Alaska Science Center Ecosystems data releases are grouped by topic: Terrestrial Ecosystems, Aquatic Ecosystems, Wildlife Health and Genetics, Environmental Health and eDNA, Habitat and Landscape Change, and Ecosystem Analytics.
Return to Ecosystems or ASC Data Releases
Terrestrial Ecosystems | Aquatic Ecosystems | Wildlife Health and Genetics | Environmental Health and eDNA | Habitat and Landscape Change | Ecosystem Analytics
View by subject area:
Birds - Loons | Waterfowl | Shorebirds | Seabirds | Landbirds
Mammals - Caribou | Polar Bears | Walruses | Sea Otters
Fish - Marine and Freshwater Fish | Forage Fish
Landscape - Nearshore Marine | Eelgrass | Rusting Rivers
Genetics and Disease - Molecular Ecology Laboratory | Wildlife Disease
Quantitative Support - Ecosystem Analytics
View by collection:
ASC Wildlife Tracking Data Collection
Terrestrial Ecosystems
Terrestrial Ecosystems
Filter Total Items: 87
Aerial Photo Imagery from Fall Waterfowl Surveys, Izembek Lagoon, Alaska, 2017-2019 Aerial Photo Imagery from Fall Waterfowl Surveys, Izembek Lagoon, Alaska, 2017-2019
The imagery and annotations presented here were generated while testing an aerial photographic survey design to improve repeatability, transparency, and estimation of variance for annual population estimates of geese staging at Izembek Lagoon, Alaska. This dataset includes 1) 131,031 .JPG images captured from a small fixed-wing occupied aircraft, usually at an altitude of about 457 m...
Inventory Data of Lowland-Breeding Birds and Associated Vegetation Types on the Alaska Peninsula, 2004-2007 Inventory Data of Lowland-Breeding Birds and Associated Vegetation Types on the Alaska Peninsula, 2004-2007
This release includes data collected using stratified random surveys to inventory the birds breeding in lowlands (elevation below 100m) of the Alaska Peninsula, during summers 2004-2007. Data were collected at 792 survey points (10-minute point counts) on 52 5-km x 5-km plots. The data are in seven tables: 1) geographic coordinates of the bounding corners of each of the 52 survey plots...
Data Supporting Studies of Waterbird and Arctic Lake Ecosystems within the National Petroleum Reserve-Alaska, 1974-1992 Data Supporting Studies of Waterbird and Arctic Lake Ecosystems within the National Petroleum Reserve-Alaska, 1974-1992
This data package presents raw legacy data collected during 1974-1992 on the Arctic Coastal Plain (primarily in the National Petroleum Reserve - Alaska; NPR-A). The data were collected in support of a long-term multi-species wetland ecosystem study that aimed to provide an understanding of occurrence and densities of bird, mammal, fish, invertebrate, and plant species. The study included...
Arthropod Abundance and Shrub Cover and Height on the Seward Peninsula, Alaska, 2015-2016 Arthropod Abundance and Shrub Cover and Height on the Seward Peninsula, Alaska, 2015-2016
This data set contains information (in three tables) with numbers and biomass of invertebrates (primarily arthropods) collected in pitfall-trap arrays and sweep-net samples on a series of plots (n = 13 total) at one coastal and one interior study site on the Seward Peninsula in northwestern Alaska during the summers of 2015 and 2016. Associated data on the horizontal cover and height of...
Bird Species Checklists from USGS Alaska Science Center Field Camps Bird Species Checklists from USGS Alaska Science Center Field Camps
These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps. Data include species observation details such as observers, dates, location, and number of individuals seen.
Aerial surveys of shorebirds at pre-migratory staging sites in western Alaska, 2018-2019 Aerial surveys of shorebirds at pre-migratory staging sites in western Alaska, 2018-2019
These data are in one table and document the numbers of four species of shorebird counted during aerial surveys of coastal sites in western Alaska. Survey regions encompassed coastline between the mouths of the Kuskokwim and Yukon rivers, and the northern coast of the Alaska Peninsula from the mouths of the Kvichak and Naknek Rivers to Nelson Lagoon. Surveys were flown from 7-9 September...
