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Vondracek B Blann KL Cox CB Nerbonne JF Mumford KG Nerbonne BA Sovell LA Zimmerman JK 《Environmental management》2005,36(6):775-791
We synthesized nine studies that examined the influence of land use at different spatial scales in structuring biotic assemblages
and stream channel characteristics in southeastern Minnesota streams. Recent studies have disagreed about the relative importance
of catchment versus local characteristics in explaining variation in fish assemblages. Our synthesis indicates that both riparian-
and catchment-scale land use explained significant variation in water quality, channel morphology, and fish distribution and
density. Fish and macroinvertebrate assemblages can be positively affected by increasing the extent of perennial riparian
and upland vegetation. Our synthesis is robust; more than 425 stream reaches were examined in an area that includes a portion
of three ecoregions. Fishes ranged from coldwater to warmwater adapted. We suggest that efforts to rehabilitate stream system
form and function over the long term should focus on increasing perennial vegetation in both riparian areas and uplands and
on managing vegetation in large, contiguous blocks.
Minnesota Cooperative Fish and Wildlife Research Unit is jointly sponsered by U.S. Geological Survey Biological Resources
Division, the University of Minnesota, The Minnesota Department of Natural Resources, and the Wildlife Management Institute. 相似文献
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