Yellowstone's Destabilized Ecosystem: Elk Effects, Science, and Policy ConflictOxford University Press, 25 мая 2006 г. - Всего страниц: 392 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. |
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Стр. iv
... Ecology—Yellowstone National Park—History. 2. Yellowstone National Park—History. I. Title. QH105. W8W34 2006 577' . 09787'52—dc22 2005017301 9 8 7 6 5 4 3 2 1 Printed in the United States of America on acid-free paper To the three most ...
... Ecology—Yellowstone National Park—History. 2. Yellowstone National Park—History. I. Title. QH105. W8W34 2006 577' . 09787'52—dc22 2005017301 9 8 7 6 5 4 3 2 1 Printed in the United States of America on acid-free paper To the three most ...
Стр. viii
... Ecology describes ecological systems at an array of organizational or complexity levels ranging from landscapes and ecosystems to individual organisms, depending on the questions of interest (compare O'Neill et al. 1986; Allen and ...
... Ecology describes ecological systems at an array of organizational or complexity levels ranging from landscapes and ecosystems to individual organisms, depending on the questions of interest (compare O'Neill et al. 1986; Allen and ...
Стр. x
... ecological literature and theory. These procedures are tantamount to Chamberlain's (1965) method of multiple working hypotheses. The method avoids his ruling theory problem of considering only one hypothesis and building an illusion of ...
... ecological literature and theory. These procedures are tantamount to Chamberlain's (1965) method of multiple working hypotheses. The method avoids his ruling theory problem of considering only one hypothesis and building an illusion of ...
Стр. xi
... ecological scenario, already advocated by many archaeologists, that pre-Columbian ungulate populations in the ... ecology and the implications to national park, wilderness, and protected-area policies. Within the past 15 years, my ...
... ecological scenario, already advocated by many archaeologists, that pre-Columbian ungulate populations in the ... ecology and the implications to national park, wilderness, and protected-area policies. Within the past 15 years, my ...
Стр. xii
... Ecological Analysis and Synthesis, Santa Barbara, California. Its director, James Reichman, provided important encouragement. With the most left for last, I am deeply indebted to my wife, Marilyn, for her affection, patience, and ...
... Ecological Analysis and Synthesis, Santa Barbara, California. Its director, James Reichman, provided important encouragement. With the most left for last, I am deeply indebted to my wife, Marilyn, for her affection, patience, and ...
Содержание
1 | |
13 | |
Part III Elk Effects on Ecosystem Structure and Function | 57 |
Part IV The Role of Science in Policy Process | 305 |
References | 335 |
Index | 359 |
Другие издания - Просмотреть все
Yellowstone's Destabilized Ecosystem: Elk Effects, Science, and Policy Conflict Frederic H. Wagner Ограниченный просмотр - 2006 |
Yellowstone's Destabilized Ecosystem: Elk Effects, Science, and Policy Conflict Frederic H. Wagner Ограниченный просмотр - 2006 |
Yellowstone's Destabilized Ecosystem: Elk Effects, Science, and Policy Conflict Frederic H. Wagner Ограниченный просмотр - 2006 |
Часто встречающиеся слова и выражения
abundance animals aspen authors Barmore beaver bighorn bighorn sheep biomass Bishop bison Butte Creek censuses century clones commented competition components conifers Coughenour Coughenour and Singer decades density Despain early ecological effects elk herd elk numbers elk population Engstrom ern range erosion estimates evidence exclosures factors figure forage grasses grazing habitat herbaceous herbaceous vegetation herbivory higher elevations highlining Houston hunting impacts increase indicates inferences inside the exclosures interspecific competition Kay’s Keigley Kittams lakes Lamar River levels lower measurements ment mule deer National Park northern herd northern range ecosystem observed occurred park establishment park history park’s period photographs plants processes production pronghorn r-values reduced reported result riparian riparian zones sagebrush Schullery sediment shrub significant soil species studies suggest tannin tion trees trends ungrazed ungulate Wagner Wambolt willow decline winter range Yellowstone Yellowstone National Park