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 respiratory dome after swimming and diving, and via breath by breath respirometry using a pneumotachometer when hauled out.

This dataset contains measures of oxygen consumption from an adult female polar bear resting in a metabolic chamber.

This dataset contains measures of oxygen consumption from an adult female polar bear resting in a metabolic chamber.

This dataset contains measures of oxygen consumption and stroke frequency from 1 captive subadult female polar bear (166.5 kg) resting in the water (n = 7 sessions) and swimming and diving in a metabolic swim flume with water circulated at approximately 0.6 km/hr during swimming and diving measurements (n = 6 sessions) in September 2017.

This data release includes three datasets used to develop forecasts of autumn body condition for adult female Pacific walruses in the Chukchi Sea during mid and late century time periods. (1) The activity dataset contains daily telemetry records for 218 adult female walruses tracked for periods of 7 to 104 days during 2008-2014, in the Chukchi Sea. Records include the number of hours the walrus was in the water, number of hours the walrus was foraging, study area region where the walrus was located, depths of the foraging locations, and the proportion of the region covered by sea ice. (2) The movement dataset contains telemetry records for 94 of these walruses, giving the dates they moved from one region to another, and the date of the beginning of minimum ice period for that year. (3) The projected-ice dataset contains daily projections of ice conditions in the study area regions derived from 7 general circulation models of future ice availability for mid-century (2045-2054) and late-century (2090-2099) time periods. The movement and activity datasets were developed to model walrus activity and movement as functions of sea ice conditions. The projected-ice dataset was developed to provide input for those models to forecast future walrus activity and movement. Forecasting autumn body condition requires linkage to bioenergetics models.

This data release includes three datasets used to develop forecasts of autumn body condition for adult female Pacific walruses in the Chukchi Sea during mid and late century time periods. (1) The activity dataset contains daily telemetry records for 218 adult female walruses tracked for periods of 7 to 104 days during 2008-2014, in the Chukchi Sea. Records include the number of hours the walrus was in the water, number of hours the walrus was foraging, study area region where the walrus was located, depths of the foraging locations, and the proportion of the region covered by sea ice. (2) The movement dataset contains telemetry records for 94 of these walruses, giving the dates they moved from one region to another, and the date of the beginning of minimum ice period for that year. (3) The projected-ice dataset contains daily projections of ice conditions in the study area regions derived from 7 general circulation models of future ice availability for mid-century (2045-2054) and late-century (2090-2099) time periods. The movement and activity datasets were developed to model walrus activity and movement as functions of sea ice conditions. The projected-ice dataset was developed to provide input for those models to forecast future walrus activity and movement. Forecasting autumn body condition requires linkage to bioenergetics models.

This data package includes 5 child items with data from 9 female polar bears without dependent young in the southern Beaufort Sea in April 2014-2016. Child Item 1: "Doubly-labeled Water, Deuterium Dilution, Body Mass, and Blood Biochemistry Data from Female Polar Bears (Ursus maritimus) in the Southern Beaufort Sea by the USGS in April 2014-2016" Child Item 2: "Resting Metabolic Rates of a Captive Adult Female Polar Bear (Ursus maritimus) at the San Diego Zoo" Child Item 3: "Behavior Data from Female Polar Bears (Ursus maritimus) Instrumented in the Southern Beaufort Sea with Video Camera Collars by the USGS in April 2014-2016" Child Item 4: "Archival Logger Data from Female Polar Bears (Ursus maritimus) of the Southern Beaufort Sea by the USGS, April 2014-2016" Child Item 5: "GPS Location Data from Female Polar Bears (Ursus maritimus) Instrumented in the Southern Beaufort Sea with Video Camera Collars equipped with Satellite-linked GPS Receivers by the USGS in April 2014-2016"

This data package includes 5 child items with data from 9 female polar bears without dependent young in the southern Beaufort Sea in April 2014-2016. Child Item 1: "Doubly-labeled Water, Deuterium Dilution, Body Mass, and Blood Biochemistry Data from Female Polar Bears (Ursus maritimus) in the Southern Beaufort Sea by the USGS in April 2014-2016" Child Item 2: "Resting Metabolic Rates of a Captive Adult Female Polar Bear (Ursus maritimus) at the San Diego Zoo" Child Item 3: "Behavior Data from Female Polar Bears (Ursus maritimus) Instrumented in the Southern Beaufort Sea with Video Camera Collars by the USGS in April 2014-2016" Child Item 4: "Archival Logger Data from Female Polar Bears (Ursus maritimus) of the Southern Beaufort Sea by the USGS, April 2014-2016" Child Item 5: "GPS Location Data from Female Polar Bears (Ursus maritimus) Instrumented in the Southern Beaufort Sea with Video Camera Collars equipped with Satellite-linked GPS Receivers by the USGS in April 2014-2016"

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.

This dataset contains measures of oxygen consumption and kinematic measures from 2 captive polar bears and 7 captive grizzly bears resting and walking in a metabolic chamber.