Measurements of Surfbirds (Calidris virgata), Southcentral Alaska 1997-1999 Measurements of Surfbirds (Calidris virgata), Southcentral Alaska 1997-1999
These morphometric data are in two tables from surfbirds (adults and chicks) captured at two locations in southcentral Alaska, 1997-1999.
Arthropod Abundance Data from the Colville River Delta, Alaska Arthropod Abundance Data from the Colville River Delta, Alaska
This data release contains information on the seasonal diversity and abundance of arthropods collected at the Colville River Delta, Alaska, 2011-2012 and 2014-2107. Researchers with the US Geological Survey began studying the reproductive ecology of birds at a site on the Colville River near the Beaufort Sea coast in 2011. Researchers concurrently collected arthropods at 3-day intervals...
Environmental Data from the Colville River Delta, Alaska Environmental Data from the Colville River Delta, Alaska
This data release contains two tables with information on seasonal values for temperature, wind, and snow cover collected at the Colville River Delta, Alaska, 2011-2018. Researchers with the U.S. Geological Survey used an on-site weather station to automatically record the temperature and speed and direction of the wind across the duration of their field season. Researchers also...
Avian Demographic Data from the Colville River Delta, Alaska Avian Demographic Data from the Colville River Delta, Alaska
This data release contains multiple tables with information on avian demographics collected at the Colville River Delta, Alaska, 2011-2018. Researchers with the U.S. Geological Survey began studying the reproductive ecology of birds at a site on the Colville River near the Beaufort Sea coast in 2011. Researchers monitored the nests of geese, shorebirds, and landbirds at this study site
Aquatic Ecosystems
Aquatic Ecosystems
Filter Total Items: 152
Gridded Seabird Density Estimates in Lower Cook Inlet, Alaska Gridded Seabird Density Estimates in Lower Cook Inlet, Alaska
This data set provides monthly (March-October) gridded density estimates for seabirds in lower Cook Inlet, Alaska. Gridded density estimates were produced by applying spatiotemporal modeling of at-sea survey data collected between 1975 and 2021 of seabird at-sea surveys available in the North Pacific Pelagic Seabird Database (NPPSD; Drew and Piatt 2015). We modeled joint dynamic species
Data Supporting Walrus Areas of Use in the Chukchi Sea During Sparse Sea Ice Cover Data Supporting Walrus Areas of Use in the Chukchi Sea During Sparse Sea Ice Cover
The dataset consists of geospatial files depicting the estimated June-to-November distribution of walrus foraging and occupancy during a four year period of sparse sea ice cover above the Chukchi Sea continental shelf (2008-2011). The walrus distribution and utilization estimates are based on location data from satellite-linked radio-tracked walruses in the Chukchi Sea (2008-2011)...
Walrus Haulout and In-water Activity Levels Relative to Vessel Interactions in the Chukchi Sea, 2012-2015 Walrus Haulout and In-water Activity Levels Relative to Vessel Interactions in the Chukchi Sea, 2012-2015
These data were used to evaluate effects of vessel exposure on Pacific walrus (Odobenus rosmarus divergens) behaviors. We obtained greater than 120,000 hours of location and behavior (foraging, in-water not foraging, hauled out) data from 218 satellite-tagged walruses and linked them to vessel locations from the marine Automated Information System. This yielded 206 vessel-exposed walrus...
U.S. Fish and Wildlife Service Tracking Data for Steller's Eiders (Polysticta stelleri) U.S. Fish and Wildlife Service Tracking Data for Steller's Eiders (Polysticta stelleri)
This data release includes 2 child items with tracking data for Steller's Eider, a species of seaduck that breeds throughout the circumpolar Arctic and spends the winter in coastal areas of western and southwestern Alaska. The Alaska-breeding population is listed as threatened under provisions of the Endangered Species Act. Child Item 1: "U.S. Fish and Wildlife Service Argos Satellite...
