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Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Erich H Peitzsch Todd M Preston Northern Rocky Mountain Science Center Sara J Oyler-McCance GS-NOROCK Data Steward Bradley C Fedy Jennifer M Fike Categories Data (3) Tag Types Theme (3) Place (3) Harvest Set (3) Tag Schemes Common geographic areas (2) USGS Thesaurus (3) None (1) ISO 19115 Topic Category (3) Common Geographic areas (1) USGS Metadata Identifier (1) View Results as: JSON ATOM CSV

Microsatellite data, boundaries of subpopulation centers, and estimated effective migration for greater sage-grouse collected in western North America between 1992 and 2015 (ver. 2.0, December 2022) Characterizing genetic structure across a species’ range is relevant for management and conservation as it can be used to define population boundaries and quantify connectivity. Here, we characterized population structure and estimated effective migration in Greater Sage-grouse (Centrocercus urophasianus). Our objectives were to (1) describe large-scale patterns of population genetic structure and gene flow and (2) to characterize genetic subpopulation centers across the range of Greater Sage-grouse. Samples from 2,134 individuals were genotyped at 15 microsatellite loci. Using standard STRUCTURE and spatial principal components analyses, we found evidence for four or six areas of large-scale genetic differentiation... Categories: Data, Data Release - Revised; Tags: Genetics, Subpopulation Center, USGS Science Data Catalog (SDC), Western North America, biota Ken Pierce's Legacy Field Notebooks and Annotated Aerial Photographs, Geological, and Topographical Maps from Across the Western United States 1963-2021 (ver. 2.0, January 2024) Ken Pierce was a Research Geologist with the U.S. Geological Survey for over 55 years and authored numerous scientific papers, geologic maps, and field trip guides. This data release contains digital scans of 64 field notebooks 713 annotated aerial photographs, and 640 annotated geologic and topographic maps authored or annotated by Ken Pierce or his collaborators. Information contained in these notebooks, aerial photographs, and maps provide much of the underpinning of Ken Pierce's research, which focused largely on the glacial and geomorphological history of Yellowstone National Park and surrounding areas. Categories: Data, Data Release - Revised; Tags: Grand Teton National Park, Idaho, Montana, USGS Science Data Catalog (SDC), USGS:63af4e9fd34e92aad3ca60c7, All tags... Wyoming, Yellowstone National Park, geology, geomorphology, geoscientificInformation, glaciology, Fewer tags Avalanche occurrence records along the Going-to-the-Sun Road, Glacier National Park, Montana from 2003-2023 (ver. 3.0, July 2023) Starting in 2003, the U.S. Geological Survey (USGS) Northern Rocky Mountain Science Center in West Glacier, MT, in collaboration with the National Park Service, collected avalanche observations along the Going to the Sun Road during the spring road-clearing operations. The spring road-clearing along Going to the Sun Road utilized a team of avalanche specialists from the USGS and Glacier National Park to communicate the potential avalanche hazard to crews working to clear the road of snow in preparation for summer visitation. The operations typically begin around April 1st and continue through mid-June each year. The dataset includes all of the specific details collected for each avalanche occurrence and conforms... Categories: Data, Data Release - Revised; Tags: CCME-avalanche, Glacier National Park, Going-to-the-Sun Road, Montana, North West Montana, All tags... USGS Science Data Catalog (SDC), United States, climatologyMeteorologyAtmosphere, cryosphere, environment, field inventory and monitoring, geomorphology, snow, snow and ice cover, snow avalanche, Fewer tags