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Forest Fragmentation of the Conterminous United States: Assessing Forest Intactness through Road Density and Spatial Characteristics

Forest Fragmentation of the Conterminous United States: Assessing Forest Intactness through Road... Articles Forest Fragmentation of the Conterminous United States: Assessing Forest Intactness through Road Density and Spatial Characteristics GERALD E. HEILMAN JR., JAMES R. STRITTHOLT, NICHOLAS C. SLOSSER, AND DOMINICK A. DELLASALA ver the past few centuries, widespread disturbance FOREST FRAGMENTATION CAN BE Oof native forests of the conterminous United States has dramatically altered the composition, structure, extent, and MEASURED AND MONITORED IN A spatial pattern of forestlands (Curtis 1956, Whitney 1994). These forests have been either permanently replaced by other POWERFUL NEW WAY BY COMBINING land uses or degraded to varying degrees by unsustainable forestry practices, forest fragmentation, exotic species intro- REMOTE SENSING, GEOGRAPHIC INFORMA- duction, or alteration of natural disturbance regimes. TION SYSTEMS, AND ANALYTICAL Habitat fragmentation is generally defined as the process of subdividing a continuous habitat type into smaller patches, SOFTWARE which results in the loss of original habitat, reduction in patch size, and increasing isolation of patches (Andrén 1994). Habitat fragmentation is considered to be one of the single most important factors leading to loss of native species (es- As native forests become increasingly fragmented, ecosys- pecially in forested landscapes) and one of the primary causes tem dynamics switch from being predominantly internally dri- of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png BioScience Oxford University Press

Forest Fragmentation of the Conterminous United States: Assessing Forest Intactness through Road Density and Spatial Characteristics

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References (41)

Publisher
Oxford University Press
Copyright
© 2002 American Institute of Biological Sciences
Subject
Overview Articles
ISSN
0006-3568
eISSN
1525-3244
DOI
10.1641/0006-3568(2002)052[0411:FFOTCU]2.0.CO;2
Publisher site
See Article on Publisher Site

Abstract

Articles Forest Fragmentation of the Conterminous United States: Assessing Forest Intactness through Road Density and Spatial Characteristics GERALD E. HEILMAN JR., JAMES R. STRITTHOLT, NICHOLAS C. SLOSSER, AND DOMINICK A. DELLASALA ver the past few centuries, widespread disturbance FOREST FRAGMENTATION CAN BE Oof native forests of the conterminous United States has dramatically altered the composition, structure, extent, and MEASURED AND MONITORED IN A spatial pattern of forestlands (Curtis 1956, Whitney 1994). These forests have been either permanently replaced by other POWERFUL NEW WAY BY COMBINING land uses or degraded to varying degrees by unsustainable forestry practices, forest fragmentation, exotic species intro- REMOTE SENSING, GEOGRAPHIC INFORMA- duction, or alteration of natural disturbance regimes. TION SYSTEMS, AND ANALYTICAL Habitat fragmentation is generally defined as the process of subdividing a continuous habitat type into smaller patches, SOFTWARE which results in the loss of original habitat, reduction in patch size, and increasing isolation of patches (Andrén 1994). Habitat fragmentation is considered to be one of the single most important factors leading to loss of native species (es- As native forests become increasingly fragmented, ecosys- pecially in forested landscapes) and one of the primary causes tem dynamics switch from being predominantly internally dri- of

Journal

BioScience – Oxford University Press

Published: May 1, 2002

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