Nearshore Fish Isotope Values, Beaufort Sea, Alaska, 2017-2019 Nearshore Fish Isotope Values, Beaufort Sea, Alaska, 2017-2019
This dataset contains isotope results of stable isotope (δ13C and δ15N) and radicoarbon (F14C) analyses of muscle tissue from fish collected in the nearshore Beaufort Sea, Alaska in summers 2017-2019.
Rocky Intertidal Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park Rocky Intertidal Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park
This data package includes four (4) child items with data from the Gulf Watch Alaska (GWA) long-term monitoring program (nearshore monitoring component) rocky intertidal study. Child Item One: "Rocky Intertidal Sea Star Size, Count, and Disease Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park". The data include: (1) size and disease state...
Pacific Walrus Coastal Haulout Occurrences Interpreted from Satellite Imagery Pacific Walrus Coastal Haulout Occurrences Interpreted from Satellite Imagery
This dataset is derived from images from a variety of Earth observing satellite imagery sources collected at known walrus coastal haulouts in Alaska and Chukotka, Russia. Earth observing imagery sources used in this data release include (but are not limited to) optical imagery collections by: (1) the European Space Agency's Sentinel-2 mission, (2) the Plant Labs Planet Scope...
Bivalve Shell Growth Indices, Chukchi Sea, Alaska, 1867-2015 Bivalve Shell Growth Indices, Chukchi Sea, Alaska, 1867-2015
This dataset contains the growth index from annual growth bands in the shells of two bivalve clam species (Astarte borealis and Liocyma fluctuosa) captured in the Chukchi Sea, Alaska. The growth index is based on a measurement of the annual growth increment width that has been detrended for age-related differences in growth.
Metabolic Rates Measured in Three Captive Adult Female Walruses (Odobenus rosmarus divergens) While Resting, Swimming, and Diving Metabolic Rates Measured in Three Captive Adult Female Walruses (Odobenus rosmarus divergens) While Resting, Swimming, and Diving
This dataset contains measurements of oxygen consumption and carbon dioxide production of 3 adult female walruses (Odobenus rosmarus divergens) while resting, swimming, and diving at the Oceanografic Aquarium in Valencia, Spain. Oxygen consumption and carbon dioxide production was measured for walruses breathing under a respiratory dome while resting at the water surface, under a...
Tracking Data for Long-tailed Ducks (Clangula hyemalis) Tracking Data for Long-tailed Ducks (Clangula hyemalis)
This data release includes 2 child items with tracking data for Long-tailed Ducks, a species of seaduck that breeds throughout the circumpolar Arctic and spends the winter in coastal areas of northern and mid latitudes. Child Item 1: "Argos Satellite Tracking Data for Long-tailed Ducks (Clangula hyemalis) - Processed Data" -- Quality-controlled data collected from Argos satellite...
Wildlife Health and Genetics
Wildlife Health and Genetics
Filter Total Items: 109
Peregrine Falcon (Falco peregrinus) mtDNA and Microsatellite Genetic Data, Alaska, Canada and Russia, 1880-2012 Peregrine Falcon (Falco peregrinus) mtDNA and Microsatellite Genetic Data, Alaska, Canada and Russia, 1880-2012
This data set provides sample information, microsatellite genotype, and NCBI accession numbers for mitochondrial DNA sequences of peregrine falcons (Falco peregrinus) from North America and Russia.
Genetic Microsatellite Data from Sorex, Based on Holarctic Sampling Genetic Microsatellite Data from Sorex, Based on Holarctic Sampling
This data set describes nuclear microsatellite genotypes derived from 17 autosomal loci (Sug001, Sug002, Sug003, Sug006, Sug007, Sug008, Sug009, Sug010, Sug011, Sug012, Sug019, Sug021, Sug022, Sug023, Sug024, Sug029, Sug038) in shrews, Sorex spp.
