Isolation by Drainage: Connectivity of Salamander Populations Occupying Headwater Streams
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Persistence of Colorado River Cutthroat Trout Populations in Isolated Headwater Streams of Wyoming
—For populations of cutthroat trout Oncorhynchus clarkii, isolation in headwater streams may provide protection from invasion by nonnative species but also may enhance a population’s vulnerability to extirpation. We assessed the risk of extirpation for eight Colorado River cutthroat trout O. clarkii pleuriticus populations isolated above water diversion structures in the North Fork Little Snake...
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Biota in managed forest landscapes may be at risk from habitat fragmentation that prevents dispersal among subpopulations. Management provisions to provide connectivity are often considered independently for aquatic and terrestrial species. Of increasing concern is that dichotomous approaches are economically inefficient and may fragment populations that rely on both water and land. To provide ...
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ARTICLE INFO ABSTRACT Artide history: Keywords: Desmognathus quadmmculatus Ellrycea wilderae Headwater stream Riparian buffer Salamander larvae Sedimentation Headwater streams are an important and prevalent feature of the eastern North American landscape. These streams provide a wealth of ecosystem services and support tremendous biological diversity, which is predominated by salamanders in the...
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