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"A riveting history of the American West told for the first time through the pioneering women who used the challenges of migration and settlement as opportunities to advocate for their rights, and transformed the country in the process. Between 1840 and 1910, over half a million men and women traveled deep into the underdeveloped American West, the vast lands that extended from the Great Plains to the Pacific Ocean. Survival in this uncharted region...
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Trumpeter Swans require shallow-water wetlands that produce extensive, luxuriant, and diverse stands of submerged aquatic vegetation. These kinds of wetlands, with some recognized physical and biological characteristics, fulfill functions important for swans of all age classes. The following information was developed based on data and publications from past investigations and the collective knowledge of three biologists (Dave Lockman, Dan Stevenson,...
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We used three basic indicators of watershed integrity: hydrologic function, water quality, and upland wildlife habitat to evaluate potential land cover changes within the upper Yellowstone River watershed. A satellite-based land cover classification was completed for 2,474,141 acres within the Yellowstone River basin (10070001-Yellowstone Headwaters and 10070002-Upper Yellowstone 4th code subbasins) using Landsat satellite imagery dated July 13, 1999,...
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Semipermanent GPS (SPGPS) is an alternative to conventional campaign or survey-mode GPS (SGPS) and to continuous GPS (CGPS) that offers several advantages for monitoring ground deformation. Unlike CGPS installations, SPGPS stations can be deployed quickly in response to changing volcanic conditions or earthquake activity such as a swarm or aftershock sequence. SPGPS networks can be more focused or more extensive than CGPS installations, because SPGPS...
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To manage America's 991,479 km2 (245 million acres) of public BLM lands for such mixed uses as natural resource extraction, wildlife, and recreation requires knowledge about effects of habitat alterations. Two of North America?s largest natural gas fields occur in the southern region of the Greater Yellowstone Ecosystem (Wyoming), an area that contains >100,000 wintering ungulates. During a 5-year period (2005?2009), we concentrated on patterns of...
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Selection of habitat components by ungulates associated with parturition sites varies among and within species depending upon vulnerability to predators, variation in local topography and climate regines, and the length of time that the maternal-neonatal unit spends at or near the parturition location. We marked 169 parturition locations of elk (Cervus elaphus nelsoni) in western Wyoming using vaginal implant transmitters and evaluated parturition-specific...
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The Greater Yellowstone Ecosystem (GYE) is a large, nearly intact ecosystem with significant protection that has often been considered an ideal location to examine coupled human-environment interactions due to the region's complex mosaic of private and public lands, competing natural resource uses, and rapid population growth. A transition toward sustainability suggests that current societal and economic needs can be met while simultaneously maintaining...