Yellowstone's Destabilized Ecosystem

Yellowstone's Destabilized Ecosystem

Author: Frederic H. Wagner

Publisher: Oxford University Press

Published: 2006-05-25

Total Pages: 386

ISBN-13: 0198033796

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Wagner, one of our most distinguished wildlife biologists, is a strong critic of ecological practices in the national parks. This book provides an assessment of the ecological history of Yellowstone's northern range, since before the park existed, showing the impact of US Park Service policies on the health of the areas they oversee. He demonstrates that elk had been historically rare throughout the region and that overgrazing by elk has seriously degraded the landscape and altered the structure of the area. This is a major contribution to reconstructing the ecology of this region over the course of the past 500 years. It is also a critique of US Park Service management policies and their stewardship of the nation's most cherished natural areas. Wagner's book will generate substantial attention and debate both in the scientific and policy/management communities.


Yellowstone's Northern Range

Yellowstone's Northern Range

Author:

Publisher:

Published: 1997

Total Pages: 148

ISBN-13:

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Yellowstone's northern range has inspired one of this century's most productive, if sometimes bitter, dialogues on the management of a wildland ecosystem. Document presents new scientific research about the range and synthesizes information that has previously been available only in specialized and technical journals. Interprets and summarizes the work of dozens of ecologists and other researchers from across the scientific community and provides Yellowstone National Park's formal administrative position on the northern range grazing issue.


The Western Range Revisited

The Western Range Revisited

Author: Debra L. Donahue

Publisher: University of Oklahoma Press

Published: 1999

Total Pages: 404

ISBN-13: 9780806132983

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Livestock grazing is the most widespread commercial use of federal public lands. The image of a herd grazing on Bureau of Land Management or U.S. Forest Service lands is so traditional that many view this use as central to the history and culture of the West. Yet the grazing program costs far more to administer than it generates in revenues, and grazing affects all other uses of public lands, causing potentially irreversible damage to native wildlife and vegetation. The Western Range Revisited proposes a landscape-level strategy for conserving native biological diversity on federal rangelands, a strategy based chiefly on removing livestock from large tracts of arid BLM lands in ten western states: Arizona, California, Colorado, Idaho, Nevada, New Mexico, Oregon, Utah, Washington, Wyoming. Drawing from range ecology, conservation biology, law, and economics, Debra L. Donahue examines the history of federal grazing policy and the current debate on federal multiple-use, sustained-yield policies and changing priorities for our public lands. Donahue, a lawyer and wildlife biologist, uses existing laws and regulations, historical documents, economic statistics, and current scientific thinking to make a strong case for a land-management strategy that has been, until now, "unthinkable." A groundbreaking interdisciplinary work, The Western Range Revisited demonstrates that conserving biodiversity by eliminating or reducing livestock grazing makes economic sense, is ecologically expedient, and can be achieved under current law.


Ecological Dynamics on Yellowstone's Northern Range

Ecological Dynamics on Yellowstone's Northern Range

Author: National Research Council

Publisher: National Academies Press

Published: 2002-02-01

Total Pages: 199

ISBN-13: 0309083451

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Ecological Dynamics on Yellowstone's Northern Range discusses the complex management challenges in Yellowstone National Park. Controversy over the National Park Service's approach of "natural regulation" has heightened in recent years because of changes in vegetation and other ecosystem components in Yellowstone's northern range. Natural regulation minimizes human impacts, including management intervention by the National Park Service, on the park ecosystem. Many have attributed these changes to increased size of elk and other ungulate herds. This report examines the evidence that increased ungulate populations are responsible for the changes in vegetation and that the changes represent a major and serious change in the Yellowstone ecosystem. According to the authors, any human intervention to protect species such as the aspen and those that depend on them should be prudently localized rather than ecosystem-wide. An ecosystem-wide approach, such as reducing ungulate populations, could be more disruptive. The report concludes that although dramatic ecological change does not appear to be imminent, approaches to dealing with potential human-caused changes in the ecosystem, including those related to climate change, should be considered now. The need for research and public education is also compelling.