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This data package presents legacy data on Emperor Goose, Cackling Goose, Black Brant, and Greater White-fronted Goose, breeding biology, behavior, and morphology collected at study sites near Kokechik Bay on the Yukon Delta National Wildlife Refuge (previously Clarence Rhodes National Wildlife Refuge), Alaska during the summers of 1982 through 1988. These data were collected to provide a basis for the evaluation of long-term changes in Emperor Goose and other waterfowl biology on the Yukon-Kuskokwim Delta, Alaska.
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This dataset contains morphological measures of Pacific walruses sampled in the Chukchi and Bering Seas between 1972 and 1991. From 1972 through 1991 the Soviet Union employed industrial methods to harvest and process Pacific walruses to enhance the Russian Far East economy. Under the oversight of the Pacific branch of the Soviet All-Union Scientific Investigational Institute of Marine Fisheries and Oceanography (VNIRO), offshore harvesting crews worked from specialized marine mammal hunting ships (ZRS) throughout the spring, summer, and early autumn in the marginal sea ice habitats of the Bering and Chukchi Seas. They launched small (~7 m) wooden boats to approach walruses resting on ice pans, which were dispatched...
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These data provide morphological measurements and primary feather length measurements of Black Oystercatcher (Haematopus bachmani) captured at several sites across Alaska and British Columbia between 2019 and 2022. The first table contains mass and morphological measurements of body and bill size. The second table provides lengths of individual primary feathers measured from folded wing photographs using a computer software. These feather lengths are to be used in a size-constrained components analysis to calculate wing shape such as pointedness and convexity.
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This dataset consists of three tables, 1) taxonomy, 2) contributors, and 3) shorebird morphological measurements collected from various species captured from 1977-2021. In addition, photographs of plumage patterns are available for several species. Researchers with the U.S. Geological Survey - Alaska Science Center, along with collaborators from many government agencies and research institutions, have studied shorebirds at numerous sites across North America, the Pacific Ocean, Australia, and New Zealand. This release includes over 10,000 observations relating to 35 shorebird species.


    map background search result map search result map Breeding Biology, Behavior, and Morphology of Emperor Geese and Other Waterfowl near Kokechik Bay, Yukon Delta National Wildlife Refuge, Alaska during 1982-1988 Length, Weight, Energy Density, and Isotopic Values of Fish from Rivers in Northwest Alaska, 2015-2019 Nearshore Fish Isotope Values, Beaufort Sea, Alaska, 2017-2019 Morphological Measures of Pacific Walruses Collected in the Chukchi and Bering Seas 1972-1991 Black Oystercatcher Morphology and Primary Feather Lengths in Alaska and British Columbia, 2019-2022 Breeding Biology, Behavior, and Morphology of Emperor Geese and Other Waterfowl near Kokechik Bay, Yukon Delta National Wildlife Refuge, Alaska during 1982-1988 Nearshore Fish Isotope Values, Beaufort Sea, Alaska, 2017-2019 Length, Weight, Energy Density, and Isotopic Values of Fish from Rivers in Northwest Alaska, 2015-2019 Black Oystercatcher Morphology and Primary Feather Lengths in Alaska and British Columbia, 2019-2022 Morphological Measures of Pacific Walruses Collected in the Chukchi and Bering Seas 1972-1991