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Location Folder Show Tree ROOT _ScienceBase Catalog __Northern Rocky Mountain Science Center ___IGBST Data releases for IGBST publications Grizzly Bear Boundary Layers Grizzly Bear Distribution Grizzly Bear Mortality Data Filters Date Range Past year (2) Past month (1) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (2) Types Downloadable (2) Map Service (2) OGC WFS Layer (2) OGC WMS Layer (2) Shapefile (2) Contacts Frank T van Manen Northern Rocky Mountain Science Center U.S. Geological Survey - ScienceBase Matthew J Gould Mark A Haroldson More... Categories Data (5) Data Release - In Progress (1) Data Release - Revised (1) Tag Types Place (5) Theme (5) USGS Scientific Topic Keyword (3) Harvest Set (4) Tag Schemes None (5) Common geographic areas (5) USGS Thesaurus (5) ISO 19115 Topic Category (4) Geographic Names Information System (3) View Results as: JSON ATOM CSV Browse Folder

Occupied Range of the Yellowstone Grizzly Bear 2008-2022 The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 2008-2022. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation.The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear VHF telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone Ecosystem during 2008 to 2022. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Beaverhead-Deerlodge, Bridger-Teton, Caribou-Targhee, Custer-Gallatin, Ecology, All tags... Grand Teton, Grand Teton, Greater Yellowstone Ecosystem, Grizzly Bear, Idaho, Montana, Occupancy, Shoshone, USGS Science Data Catalog (SDC), Wildlife Biology, Wyoming, Yellowstone, Yellowstone, bears, biota, boundary, distribution, ecosystems, Fewer tags Documented known and probable grizzly bear mortalities in the Greater Yellowstone Ecosystem, 2015-2023 (ver. 3.0, June 2024) The Interagency Grizzly Bear Study Team (IGBST) evaluates mortalities for population segments within the DMA by deriving estimates of total mortality for independent-age (2 years or older) females and independent-age males, including estimates of unknown/unreported mortalities based on Cherry et al. (2002). We then determine the total annual mortality rate for these segments as a percent of their respective population estimates. For dependent-age bears (less than 2 years old), we determine the percent of human-caused mortality relative to size of the population segment but do not include estimates of unknown/unreported mortality. Mortality data in this data release represent the individual records documented by... Categories: Data, Data Release - Revised; Tags: Greater Yellowstone Ecosystem, Greater Yellowstone Ecosystem, Idaho, Montana, USGS Science Data Catalog (SDC), All tags... United States, Ursus arctos, Wyoming, biota, ecology, grizzly bear, human-caused mortality, management removal, mortalities, natural mortality, Fewer tags Distribution of the Yellowstone Grizzly Bear (2006-2020) The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 2006-2020. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation.The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear VHF telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone Ecosystem during 2006 to 2020. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Beaverhead-Deerlodge, Bridger-Teton, Caribou-Targhee, Custer-Gallatin, Ecology, All tags... Grand Teton, Grand Teton, Greater Yellowstone Ecosystem, Grizzly Bear, Idaho, Idaho, Montana, Montana, Occupancy, Shoshone, USGS Science Data Catalog (SDC), Wildlife Biology, Wyoming, Wyoming, Yellowstone, Yellowstone, bears, boundary, distribution, ecosystem management, Fewer tags Provisional documented known and probable grizzly bear mortalities in the Greater Yellowstone Ecosystem, 2024 (Provisional Release, updated 2024-09-03) These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data. The Interagency Grizzly Bear Study Team (IGBST) evaluates mortalities for population segments within the DMA by deriving estimates of total mortality for independent-age (2 years or older) females and independent-age males, including estimates of unknown/unreported mortalities based on Cherry et al. (2002). We then determine... Categories: Data, Data Release - In Progress; Tags: Greater Yellowstone Ecosystem, Greater Yellowstone Ecosystem, Idaho, Montana, United States, All tags... Ursus arctos, Wyoming, biota, ecology, grizzly bear, human-caused mortality, management removal, mortalities, natural mortality, Fewer tags Body composition data of grizzly bears in the Greater Yellowstone Ecosystem 2000-2020 Understanding evolutionary processes that drive population dynamics is critical in ecology. Measuring the performance-density relationship in long-lived mammalian species demands long-term data, limiting the ability to observe such mechanisms. We tested density-dependent (intrinsic) and density-independent (extrinsic) drivers of body composition of grizzly bears (Ursus arctos) in the Greater Yellowstone Ecosystem over two decades. Categories: Data; Tags: Greater Yellowstone Ecosystem, Idaho, Montana, USGS Science Data Catalog (SDC), United States, All tags... Ursus arctos, Wildlife Biology, Wyoming, Yellowstone National Park, bear density, biota, body composition, body fat, ecology, grizzly bear, lean body mass, Fewer tags