Data Used to Assess the Acute Physiological Response of Polar Bears to Helicopter Capture Data Used to Assess the Acute Physiological Response of Polar Bears to Helicopter Capture
This dataset is in five tables with data from ecophysiological studies of free-ranging polar bears of the Southern Beaufort Sea subpopulation. They were equipped with high-resolution activity sensors, body temperature loggers, and GPS satellite-telemetry collars, to compare physiological state and activity of bears during natural behavior with that experienced by bears during helicopter...
Genetic Data from Cooper's Hawks (Accipiter cooperii), North America Genetic Data from Cooper's Hawks (Accipiter cooperii), North America
This data set describes nuclear microsatellite genotypes derived from six autosomal loci (AgCA222, Age7.1JT, BV13, BV20, NVH206, NVH195-2) in Cooper's Hawks. Samples originated from blood samples collected from live trapped birds.
Genomic Data from Ptarmigan and Grouse, Alaska Genomic Data from Ptarmigan and Grouse, Alaska
This data set provides sample data and NCBI accession information for genomic sequencing of ptarmigan and grouse from Alaska.
Pathogen and Contaminant Exposure Data from Southern Beaufort Sea Polar Bears, 2007-2014 Pathogen and Contaminant Exposure Data from Southern Beaufort Sea Polar Bears, 2007-2014
These were data collected from polar bears from the Southern Beaufort Sea during the spring between 2007 and 2014. Data include individual ID, capture date, sex and age class, whether individuals visited bowhead whale carrion sites, exposure status relative to five pathogens, and concentrations of certain persistent organic pollutants.
Temporal Viral Viability Data from Avian Influenza A Viruses Maintained in Alaska Wetlands Under Experimental and Environmental Conditions Temporal Viral Viability Data from Avian Influenza A Viruses Maintained in Alaska Wetlands Under Experimental and Environmental Conditions
Data sets containing: (1) sample collection and influenza A virus (IAV) screening information for wild ducks, (2) water temperature data from four wetlands within the Izembek National Wildlife Refuge in Alaska, USA (3) water quality measurement from four wetlands within the Izembek National Wildlife Refuge in Alaska, USA, (4) genetic sequence data for IAVs recovered from replicate...
Blood Parasite Infection, Body Mass, and Survival Data from Emperor Geese (Anser canagicus), Yukon-Kuskokwim Delta, Alaska, 2006-2016 Blood Parasite Infection, Body Mass, and Survival Data from Emperor Geese (Anser canagicus), Yukon-Kuskokwim Delta, Alaska, 2006-2016
This dataset provides two tables of blood parasite infection data collected from Emperor Geese (Anser canagicus) on Yukon-Kuskokwim Delta, Alaska, 2006-2016. Three genera of blood parasites (Leucocytozoon, Haemoproteus, Plasmodium) were detected by molecular sequencing of a 479 bp fragment of the Cytochrome-b gene. The data provided in the tables are: 1) age, sex, mass, infection status...
Data on Blood Analytes and Post-Release Survival in Spectacled Eiders (Somateria fischeri), Northern Alaska, 2010-2011 Data on Blood Analytes and Post-Release Survival in Spectacled Eiders (Somateria fischeri), Northern Alaska, 2010-2011
These data are in one table of variables that potentially influenced the immediate post-release survival of spectacled eiders (Somateria fischeri) from the Colville River Delta, Alaska marked with coelomically implanted satellite transmitters with percutaneous antennae in 2010 and 2011.
Protein and Fat Consumption of Zoo Polar Bears in 14-day Ad Libitum Trials, 2019-2020 Protein and Fat Consumption of Zoo Polar Bears in 14-day Ad Libitum Trials, 2019-2020
This is a single table containing measures of the amount of fat and meat consumed by 4 adult female and 5 adult male polar bears in U.S. zoos when provided both food sources ad libitum for 12-14 days. Trial length was intended to be 14 days, but trial dietary items ran out for two bears prior to the end of the trial (i.e., at 12 and 13 days instead of 14 days). The data set includes the...
Environmental Health and eDNA
Environmental Health and eDNA
Habitat and Landscape Change
Habitat and Landscape Change
Filter Total Items: 39
No results found.
