Biodiversity (Mehr als 27.000 Ergebnisse)

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Zustand: Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc.

Zustand: Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc. Doolittle, Michael J. (illustrator).

Paperback. Zustand: Good. 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 Donahue, a lawyer and wildlife biologist, uses existing laws and regulations, historical documents, economic statistics, and current scientific thinking to make a strong case for a land-management strategy that has been, until now, ""unthinkable.""A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.…

Zustand: Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc.

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Paperback. Zustand: Very Good. In Landscape Linkages and Biodiversity experts explain biological diversity conservation, focusing on the need for protecting large areas of the most diverse ecosystems, and connecting those ecosystems with land corridors to allow species to move among them more easily.…

Paperback. Zustand: Good. In Landscape Linkages and Biodiversity experts explain biological diversity conservation, focusing on the need for protecting large areas of the most diverse ecosystems, and connecting those ecosystems with land corridors to allow species to move among them more easily.

paperback. Zustand: Good.

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Zustand: very_good. Cover may have light wear, pages in very good condition and binding is sturdy; may have other light shelf wear or creases. May have notes or highlighting. Smith, Lily (illustrator).

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Paperback. Zustand: Good. In Life in the Balance, Niles Eldredge argues that the Earth is confronting a disaster in the making--an ecological crisis that, if left unresolved, could ultimately lead to mass extinction on the scale of that which killed the dinosaurs sixty-five million years ago. Writing for general readers, he reviews compelling evidence for this "biodiversity crisis," showing that species are dying out at an unnaturally rapid rate. He demonstrates the importance of maintaining biodiversity, taking the reader on a journey that reveals the twin faces of biodiversity--over thirteen million living species and the ecosystems through which these species transform the sun's energy into life-sustaining matter. Throughout, Eldredge shows how our own fate is intricately linked with that of other species. Eldredge, one of the world's foremost paleontologists, begins by taking us to the heart of Botswana's Okavango Delta, considered by many to be among the last "Edens" left on Earth--a place where a rich assortment of organisms exist in natural equilibrium. However, it is also a place where the results of human activity--pollution, clear-cutting, water-diversion, encroaching agriculture, disease--now pose the same ecological threats that, on a worldwide scale, put the entire planet at risk. Eldredge then leads us on a fascinating exploration of the Earth's organisms--animals, plants, fungi, the microbes that underpin all life--and of the diverse ecosystems from the tundra to the tropics in which these organisms live. It is a journey that demonstrates the inherent value of the millions of species and ecosystems on Earth, and the importance of biodiversity to the entire biosphere and to humans' continued existence. Eldredge concludes that humans not only are responsible for the biodiversity crisis but also hold the key to preventing an impending Sixth Extinction. He argues that we must, among other strategies, pledge ourselves to sustainable development and the conservation of wild places. An eloquent and passionate account by one of today's leading scientists, Life in the Balance will draw new attention to one of the most pressing problems now facing the world. In this book, Eldredge explores the same themes that illuminate The American Museum of Natural History's new Hall of Biodiversity, for which he is Scientific Curator. The Hall is scheduled to open in spring 1998. …

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Zustand: very_good. Fast Free Shipping â" Very Good condition book with a firm cover and clean pages. Shows normal use and some light wear or limited notes markings. A solid, nice copy to enjoy. Doolittle, Michael J. (illustrator).

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Zustand: very_good. Fast Free Shipping â" Very Good condition book with a firm cover and clean pages. Shows normal use and some light wear or limited notes markings. A solid, nice copy to enjoy.

Zustand: good. Fast Free Shipping â" Good condition. It may show normal signs of use, such as light writing, highlighting, or library markings, but all pages are intact and the book is fully readable. A solid, complete copy that's ready to enjoy.

Zustand: good. Fast Free Shipping â" Good condition. It may show normal signs of use, such as light writing, highlighting, or library markings, but all pages are intact and the book is fully readable. A solid, complete copy that's ready to enjoy.

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Paperback. Zustand: Good. This important book for scientists and nonscientists alike calls attention to a most urgent global problem: the rapidly accelerating loss of plant and animal species to increasing human population pressure and the demands of economic development. Based on a major conference sponsored by the National Academy of Sciences and the Smithsonian Institution, Biodiversity creates a systematic framework for analyzing the problem and searching for possible solutions.…

paperback. Zustand: Fair.