Critical landscape attributes that influence fish population dynamics in headwater streams |
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Authors: | Isaac J Schlosser |
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Institution: | (1) Department of Biology, University of North Dakota, 58202-9019 Grand Forks, ND, USA |
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Abstract: | Three landscape attributes are likely to have strong effects on the rate-dependent processes determining fish population dynamics in headwater streams: (1) functional interactions at terrestrial-aquatic ecotones and their influence on temporal and spatial variation in resource supply and predator-prey interactions, (2) large-scale spatial habitat relationships and their effect on resource use and fish movement, and (3) presence of refugia from harsh environmental conditions and their influence on fish survival and emigration/immigration rates. Elucidating how these factors interact over a range of temporal and spatial scales should be a major goal of lotic fish ecologists. |
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Keywords: | fish habitat landscape ecology refugin riparian streams |
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