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We investigated experimental warming and simulated grazing (clipping) effects on rangeland quality, as indicated by vegetation production and nutritive quality, in winter-grazed meadows and summer-grazed shrublands on the Tibetan Plateau, a rangeland system experiencing climatic and pastoral land use changes. Warming decreased total aboveground net primary productivity (ANPP) by 40 g.m?�.yr?� at the meadow habitats and decreased palatable ANPP (total ANPP minus non-palatable forb ANPP) by 10 g.m?�.yr?� at both habitats. The decreased production of the medicinal forb Gentiana straminea and the increased production of the non-palatable forb Stellera chamaejasme with warming also reduced rangeland quality. At the shrubland...
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This is an aggregate dataset for the DRECP 12 km buffer region, depicting the geographic boundaries of Grazing Allotments within BLM managed public lands. An allotment is an area of land designated and managed for grazing of livestock (43 CFR 4100.0-5). An allotment may include private, state, and public lands under the jurisdiction of the Bureau of Land Management and/or other federal agencies. An allotment may be subdivided into pastures. Range improvement projects are not depicted within this dataset.
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This data has been collected by the U.S. Bureau of Land Management (BLM) in New Mexico at both the New Mexico State Office and the various field offices. Collection began in the 1980's using the BLM's ADS software to digitize data m the original case files. In the mid to late 1990's the data was converted from ADS to ArcInfo software. Collection continued into the 1990s and has been updated regularly until June 2000 when it was merged into a statewide coverage. In this edition, all updates were made in the area managed by the Carlsbad Field Office. Allotments not included in the first edition were added using on-screen digitizing from case file maps at various scales. Corrections were also made to many allotment...
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The RMU_UNIT feature class depicts the boundaries of the range allotments, general resource areas, and wild horse and burro territories on the Prescott National Forest and is part of the USFS Southwestern Region Core Data Project. This project is designed to generate and maintain 15 vertically integrated resource data layers which are standardized across the Southwestern Region. These 15 layers are derived from a Master Arc coverage which maintains vertical integration.The RMU_UNIT feature class depicts the boundaries of the range allotments, general resource areas, and wild horse and burro territories on the Prescott National Forest and is part of the USFS Southwestern Region Core Data Project. This project is...
Tags: grazing, range
The distribution of the greater sage-grouse (hereafter sage-grouse; Centrocercus urophasianus) has declined to 56% of its pre-settlement distribution (Schroeder et al. 2004) and abundance of males attending leks has decreased substantially over the past 50 years throughout the species’ range (Garton et al. 2011, Garton et al. 2015, WAFWA 2015). Livestock grazing is a common land use within sage-grouse habitat, and livestock grazing has been implicated by some experts as one of numerous factors contributing to sage-grouse population declines (Beck and Mitchell 2000, Schroeder et al. 2004). However, there are also numerous mechanisms by which livestock grazing might benefit sage-grouse (Beck and Mitchell 2000, Crawford...
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Historical disturbance regimes are often considered a critical element in maintaining native plant communities. However, the response of plant communities to disturbance may be fundamentally altered as a consequence of invasive plants, climate change, or prior disturbances. The appropriateness of historical disturbance patterns under modern conditions and the interactions among disturbances are issues that ecologists must address to protect and restore native plant communities. We evaluated the response of Artemisia tridentata ssp. wyomingensis (Beetle & A. Young) S.L. Welsh plant communities to their historical disturbance regime compared to other disturbance regimes. The historical disturbance regime of these...
INTERIOR COLUMBIA RIVER BASIN MANAGEMENT PROJECT; ADA, ADAMS, BANNOCK, BENEWAH, BINGHAM, BLAINE, BOISE, BONNER, BONNEVILLE, BOUNDARY, BUTTE, CAMAS, CANYON, CARIBOU, CASSIA, CLARK, CLEARWATER, CUSTER, ELMORE, FREMONT, GEM, GOODING, IDAHO, JEFFERSON, JEROME, KOOTENAI, LATAH, LEMHI, LEWIS, LINCOLN, MADISON, MINIDOKA, NEZ PERCE, ONEIDA, OWYHEE, PAYETTE, POWER, SHOSHONE, TETON, TWIN FALLS, VALLEY, AND WASHINGTON COUNTIES, IDAHO; DEER LODGE, FLATHEAD, GRANITE, LAKE, LEWIS AND CLARK, LINCOLN, MINERAL, MISSOULA, POWELL, RAVALLI, SANDERS, AND SILVER BOW COUNTIES, MONTANA; BAKER, CROOK, DESCHUTES, GILLIAM, GRANT, HARNEY, HOOD RIVER, JEFFERSON, KLAMATH, LAKE, MALHEUR, MORROW, SHERMAN, UMATILLA, UNION, WALLOWA, WASCO, AND WHEELER COUNTIES, OREGON; AND ADAMS, ASOTIN, BENTON, CHELAN, COLUMBIA, DOUGLAS, FERRY, FRANKLIN, GARFIELD, GRANT, KITTITAS, KLICKITAT, LINCOLN, OKANOGAN, PEND OREILLE, SPOKANE, STEVENS, WALLA WALLA, WHITMAN, AND YAKIMA COUNTIES, WASHINGTON (DRAFT SUPPLEMENT TO THE DRAFT ENVIRONME


map background search result map search result map Interaction of historical and nonhistorical disturbances maintains native plant communities BLM Grazing Allotments, DRECP Grazing Allotments on the Prescott National Forest Bureau of Land Management (BLM) Grazing Allotments in New Mexico Interaction of historical and nonhistorical disturbances maintains native plant communities Grazing Allotments on the Prescott National Forest BLM Grazing Allotments, DRECP Bureau of Land Management (BLM) Grazing Allotments in New Mexico