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This dataset provides clam species abundance and size data from intertidal and subtidal mixed sediment habitats in Glacier Bay National Park and Preserve (GBNPP). Data are provided for all observed clams, horse mussels, or urchins 14 mm or larger. Sampling involved excavating 25 cm of substrate from quadrats (approximately 0.25 sq meter) along transects at random and selected sites, 10 quadrats at the 0 Mean Lower Low Water (MLLW) tide level for intertidal sampling and 20 quadrats at approximately 9 m depth for subtidal sampling. Site and taxonomic information are provided. Abundance and size data are provided in two tables with different data configurations: (1) a compact version with data for those species observed...
Categories: Data,
Data Release - Revised;
Tags: Alaska,
Animal and plant census,
Aquatic Biology,
Aquatic biology,
Benthic habitat,
This is a child item of the USGS Data Release: https://doi.org/10.5066/P9A7ITFH This dataset is one table with time-linked behavior data derived from video camera collars on polar bears on land near Churchill, Manitoba, Canada. Eighteen polar bears were equipped with video-camera collars (Vertex Plus collar with camera option, Vectronic Aerospace GmbH, Berlin, Germany) for 19 - 23 days in 2019, 2021, and 2022.
Categories: Data,
Data Release - Revised;
Tags: Animal behavior,
Animals/Vertebrates,
Bears,
Bioenergetics,
Biogeography,
This is a child item of the USGS Data Release: https://doi.org/10.5066/P9A7ITFH This dataset is one table with GPS locations collected by satellite-linked GPS receivers on collars (Vertex Plus collar with camera option, Vectronic Aerospace GmbH, Berlin, Germany) attached to 20 polar bears that were instrumented on land near Churchill, Manitoba, Canada for 19 - 23 days in 2019, 2021, and 2022.
Categories: Data,
Data Release - Revised;
Tags: Animal behavior,
Animals/Vertebrates,
Bears,
Bioenergetics,
Biogeography,
Since the late 1950s, the USGS has maintained a long-term glacier mass-balance program at key North American glaciers. Measurements began on South Cascade Glacier, WA in 1958, expanding to Gulkana and Wolverine glaciers, AK in 1966, and later Sperry Glacier, MT in 2005. The Juneau Icefield Research Program has measured glacier mass balance on Lemon Creek since the mid-1940s, with USGS providing complimentary seasonal measurements of Lemon Creek beginning in 2014 (JIRP; McNeil et al., 2020). Direct field measurements of point glaciological data are combined with weather and geodetic data to estimate the seasonal and annual mass balance at each glacier in both a conventional and reference surface format (Cogley and...
Categories: Data,
Data Release - Revised;
Tags: Ablation Zones/Accumulation Zones,
Alaska,
Cryosphere,
GeoScientificInformation,
Glaciation,
These data describe observations of sea otter foraging behavior in Glacier Bay National Park and Preserve. Data consist of dive and surface times, success in prey retrieval, prey item, prey quantity, and size. Additionally, location of observations, and age class, sex, and pup status of the focal sea otter were also recorded.
Categories: Data;
Tags: Alaska,
Animals/Invertebrates,
Animals/Vertebrates,
Benthic ecosystems,
Biota,
The data package "Sea Otter Aerial Survey Data from Glacier Bay National Park and Preserve, 1999-2012" provides raw data for examining abundance and distribution of northern sea otters (Enhydra lutris kenyoni) in Glacier Bay National Park and Preserve in southeast Alaska, based on data collected during a series of population-wide aerial surveys. The USGS aerial sea otter surveys have been completed multiple times using consistent methodology involving aerial-based counts. The surveys provide data and a population estimate that Park and other Federal management agencies use for decision making and planning additional research. This data package includes a series of files with the raw digital data that was used for...
This is a child item of the USGS Data Release: https://doi.org/10.5066/P9A7ITFH This dataset is one table with archival logger data containing measures of tri-axial acceleration and ambient temperature measured at 16 Hz in collars (Vertex Plus collar with camera option, Vectronic Aerospace GmbH, Berlin, Germany) attached to 20 polar bears that were instrumented on land near Churchill, Manitoba, Canada for 19 - 23 days in 2019, 2021, and 2022.
Categories: Data,
Data Release - Revised;
Tags: Animal behavior,
Animals/Vertebrates,
Bears,
Bioenergetics,
Biogeography,
This data release includes 4 child items with data regarding metabolic rate, body composition, diet, behavior, blood chemistry, stable isotope, tri-axial accelerometer, and GPS locations of polar bears (Ursus maritimus) on land, Western Hudson Bay, Canada, 2019-2022. Child Item 1: "GPS Location Data from Polar Bears (Ursus maritimus) Instrumented on Land, Western Hudson Bay, Canada, 2019-2022" Child Item 2: "Metabolic Rate, Body Composition, and Blood Biochemistry Data from Polar Bears (Ursus maritimus) on Land, Western Hudson Bay, Canada, 2019-2022" Child Item 3: "Tri-axial Accelerometer and Temperature Data from Polar Bears (Ursus maritimus) Instrumented on Land, Western Hudson Bay, Canada, 2019-2022" Child Item...
Categories: Data,
Data Release - Revised;
Tags: Animal behavior,
Animals/Vertebrates,
Bears,
Bioenergetics,
Biogeography,
This is a child item of the USGS Data Release: https://doi.org/10.5066/P9A7ITFH This dataset is one table with specific activity measures of deuterium oxide and oxygen-18, body mass, breath oxygen consumption and carbon dioxide emission, and blood biochemistry (blood urea nitrogen and creatinine and serum progesterone) data for 20 polar bears on land near Churchill, Manitoba, Canada in 2019, 2021, and 2022.
Categories: Data,
Data Release - Revised;
Tags: Animal behavior,
Animals/Vertebrates,
Bears,
Bioenergetics,
Biogeography,
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