Ecosystem Analytics
Ecosystem Analytics
Alaska Science Center Ecosystems data releases are grouped by topic: Terrestrial Ecosystems, Aquatic Ecosystems, Wildlife Health and Genetics, Environmental Health and eDNA, Habitat and Landscape Change, and Ecosystem Analytics.
Return to Ecosystems or ASC Data Releases
Terrestrial Ecosystems | Aquatic Ecosystems | Wildlife Health and Genetics | Environmental Health and eDNA | Habitat and Landscape Change | Ecosystem Analytics
View by subject area:
Birds - Loons | Waterfowl | Shorebirds | Seabirds | Landbirds
Mammals - Caribou | Polar Bears | Walruses | Sea Otters
Fish - Marine and Freshwater Fish | Forage Fish
Landscape - Nearshore Marine | Eelgrass | Rusting Rivers
Genetics and Disease - Molecular Ecology Laboratory | Wildlife Disease
Quantitative Support - Ecosystem Analytics
View by collection:
ASC Wildlife Tracking Data Collection
Terrestrial Ecosystems
Terrestrial Ecosystems
Filter Total Items: 87
Aerial Photo Imagery from Fall Waterfowl Surveys, Izembek Lagoon, Alaska, 2017-2019 Aerial Photo Imagery from Fall Waterfowl Surveys, Izembek Lagoon, Alaska, 2017-2019
The imagery and annotations presented here were generated while testing an aerial photographic survey design to improve repeatability, transparency, and estimation of variance for annual population estimates of geese staging at Izembek Lagoon, Alaska. This dataset includes 1) 131,031 .JPG images captured from a small fixed-wing occupied aircraft, usually at an altitude of about 457 m...
Inventory Data of Lowland-Breeding Birds and Associated Vegetation Types on the Alaska Peninsula, 2004-2007 Inventory Data of Lowland-Breeding Birds and Associated Vegetation Types on the Alaska Peninsula, 2004-2007
This release includes data collected using stratified random surveys to inventory the birds breeding in lowlands (elevation below 100m) of the Alaska Peninsula, during summers 2004-2007. Data were collected at 792 survey points (10-minute point counts) on 52 5-km x 5-km plots. The data are in seven tables: 1) geographic coordinates of the bounding corners of each of the 52 survey plots...
Data Supporting Studies of Waterbird and Arctic Lake Ecosystems within the National Petroleum Reserve-Alaska, 1974-1992 Data Supporting Studies of Waterbird and Arctic Lake Ecosystems within the National Petroleum Reserve-Alaska, 1974-1992
This data package presents raw legacy data collected during 1974-1992 on the Arctic Coastal Plain (primarily in the National Petroleum Reserve - Alaska; NPR-A). The data were collected in support of a long-term multi-species wetland ecosystem study that aimed to provide an understanding of occurrence and densities of bird, mammal, fish, invertebrate, and plant species. The study included...
Arthropod Abundance and Shrub Cover and Height on the Seward Peninsula, Alaska, 2015-2016 Arthropod Abundance and Shrub Cover and Height on the Seward Peninsula, Alaska, 2015-2016
This data set contains information (in three tables) with numbers and biomass of invertebrates (primarily arthropods) collected in pitfall-trap arrays and sweep-net samples on a series of plots (n = 13 total) at one coastal and one interior study site on the Seward Peninsula in northwestern Alaska during the summers of 2015 and 2016. Associated data on the horizontal cover and height of...
Bird Species Checklists from USGS Alaska Science Center Field Camps Bird Species Checklists from USGS Alaska Science Center Field Camps
These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps. Data include species observation details such as observers, dates, location, and number of individuals seen.
Aerial surveys of shorebirds at pre-migratory staging sites in western Alaska, 2018-2019 Aerial surveys of shorebirds at pre-migratory staging sites in western Alaska, 2018-2019
These data are in one table and document the numbers of four species of shorebird counted during aerial surveys of coastal sites in western Alaska. Survey regions encompassed coastline between the mouths of the Kuskokwim and Yukon rivers, and the northern coast of the Alaska Peninsula from the mouths of the Kvichak and Naknek Rivers to Nelson Lagoon. Surveys were flown from 7-9 September...
