Wild Forests: Conservation Biology And Public PolicyIsland Press, 1994 - 300 Seiten Wild Forests presents a coherent review of the scientific and policy issues surrounding biological diversity in the context of contemporary public forest management. The authors examine past and current practices of forest management and provide a comprehensive overview of known and suspected threats to diversity. In addition to discussing general ecological principles, the authors evaluate specific approaches to forest management that have been proposed to ameliorate diversity losses. They present one such policy -- the Dominant Use Zoning Model incorporating an integrated network of "Diversity Maintenance Areas" -- and describe their attempts to persuade the U.S. Forest Service to adopt such a policy in Wisconsin. Drawing on experience in the field, in negotiations, and in court, the authors analyze the ways in which federal agencies are coping with the mandates of conservation biology and suggest reforms that could better address these important issues. Throughout, they argue that wild or unengineered conditions are those that are most likely to foster a return to the species richness that we once enjoyed. |
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... populations , sending out a stream of emigrants that may succeed in entering existing populations or founding new subpopulations . Other sub- populations on the landscape represent net population sinks in that by them- selves they would ...
... populations from one another , preventing demographic and genetic exchange . Isolated populations are often further compromised by increased edge effects , turning source pop- ulations into sinks . Isolated populations are also more ...
... populations at least in part by monitoring available habitat . This was a circular approach , since the purpose of moni- toring populations is in part to determine the amount of available habitat . For other species , actual population ...
Inhalt
Forests Then and Now | 3 |
Shadows in the Forest | 19 |
The Myth of Hearts Content | 29 |
Urheberrecht | |
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Wild Forests: Conservation Biology And Public Policy William S. Alverson,Don Waller,Walter Kuhlmann Eingeschränkte Leseprobe - 2013 |