Author: Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 64
Book Description
National Projections of Forest and Rangeland Condition Indicators
Author: Nonparametric Projections of Forest and Rangeland Condition Indicators
Author: General Technical Report PNW-GTR
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 882
Book Description
General Technical Report RMRS
Author: National Projections of Forest and Rangeland Condition Indicators
Author: Rangeland Health
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309048796
Category : Technology & Engineering
Languages : en
Pages : 201
Book Description
Rangelands comprise between 40 and 50 percent of all U.S. land and serve the nation both as productive areas for wildlife, recreational use, and livestock grazing and as watersheds. The health and management of rangelands have been matters for scientific inquiry and public debate since the 1880s, when reports of widespread range degradation and livestock losses led to the first attempts to inventory and classify rangelands. Scientists are now questioning the utility of current methods of rangeland classification and inventory, as well as the data available to determine whether rangelands are being degraded. These experts, who are using the same methods and data, have come to different conclusions. This book examines the scientific basis of methods used by federal agencies to inventory, classify, and monitor rangelands; it assesses the success of these methods; and it recommends improvements. The book's findings and recommendations are of interest to the public; scientists; ranchers; and local, state, and federal policymakers.
Agricultural Conservation Practices and Related Issues
Author: Publisher:
ISBN:
Category : Agricultural conservation
Languages : en
Pages : 412
Book Description
Wildlife Resource Trends in the United States
Author: Curtis H. FlatherPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 88
Book Description
Conservation of Rare or Little-Known Species
Author: Martin G. RaphaelPublisher: Island Press
ISBN: 159726749X
Category : Science
Languages : en
Pages : 390
Book Description
Some ecosystem management plans established by state and federal agencies have begun to shift their focus away from single-species conservation to a broader goal of protecting a wide range of flora and fauna, including species whose numbers are scarce or about which there is little scientific understanding. To date, these efforts have proved extremely costly and complex to implement. Are there alternative approaches to protecting rare or little-known species that can be more effective and less burdensome than current efforts? Conservation of Rare or Little-Known Species represents the first comprehensive scientific evaluation of approaches and management options for protecting rare or little-known terrestrial species. The book brings together leading ecologists, biologists, botanists, economists, and sociologists to classify approaches, summarize their theoretical and conceptual foundations, evaluate their efficacy, and review how each has been used. Contributors consider combinations of species and systems approaches for overall effectiveness in meeting conservation and ecosystem sustainability goals. They discuss the biological, legal, sociological, political, administrative, and economic dimensions by which conservation strategies can be gauged, in an effort to help managers determine which strategy or combination of strategies is most likely to meet their needs. Contributors also discuss practical considerations of implementing various strategies. Conservation of Rare or Little-Known Species gives land managers access to a diverse literature and provides them with the basic information they need to select approaches that best suit their conservation objectives and ecological context. It is an important new work for anyone involved with developing land management or conservation plans.
A Year in Review for the Pacific Northwest Research Station
Author: Pacific Northwest Research Station (Portland, Or.)Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 116
Book Description