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Study area description: Chapter 1

By:
and
Edited by:
Steven E. Hanser, Matthias Leu, Steven T. Knick, and Cameron L. Aldridge
https://doi.org/10.3133/cir1

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Abstract

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.

Study Area

Additional publication details

Publication type:
Book chapter
Publication Subtype:
Book Chapter
Title:
Study area description: Chapter 1
Chapter:
1
ISBN:
978-0-615-55530-0
DOI:
10.3133/cir1
Year Published:
2011
Language:
English
Publisher:
Allen Press
Publisher location:
Lawrence, Kansas
Contributing office(s):
Forest and Rangeland Ecosys Science Center
Description:
36 p.
Larger Work Type:
Book
Larger Work Subtype:
Monograph
Larger Work Title:
Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
First page:
10
Last page:
45
Country:
United States
State:
Wyoming
Online Only (Y/N):
N
Additional Online Files (Y/N):
N