Measurements of Surfbirds (Calidris virgata), Southcentral Alaska 1997-1999 Measurements of Surfbirds (Calidris virgata), Southcentral Alaska 1997-1999
These morphometric data are in two tables from surfbirds (adults and chicks) captured at two locations in southcentral Alaska, 1997-1999.
Arthropod Abundance Data from the Colville River Delta, Alaska Arthropod Abundance Data from the Colville River Delta, Alaska
This data release contains information on the seasonal diversity and abundance of arthropods collected at the Colville River Delta, Alaska, 2011-2012 and 2014-2107. Researchers with the US Geological Survey began studying the reproductive ecology of birds at a site on the Colville River near the Beaufort Sea coast in 2011. Researchers concurrently collected arthropods at 3-day intervals...
Environmental Data from the Colville River Delta, Alaska Environmental Data from the Colville River Delta, Alaska
This data release contains two tables with information on seasonal values for temperature, wind, and snow cover collected at the Colville River Delta, Alaska, 2011-2018. Researchers with the U.S. Geological Survey used an on-site weather station to automatically record the temperature and speed and direction of the wind across the duration of their field season. Researchers also...
Avian Demographic Data from the Colville River Delta, Alaska Avian Demographic Data from the Colville River Delta, Alaska
This data release contains multiple tables with information on avian demographics collected at the Colville River Delta, Alaska, 2011-2018. Researchers with the U.S. Geological Survey began studying the reproductive ecology of birds at a site on the Colville River near the Beaufort Sea coast in 2011. Researchers monitored the nests of geese, shorebirds, and landbirds at this study site
Aquatic Ecosystems
Aquatic Ecosystems
Filter Total Items: 152
Gridded Seabird Density Estimates in Lower Cook Inlet, Alaska Gridded Seabird Density Estimates in Lower Cook Inlet, Alaska
This data set provides monthly (March-October) gridded density estimates for seabirds in lower Cook Inlet, Alaska. Gridded density estimates were produced by applying spatiotemporal modeling of at-sea survey data collected between 1975 and 2021 of seabird at-sea surveys available in the North Pacific Pelagic Seabird Database (NPPSD; Drew and Piatt 2015). We modeled joint dynamic species
Data Supporting Walrus Areas of Use in the Chukchi Sea During Sparse Sea Ice Cover Data Supporting Walrus Areas of Use in the Chukchi Sea During Sparse Sea Ice Cover
The dataset consists of geospatial files depicting the estimated June-to-November distribution of walrus foraging and occupancy during a four year period of sparse sea ice cover above the Chukchi Sea continental shelf (2008-2011). The walrus distribution and utilization estimates are based on location data from satellite-linked radio-tracked walruses in the Chukchi Sea (2008-2011)...
Walrus Haulout and In-water Activity Levels Relative to Vessel Interactions in the Chukchi Sea, 2012-2015 Walrus Haulout and In-water Activity Levels Relative to Vessel Interactions in the Chukchi Sea, 2012-2015
These data were used to evaluate effects of vessel exposure on Pacific walrus (Odobenus rosmarus divergens) behaviors. We obtained greater than 120,000 hours of location and behavior (foraging, in-water not foraging, hauled out) data from 218 satellite-tagged walruses and linked them to vessel locations from the marine Automated Information System. This yielded 206 vessel-exposed walrus...
U.S. Fish and Wildlife Service Tracking Data for Steller's Eiders (Polysticta stelleri) U.S. Fish and Wildlife Service Tracking Data for Steller's Eiders (Polysticta stelleri)
This data release includes 2 child items with tracking data for Steller's Eider, a species of seaduck that breeds throughout the circumpolar Arctic and spends the winter in coastal areas of western and southwestern Alaska. The Alaska-breeding population is listed as threatened under provisions of the Endangered Species Act. Child Item 1: "U.S. Fish and Wildlife Service Argos Satellite...
