Author: Francis J. SingerPublisher:
ISBN:
Category : Grazing
Languages : en
Pages : 394
Book Description
Effects of Grazing by Wild Ungulates in Yellowstone National Park
Author: Francis J. SingerPublisher:
ISBN:
Category : Grazing
Languages : en
Pages : 394
Book Description
Yellowstone's Destabilized Ecosystem
Author: Frederic H. WagnerPublisher: Oxford University Press
ISBN: 0195148215
Category : Nature
Languages : en
Pages : 386
Book Description
"The beloved Yellowstone National Park underwent a management shift in 1969 that drastically altered its landscape. This book comes at a time when scientific results are sometimes withheld so that they do not challenge policy positions. The author charges that Yellowstone-supported research has produced a faulty ecological paradigm, whether consciously or not, in order to maintain status quo of the Park's "natural-regulation" policy." "Wagner's ecosystem model of the Park's northern range focuses on a low-elevation region of the Park where a large herd of Rocky Mountain elk winters. His study spans 132 years of ecological, hydrologic, archaeological, photographic, and historic evidence and synthesizes the herd's impact over time."--BOOK JACKET.
Ecological Dynamics on Yellowstone's Northern Range
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309083451
Category : Science
Languages : en
Pages : 199
Book Description
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.
Yellowstone's Northern Range
Author: Publisher:
ISBN:
Category : Ecosystem management
Languages : en
Pages : 164
Book Description
Mammal Community Dynamics
Author: Cynthia J. ZabelPublisher: Cambridge University Press
ISBN: 9780521008655
Category : Nature
Languages : en
Pages : 740
Book Description
Table of contents
Bison Management Plan for the State of Montana and Yellowstone National Park: Final environmental impact statement
Author: Bison management for the state of Montana and Yellowstone National Park final environmental impact statement.
Author: Publisher: DIANE Publishing
ISBN: 1428961879
Category :
Languages : en
Pages : 75
Book Description
Interagency Bison Management Plan for State of Montana and Yellowstone National Park
Author: Measuring Plant Diversity
Author: Thomas J. StohlgrenPublisher: Oxford University Press
ISBN: 0199883807
Category : Science
Languages : en
Pages : 408
Book Description
Ecologists interested in assessing landscapes and ecosystems must measure biomass, cover, and the density or frequency of various key species. Recently, sampling designs for measuring species richness and diversity, patterns of plant diversity, species-environment relationships, and species distributions have become fine-grained, as it has become increasingly important to accurately map and assess rare species for conservation. This book lays out the range of current methods for mapping and measuring species diversity, for field ecologists, resource managers, conservation biologist, and students, as a tool kit for future measurements of plant diversity.
Ecology Abstracts
Author: Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 786
Book Description
Coverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.