16 datasets found
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Federal
Northeast muskox population sex and age composition summary for all areas (26A+B and 26C (Arctic NWR) in Alaska and northern Yukon), 1972-2011
Department of the Interior —
During June, we perform ground-based composition counts to estimate calf production, recruitment, and adult sex ratio. We have radiocollared over 100 muskoxen in... -
Federal
Predicting future grizzly bear habitat use in the Bitterroot Ecosystem under recolonization and reintroduction scenarios: spatial data
Department of the Interior —
Grizzly bear (Ursus arctos) habitat use maps delineate predicted habitat use for grizzly bears around the Bitterroot Ecosystem (BE), a federally designated recovery... -
Federal
Stable Isotope Data from Diets and Tissues of Captive Bears Fed Experimental Diets
Department of the Interior —
This dataset contains stable isotope incorporation and discrimination results for several sets of feeding experiments with captive brown and polar bears. Experiments... -
Federal
Grizzly Bear Space Use in the US Northern Rocky Mountains (ver. 3.0, July 2024)
Department of the Interior —
Over the past two centuries, persecution and habitat loss caused grizzly bears (Ursus arctos) to decline from a population of approximately 50,000 individuals to only... -
Federal
Brown Bear Spring Energetics, Alaska, 2014-2017
Department of the Interior —
These data are the data for spring body composition and energy content for adult female brown bears from Gates of the Arctic, Lake Clark, Kodiak, and Katmai, Alaska,... -
Federal
Brown Bear Phenotypic Plasticity, Alaska, 2013-2016
Department of the Interior —
These data are the data for age, skull size, body length, and lean mass for Gates of the Arctic, Lake Clark, Kodiak, and Katmai, Alaska, 2013-2016. -
Federal
Measures of Oxygen Consumption and Kinematics of Captive Polar Bears (Ursus maritimus) and Captive Grizzly Bears (Ursus arctos) while Resting and Walking in a Metabolic Chamber
Department of the Interior —
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... -
Federal
Energetic Costs of Locomotion in Bears
Department of the Interior —
This dataset contains measures of tri-axial acceleration, oxygen consumption, and kinematic measures from two captive polar bears and seven captive grizzly bears... -
Federal
Detection histories of grizzly bears in Grand Teton National Park, 2014-2015
Department of the Interior —
This dataset contains detection histories of grizzly bears in areas of Grand Teton National Park that are open for elk harvest as part of the Elk Reduction Program.... -
Federal
Distribution of the Yellowstone Grizzly Bear (2000-2014)
Department of the Interior —
The grizzly bear distribution boundary delineates the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period... -
Federal
Documented known and probable grizzly bear mortalities in the Greater Yellowstone Ecosystem, 2015-2024 (ver. 4.0 May 2025)
Department of the Interior —
The Interagency Grizzly Bear Study Team (IGBST) evaluates mortalities for population segments within the DMA by deriving estimates of total mortality for independent-... -
Federal
Predicted grizzly bear movement pathways in Central Montana: spatial data
Department of the Interior —
Grizzly bears (Ursus arctos) have been increasingly observed in central Montana’s plains in recent years. To assist with conservation planning, we sought to predict... -
Federal
Predicted connectivity pathways for grizzly bears between the Selkirk and Cabinet-Yaak Ecosystems: spatial data
Department of the Interior —
Grizzly bear (Ursus arctos) connectivity pathways for the Selkirk to Cabinet-Yaak Ecosystems delineate predicted movement routes for grizzly bears between these... -
Federal
Recreation Survey Results in Brown Bear Habitats, 2013
Department of the Interior —
These data are the results of a modified Delphi survey in which expert opinion was solicited on the occurrence and frequency of recreational activities in brown bear... -
Federal
Predicted connectivity pathways between grizzly bear ecosystems in Western Montana: spatial data
Department of the Interior —
Grizzly bear (Ursus arctos) connectivity pathways delineate predicted movement routes for grizzly bears between federally designated recovery zones in and near... -
Federal
Predicted grizzly bear habitat use in Western Montana: spatial data
Department of the Interior —
Grizzly bear (Ursus arctos) habitat use maps delineate predicted habitat use for grizzly bears around federally designated recovery zones in and near western Montana....
16 datasets found