Nearshore Fish Isotope Values, Beaufort Sea, Alaska, 2017-2019 Nearshore Fish Isotope Values, Beaufort Sea, Alaska, 2017-2019
This dataset contains isotope results of stable isotope (δ13C and δ15N) and radicoarbon (F14C) analyses of muscle tissue from fish collected in the nearshore Beaufort Sea, Alaska in summers 2017-2019.
Rocky Intertidal Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park Rocky Intertidal Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park
This data package includes four (4) child items with data from the Gulf Watch Alaska (GWA) long-term monitoring program (nearshore monitoring component) rocky intertidal study. Child Item One: "Rocky Intertidal Sea Star Size, Count, and Disease Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park". The data include: (1) size and disease state...
Pacific Walrus Coastal Haulout Occurrences Interpreted from Satellite Imagery Pacific Walrus Coastal Haulout Occurrences Interpreted from Satellite Imagery
This dataset is derived from images from a variety of Earth observing satellite imagery sources collected at known walrus coastal haulouts in Alaska and Chukotka, Russia. Earth observing imagery sources used in this data release include (but are not limited to) optical imagery collections by: (1) the European Space Agency's Sentinel-2 mission, (2) the Plant Labs Planet Scope...
Bivalve Shell Growth Indices, Chukchi Sea, Alaska, 1867-2015 Bivalve Shell Growth Indices, Chukchi Sea, Alaska, 1867-2015
This dataset contains the growth index from annual growth bands in the shells of two bivalve clam species (Astarte borealis and Liocyma fluctuosa) captured in the Chukchi Sea, Alaska. The growth index is based on a measurement of the annual growth increment width that has been detrended for age-related differences in growth.
Metabolic Rates Measured in Three Captive Adult Female Walruses (Odobenus rosmarus divergens) While Resting, Swimming, and Diving Metabolic Rates Measured in Three Captive Adult Female Walruses (Odobenus rosmarus divergens) While Resting, Swimming, and Diving
This dataset contains measurements of oxygen consumption and carbon dioxide production of 3 adult female walruses (Odobenus rosmarus divergens) while resting, swimming, and diving at the Oceanografic Aquarium in Valencia, Spain. Oxygen consumption and carbon dioxide production was measured for walruses breathing under a respiratory dome while resting at the water surface, under a...
Tracking Data for Long-tailed Ducks (Clangula hyemalis) Tracking Data for Long-tailed Ducks (Clangula hyemalis)
This data release includes 2 child items with tracking data for Long-tailed Ducks, a species of seaduck that breeds throughout the circumpolar Arctic and spends the winter in coastal areas of northern and mid latitudes. Child Item 1: "Argos Satellite Tracking Data for Long-tailed Ducks (Clangula hyemalis) - Processed Data" -- Quality-controlled data collected from Argos satellite...
Wildlife Health and Genetics
Wildlife Health and Genetics
Filter Total Items: 109
Peregrine Falcon (Falco peregrinus) mtDNA and Microsatellite Genetic Data, Alaska, Canada and Russia, 1880-2012 Peregrine Falcon (Falco peregrinus) mtDNA and Microsatellite Genetic Data, Alaska, Canada and Russia, 1880-2012
This data set provides sample information, microsatellite genotype, and NCBI accession numbers for mitochondrial DNA sequences of peregrine falcons (Falco peregrinus) from North America and Russia.
Genetic Microsatellite Data from Sorex, Based on Holarctic Sampling Genetic Microsatellite Data from Sorex, Based on Holarctic Sampling
This data set describes nuclear microsatellite genotypes derived from 17 autosomal loci (Sug001, Sug002, Sug003, Sug006, Sug007, Sug008, Sug009, Sug010, Sug011, Sug012, Sug019, Sug021, Sug022, Sug023, Sug024, Sug029, Sug038) in shrews, Sorex spp.
