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Exotic Brome-grasses in Arid and Semiarid Ecosystems of the Western Us : Causes, Consequences, and

Exotic Brome-grasses in Arid and Semiarid Ecosystems of the Western Us : Causes, Consequences, and - image 1 of 1

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Invasions by exotic grasses, particularly annuals, rank among the most extensive and intensive ways that humans are contributing to the transformation of the earth’s surface.  The problem is particularly notable with a suite of exotic grasses in the Bromus genus in the arid and semiarid regions that dominate the western United States, which extend from the dry basins near the Sierra and Cascade Ranges across the intermountain region and Rockies to about 105° longitude.  This genus includes approximately 150 species that have a wide range of invasive and non-invasive tendencies in their home ranges and in North America. Bromus species that became invasive upon introduction to North America in the late 1800’s, such asBromus tectorum and B. rubens, have since became the dominant cover on millions of acres.  Here, millenia of ecosystem development led to landscapes that would otherwise be dominated by perennial shrubs, herbs, and biotic soil crusts that was able to persist in spite of variable and scarce precipitation.  This native-ecosystem resilience is increasingly coveted by land owners and managers as more acreage loses its resistance to Bromus grasses and similar exotics as climate, land-use, and disturbance-regime changes are also superimposed.  Managers are increasingly challenged to glean basic services from these ecosystems as they become invaded.  Exotic annual grasses reduce wildlife and livestock carrying capacity and increase the frequency and extent of wildfires and associated soil erosion.  This book uses a unique ecoregional and multidisciplinary approach to evaluate the invasiveness, impacts, and management of the large Bromus genus.  Students, researchers, and practitioners interested in Bromus  specifically and invasive exotics in general will benefit from the depth of knowledge summarized in the book.
Genre: Technology, Science
Sub-Genre: Life Sciences / Ecology, Environmental Engineering + Technology
Series Title: Springer Series on Environmental Management
Format: Hardcover
Publisher: Springer Verlag
Language: English
Street Date: January 30, 2016
TCIN: 50926687
UPC: 9783319249285
Item Number (DPCI): 248-12-7698

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