Disturbance Dynamics of Pitcher's Thistle (Cirsium Pitcheri) Populations in Great Lakes Sand Dune Landscapes PDF Download
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Author: A. Kathryn McEachern
Publisher:
ISBN:
Category : Cirsium pitcheri
Languages : en
Pages : 472
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Book Description
Author: A. Kathryn McEachern
Publisher:
ISBN:
Category : Cirsium pitcheri
Languages : en
Pages : 472
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Book Description
Author: Tara L. Suring
Publisher:
ISBN:
Category :
Languages : en
Pages : 132
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Book Description
Author: Christy A. Brigham
Publisher: Springer Science & Business Media
ISBN: 3662093898
Category : Science
Languages : en
Pages : 370
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Book Description
Providing a quantitative assessment of threatened plant populations, that holds for varying management scenarios, has become an essential part of conservation planning. Here, renowned plant ecologists provide information on: major threats to plants, when and where to conduct a plant viability assessment (PVA), what type of PVA to conduct, what alternative options to PVA are available, what information is required for which kind of viability assessment, what attributes of the population in question should be considered, and what the limits of the PVA would be. As such, this volume can be used as a training tool for the environmental manager or a teaching aid for reviewing the current state of knowledge on plant population viability.
Author:
Publisher: Island Press
ISBN: 9781610913959
Category : Endangered plants
Languages : en
Pages : 532
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Book Description
In April, 1993, a conference of academic biologists, agency staff members, activists. and other experts critically explored the value of ecological restoration as a conservation strategy. Restoring Diversity examines and expands on the issues set forth at that gathering, including strategy, case studies, the biology of restoration and the use of mitigation in rare plant conservation.
Author: Cynthia E. Dott
Publisher:
ISBN:
Category : Plant communities
Languages : en
Pages : 398
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 408
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Book Description
Author: William L. Halvorson
Publisher: University of Arizona Press
ISBN: 0816552401
Category : Science
Languages : en
Pages : 377
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Book Description
Our national parks are more than mere recreational destinations. They are repositories of the nation's biological diversity and contain some of the last ecosystem remnants needed as standards to set reasonable goals for sustainable development throughout the land. Nevertheless, public pressure for recreation has largely precluded adequate research and resource monitoring in national parks, and ignorance of ecosystem structure and function in parks has led to costly mistakes--such as predator control and fire suppression--that continue to threaten parks today. This volume demonstrates the value of ecological knowledge in protecting parks and shows how modest investments in knowledge of park ecosystems can pay handsome dividends. Science and Ecosystem Management in the National Parks presents twelve case studies of long-term research conducted in and around national parks that address major natural resource issues. These cases demonstrate how the use of longer time scales strongly influence our understanding of ecosystems and how interpretations of short-term patterns in nature often change when viewed in the context of long-term data sets. Most importantly, they show conclusively that scientific research significantly reduces uncertainty and improves resource management decisions. Chosen by scientists and senior park managers, the cases offer a broad range of topics, including: air quality at Grand Canyon; interaction between moose and wolf populations on Isle Royale; control of exotic species in Hawaiian parks; simulation of natural fire in the parks of the Sierra Nevada; and the impact of urban expansion on Saguaro National Monument. Because national parks are increasingly beset with conflicting views of their management, the need for knowledge of park ecosystems becomes even more critical--not only for the parks themselves, but for what they can tell us about survival in the rest of our world. This book demonstrates to policymakers and managers that decisions based on knowledge of ecosystems are more enduring and cost effective than decisions derived from uninformed consensus. It also provides scientists with models for designing research to meet threats to our most precious natural resources. "If we can learn to save the parks," observe Halvorson and Davis, "perhaps we can learn to save the world."
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 492
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Book Description
Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 906
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Book Description
Author: Peter A. Follett
Publisher: Springer Science & Business Media
ISBN: 1461545773
Category : Science
Languages : en
Pages : 314
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Book Description
Nontarget Effects of Biological Control is the first book of its kind. The environmental safety of biological control has come under scrutiny due to several areas of concerns: the irreversibility of alien introductions, the prevalence of host switching to innocuous native or beneficial species, dispersal of the biocontrol agent to new habitats away from croplands, and the lack of research on the efficacy and impact of biocontrol attempts. The debate has been strongly polarized between conservationists and biological control practitioners. Nontarget Effects of Biological Control proposes that retrospective analyses of systems in place in which nontarget effects are now documented or suspected provide the necessary information for planning and evaluating future releases to reduce risk. The book presents case histories of past biological control introductions from island and continental ecosystems.