Data Used to Assess the Acute Physiological Response of Polar Bears to Helicopter Capture Data Used to Assess the Acute Physiological Response of Polar Bears to Helicopter Capture
This dataset is in five tables with data from ecophysiological studies of free-ranging polar bears of the Southern Beaufort Sea subpopulation. They were equipped with high-resolution activity sensors, body temperature loggers, and GPS satellite-telemetry collars, to compare physiological state and activity of bears during natural behavior with that experienced by bears during helicopter...
Genetic Data from Cooper's Hawks (Accipiter cooperii), North America Genetic Data from Cooper's Hawks (Accipiter cooperii), North America
This data set describes nuclear microsatellite genotypes derived from six autosomal loci (AgCA222, Age7.1JT, BV13, BV20, NVH206, NVH195-2) in Cooper's Hawks. Samples originated from blood samples collected from live trapped birds.
Genomic Data from Ptarmigan and Grouse, Alaska Genomic Data from Ptarmigan and Grouse, Alaska
This data set provides sample data and NCBI accession information for genomic sequencing of ptarmigan and grouse from Alaska.
Pathogen and Contaminant Exposure Data from Southern Beaufort Sea Polar Bears, 2007-2014 Pathogen and Contaminant Exposure Data from Southern Beaufort Sea Polar Bears, 2007-2014
These were data collected from polar bears from the Southern Beaufort Sea during the spring between 2007 and 2014. Data include individual ID, capture date, sex and age class, whether individuals visited bowhead whale carrion sites, exposure status relative to five pathogens, and concentrations of certain persistent organic pollutants.
Temporal Viral Viability Data from Avian Influenza A Viruses Maintained in Alaska Wetlands Under Experimental and Environmental Conditions Temporal Viral Viability Data from Avian Influenza A Viruses Maintained in Alaska Wetlands Under Experimental and Environmental Conditions
Data sets containing: (1) sample collection and influenza A virus (IAV) screening information for wild ducks, (2) water temperature data from four wetlands within the Izembek National Wildlife Refuge in Alaska, USA (3) water quality measurement from four wetlands within the Izembek National Wildlife Refuge in Alaska, USA, (4) genetic sequence data for IAVs recovered from replicate...
Blood Parasite Infection, Body Mass, and Survival Data from Emperor Geese (Anser canagicus), Yukon-Kuskokwim Delta, Alaska, 2006-2016 Blood Parasite Infection, Body Mass, and Survival Data from Emperor Geese (Anser canagicus), Yukon-Kuskokwim Delta, Alaska, 2006-2016
This dataset provides two tables of blood parasite infection data collected from Emperor Geese (Anser canagicus) on Yukon-Kuskokwim Delta, Alaska, 2006-2016. Three genera of blood parasites (Leucocytozoon, Haemoproteus, Plasmodium) were detected by molecular sequencing of a 479 bp fragment of the Cytochrome-b gene. The data provided in the tables are: 1) age, sex, mass, infection status...
Data on Blood Analytes and Post-Release Survival in Spectacled Eiders (Somateria fischeri), Northern Alaska, 2010-2011 Data on Blood Analytes and Post-Release Survival in Spectacled Eiders (Somateria fischeri), Northern Alaska, 2010-2011
These data are in one table of variables that potentially influenced the immediate post-release survival of spectacled eiders (Somateria fischeri) from the Colville River Delta, Alaska marked with coelomically implanted satellite transmitters with percutaneous antennae in 2010 and 2011.
Protein and Fat Consumption of Zoo Polar Bears in 14-day Ad Libitum Trials, 2019-2020 Protein and Fat Consumption of Zoo Polar Bears in 14-day Ad Libitum Trials, 2019-2020
This is a single table containing measures of the amount of fat and meat consumed by 4 adult female and 5 adult male polar bears in U.S. zoos when provided both food sources ad libitum for 12-14 days. Trial length was intended to be 14 days, but trial dietary items ran out for two bears prior to the end of the trial (i.e., at 12 and 13 days instead of 14 days). The data set includes the...
Environmental Health and eDNA
Environmental Health and eDNA
Habitat and Landscape Change
Habitat and Landscape Change
Filter Total Items: 39
No results found.
Ecosystem Analytics
Ecosystem Analytics