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Location Folder Show Tree ROOT _ScienceBase Catalog 3DSC Alaska Science Center (ASC) Alkalic Igneous Centers of the Great Plains and Rocky Mountains: Data in Support of Critical Mineral Resource Studies AMMonitor: Remote wildlife monitoring for adaptive management Amphibian Research and Monitoring Initiative More... Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Raster (1) Types Citation (1) Downloadable (1) GeoTIFF (1) Map Service (1) Raster (1) Contacts Frank T van Manen Daniel D Bjornlie Bryn E Karabensh Northern Rocky Mountain Science Center U.S. Geological Survey More... Tag Types Theme (2) Place (2) Harvest Set (1) USGS Scientific Topic Keyword (1) Tag Schemes None (2) Geographic Names Information System (2) Common geographic areas (1) USGS Thesaurus (2) ISO 19115 Topic Category (2) USGS Biocomplexity Thesaurus (1) View Results as: JSON ATOM CSV Browse Folder

Randomized shortest paths for Grizzly Bear dispersal between the GYE and NCDE The Randomized Shortest Path (RSP) raster delineates potential dispersal paths for male-mediated gene flow between grizzly bear (Ursus arctos) populations in the Greater Yellowstone Ecosystem (GYE) and the Northern Continental Divide Ecosystem (NCDE). A RSP algorithm was used to estimate the average number of net passages for all grid cells at a spatial resolution of 300 m in the study region which spans parts of Montana, Idaho, and Wyoming. RSP rasters identify potential movement paths for 3 levels of random deviation determined by the parameter Θ (i.e., Θ = 0.01, 0.001, and 0.0001) for bears moving from an origin to a destination node. Lower values of Θ result in greater exploration and more random deviation around... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, Raster; Tags: Glacier National Park, Grizzly Bears, Idaho, Montana, Northern Continental Divide Ecosystem, All tags... Wyoming, Yellowstone Ecosytem, bears, biota, connectivity, corridor, dispersal, ecology, grizzly bear, movement, random shortest path, step-selection model, 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