Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 382
Book Description
Cascade Siskiyou Ecological Emphasis Area (OR,CA)
Author: Cascade Siskiyou Ecological Emphasis Area
Author: Conservation by Proxy
Author: Tim CaroPublisher: Island Press
ISBN: 159726959X
Category : Nature
Languages : en
Pages : 394
Book Description
The vast scope of conservation problems has forced biologists and managers to rely on "surrogate" species to serve as shortcuts to guide their decision making. These species-known by a host of different terms, including indicator, umbrella, and flagship species-act as proxies to represent larger conservation issues, such as the location of biodiversity hotspots or general ecosystem health. Synthesizing an immense body of literature, conservation biologist and field researcher Tim Caro offers systematic definitions of surrogate species concepts, explores biological theories that underlie them, considers how surrogate species are chosen, critically examines evidence for and against their utility, and makes recommendations for their continued use. The book clarifies terminology and contrasts how different terms are used in the real world considers the ecological, taxonomic, and political underpinnings of these shortcuts identifies criteria that make for good surrogate species outlines the circumstances where the application of the surrogate species concept shows promise Conservation by Proxy is a benchmark reference that provides clear definitions and common understanding of the evidence and theory behind surrogate species. It is the first book to review and bring together literature on more than fifteen types of surrogate species, enabling us to assess their role in conservation and offering guidelines on how they can be used most effectively.
Yurok Geography
Author: Thomas Talbot WatermanPublisher:
ISBN:
Category : California
Languages : en
Pages : 238
Book Description
Biological Opinion
Author: Mesozoic Assembly of the North American Cordillera
Author: Robert S. HildebrandPublisher: Geological Society of America
ISBN: 0813724953
Category : Science
Languages : en
Pages : 182
Book Description
"In this well-illustrated book, Hildebrand expands upon his model for the development of the North American Cordillera detailed in Special paper 457. Starting with an overview of Cordilleran geology he goes on to provide an in depth look at how the Rubian ribbon continent was assembled. He integrates the complex geology of the Cordillera into an actualistic model involving arc magmatism, arc-continent collision, slab failure magmatism, and transcurrent motion in both Rubia and the western North American margin. While much of the focus is on the assembly of the Rubian ribbon continent, Hildebrand explores its interactions with North America during the Sevier and Laramide events and concludes that North America was the lower plate in both"--Provided by publisher.
Beyond Naturalness
Author: David N. ColePublisher: Island Press
ISBN: 1597269115
Category : Science
Languages : en
Pages : 304
Book Description
The central concept guiding the management of parks and wilderness over the past century has been “naturalness”—to a large extent the explicit purpose in establishing these special areas was to keep them in their “natural” state. But what does that mean, particularly as the effects of stressors such as habitat fragmentation, altered disturbance regimes, pollution, invasive species, and climate change become both more pronounced and more pervasive? Beyond Naturalness brings together leading scientists and policymakers to explore the concept of naturalness, its varied meanings, and the extent to which it provides adequate guidance regarding where, when, and how managers should intervene in ecosystem processes to protect park and wilderness values. The main conclusion is the idea that naturalness will continue to provide an important touchstone for protected area conservation, but that more specific goals and objectives are needed to guide stewardship. The issues considered in Beyond Naturalness are central not just to conservation of parks, but to many areas of ecological thinking—including the fields of conservation biology and ecological restoration—and represent the cutting edge of discussions of both values and practice in the twenty-first century. This bookoffers excellent writing and focus, along with remarkable clarity of thought on some of the difficult questions being raised in light of new and changing stressors such as global environmental climate change.
Geological Survey Research, 1975
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 388
Book Description
Oregon Fossils
Author: Elizabeth L. OrrPublisher:
ISBN: 9780870715730
Category : Nature
Languages : en
Pages : 0
Book Description
This revised and expanded edition of Oregon Fossils includes a record of all known fossils in Oregon going back 400 million years, along with collecting localities by county, age, rock formation, and published source. The book also provides a geologic overview of the state, from ocean beaches to the high desert, from the Blue Mountains to the Siskiyous. Unique among fossil field guides, Oregon Fossils includes both specimen identification and interesting notes about their discovery, naming, and conservation. The narrative is sprinkled with biographical sketches of paleontologists who have contributed to the state's fossil record, and the text is richly illustrated with photographs, line drawings, charts, and maps. A complete bibliography lists full citations to fossil material. The only single volume that provides Oregon's fossil record and history, Oregon Fossils is well-written, well-organized guide. It is an excellent reference for classroom and library use, for researchers, and for private collectors and hobbyists.
Rewilding North America
Author: Dave ForemanPublisher:
ISBN:
Category : Nature
Languages : en
Pages : 320
Book Description
In Rewilding North America, Dave Foreman takes on arguably the biggest ecological threat of our time: the global extinction crisis. He not only explains the problem in clear and powerful terms, but also offers a bold, hopeful, scientifically credible, and practically achievable solution. Foreman begins by setting out the specific evidence that a mass extinction is happening and analyzes how humans are causing it. Adapting Aldo Leopold's idea of ecological wounds, he details human impacts on species survival in seven categories, including direct killing, habitat loss and fragmentation, exotic species, and climate change. Foreman describes recent discoveries in conservation biology that call for wildlands networks instead of isolated protected areas, and, reviewing the history of protected areas, shows how wildlands networks are a logical next step for the conservation movement. The final section describes specific approaches for designing such networks (based on the work of the Wildlands Project, an organization Foreman helped to found) and offers concrete and workable reforms for establishing them. The author closes with an inspiring and empowering call to action for scientists and activists alike. Rewilding North America offers both a vision and a strategy for reconnecting, restoring, and rewilding the North American continent, and is an essential guidebook for anyone concerned with the future of life on earth.
