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Display: 20

    • Glossary

    • Glossary
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    • 22 Glossary Species Status categories: at- risk species — species of plants and animals that are Federal candidate species and those that the Service has not identified as candidate species, but are facing threat( s) and are potential...
    • Attu Ptarmigan project 2005

    • Attu Ptarmigan project 2005
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Rock Ptarmigan crew

    • Evermann's Rock Ptarmigan crew
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; ; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's  Rock Ptarmigan capture attempt

    • Evermann's Rock Ptarmigan capture attempt
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six...
    • Evermann's  Rock Ptarmigan3

    • Evermann's Rock Ptarmigan3
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005, Ptarmigan on WWII relics The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in...
    • Evermann's  Rock Ptarmigan

    • Evermann's Rock Ptarmigan
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Ptarmigan  radio harness for tracking

    • Evermann's Ptarmigan radio harness for tracking
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • The Evermann’s Rock Ptarmigan project is helping to restore biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of these...
    • Evermann's Ptarmigan capture

    • Evermann's Ptarmigan capture
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Ptarmigan egg

    • Evermann's Ptarmigan egg
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; ; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six...
    • Evermann's Rock Ptarmigan in flight

    • Evermann's Rock Ptarmigan in flight
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; ; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Rock Ptarmigan, Attu

    • Evermann's Rock Ptarmigan, Attu
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; ; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Rock Ptarmigan, Attu

    • Evermann's Rock Ptarmigan, Attu
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; ; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Rock Ptarmigan, Attu5

    • Evermann's Rock Ptarmigan, Attu5
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; ; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six...
    • Evermann's Rock Ptarmigan, Attu

    • Evermann's Rock Ptarmigan, Attu
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; ; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Rock Ptarmigan, Attu

    • Evermann's Rock Ptarmigan, Attu
    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; ; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Habitat suitability index models: muskellunge (Esox masquinongy)

    • Habitat suitability index models: muskellunge (Esox masquinongy)
    • Aquaculture; Fishes; Aquatic environments; Habitat conservation; Biologists (USFWS);
    • The muskellunge (Esox masquinongy) was recognized as a distinct species relatively late, and its nomenclature is varied and confused (Crossman 1986). Currently, only one species of muskellunge is recognized, with a variety of strains (Crossman...

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