Title: Study area description
Author: Rowland, Mary M.; Leu, Matthias
Source: Hanser, S.E.; Leu, M.; Knick, S.T.; Aldridge, C.L., eds. Sagebrush ecosystem conservation and management: ecoregional assessment tools and models for the Wyoming Basins. Lawrence, KS: Allen Press: 10-45. Chapter 1.
Description: The boundary for the Wyoming Basins Ecoregional Assessment (WBEA) was largely determined by the co-occurrence of some of the largest tracts of intact sagebrush (Artemisia spp.) remaining in the western United States with areas of increasing resource extraction. The WBEA area includes two ecoregions in their entirety, Wyoming Basins and Utah-Wyoming Rocky Mountains, and portions of two others (Southern Rocky Mountains and Middle Rockies-Blue Mountains). Over half the study area is in Wyoming; the remainder includes parts of Colorado, Utah, Idaho, and Montana. Private landowners manage most (33.1%) of the land base in the WBEA, followed by the U.S. Forest Service (27.3%) and U.S. Bureau of Land Management (25.6%). Sagebrush is the dominant land cover type in the study area, totaling >130,000 km2; nearly half the sagebrush in the WBEA is managed by the U.S. Bureau of Land Management. Sagebrush in the WBEA faces many potential threats that also influence the broader sagebrush ecosystem. Climate change, drought, land-use practices (e.g., livestock grazing, oil and gas development), and human development have eliminated and fragmented the sagebrush ecosystem, altered fire regimes, and accelerated the invasion of exotic plants such as cheatgrass (Bromus tectorum). Less than 2% of sagebrush in the WBEA is permanently protected from land cover conversion.
Keywords: ecoregional assessment, land cover, sagebrush, threats, Wyoming Basins
View or Print this Publication (1,016 KB)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- You may send email to email@example.com to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
Rowland, Mary M.; Leu, Matthias. 2011. Study area description. In: Hanser, S.E.; Leu, M.; Knick, S.T.; Aldridge, C.L., eds. Sagebrush ecosystem conservation and management: ecoregional assessment tools and models for the Wyoming Basins. Lawrence, KS: Allen Press: 10-45.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility