biennial 12 to 24 inches (in) (30 to 60 centimeters (cm)) tall, branched from near the base above the basal rosette of leaves. Deeply divided leaves with linear segments are scattered up the stem. Stems and...
    • Pagosa skyrocket flowers

    • Pagosa skyrocket flowers

    • Plants; Endangered species;

    • Ipomopsis polyantha is an herbaceous biennial 12 to 24 inches (in) (30 to 60 centimeters (cm)) tall, branched from near the base above the basal rosette of leaves. Deeply divided leaves with linear segments are scattered up the stem. Stems and...
    • Pagosa skyrocket flower

    • Pagosa skyrocket flower

    • Plants; Endangered species;

    • Ipomopsis polyantha is an herbaceous biennial 12 to 24 inches (in) (30 to 60 centimeters (cm)) tall, branched from near the base above the basal rosette of leaves. Deeply divided leaves with linear segments are scattered up the stem. Stems and...
    • Oil well pollution

    • Oil well pollution

    • Environmental Sciences; Contaminants; Environmental quality; Equipment; Human impacts; Industries; Oil production; Oil spills; Petroleum industry; Pollutants; Soil degradation;

    • Oil well head and surrounding oil pollution on ground in Park County, Wyoming. Vertical.
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