Téléchargez le livre : Exotic Brome-Grasses in Arid and Semiarid Ecosystems of the Western US

Exotic Brome-Grasses in Arid and Semiarid Ecosystems of the Western US

Causes, Consequences, and Management Implications de

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Éditeur :

Springer


Collection :

Springer Series on Environmental Management

Paru le : 2016-01-22

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Description

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 as Bromus tectorum and B. rubens, have since became the dominant cover on millions of hectares. Here, millenia of ecosystem development led to landscapes that would otherwise be dominated by perennial shrubs, herbs, and biotic soil crusts that were able to persist in spite of variable and scarce precipitation. This native ecosystem resilience is increasingly coveted by land owners and managers as more hectares lose their resistance to Bromus grasses and similar exotics and 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 wildfi res 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.
Pages
475 pages
Collection
Springer Series on Environmental Management
Parution
2016-01-22
Marque
Springer
EAN papier
9783319249285
EAN PDF
9783319249308
Informations sur l'ebook
Nombre pages copiables
4
Nombre pages imprimables
47
Taille du fichier
12483 Ko
Prix
147,69 €
EAN EPUB
9783319249308
Informations sur l'ebook
Nombre pages copiables
4
Nombre pages imprimables
47
Taille du fichier
4628 Ko
Prix
147,69 €

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