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Analysis of Land-Use Effects on Landscape Patterns and Biological Diversity in Pacific North Forests: 1972-1991While there is widespread recognition of the importance of preserving biological diversity there is considerable uncertainty about how to map current patterns of diversity and monitor changes through time. Ground-based approaches are impractical for examining regional patterns of biological diversity, for monitoring change, and they may actually overlook important higher-order phenomena. Thus, there is a critical need for innovative techniques to examine land-use effects on biological diversity at the landscape and regional scales. In this project, we have used satellite-based remote sensing to examine land-use effects on forest ecosystems in the Pacific NorthWest region (PNW) of the U.S.A. Rates and patterns of forest change throughout the region were quantified for the period from 1972 to 1993. This information was then used to map changes in the abundance and distribution of potential habitat for selected vertebrate species. The results of this project will be useful for identifying "keystone" stands that are important in maintaining habitat connectivity at the regional scale and for evaluating the impact of future land-use on vertebrate diversity throughout the region. The approaches developed here will also be useful in other forested regions throughout the world.
Document ID
19980210292
Document Type
Contractor or Grantee Report
Authors
Wallin, David O. (University of Western Washington Bellingham, WA United States)
Cohen, Warren B. (Forest Service Corvallis, OR United States)
Bradshaw, G. A. (Oregon State Univ. Corvallis, OR United States)
Spies, T. A. (Forest Service Corvallis, OR United States)
Hansen, A. (University of Western Washington Bellingham, WA United States)
Huff, M. H. (Forest Service Corvallis, OR United States)
Lehmkuhl, J. F. (University of Western Washington Bellingham, WA United States)
Raphael, M. G. (University of Western Washington Bellingham, WA United States)
Ripple, W. J. (Oregon State Univ. Corvallis, OR United States)
Date Acquired
September 6, 2013
Publication Date
July 10, 1998
Subject Category
Earth Resources and Remote Sensing
Funding Number(s)
CONTRACT_GRANT: NAGw-3745
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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