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Title: Bioassessment of silvicultural impacts in streams and wetlands of the eastern United States

Author: Hutchens, John J. Jr.; Batzer, Darold P.; Reese, Elizabeth;

Date: 2003

Source: Water, Air, and Soil Pollution 00: 1-17

Publication Series: Miscellaneous Publication

Description: Bioassessment is a useful tool to determine the impact of logging practices on the biological integrity of streams and wetlands. Measuring biota directly has an intuitive appeal for impact assessment, and biota can be superior indicators to physical or chemical characteristics because they can reflect cumulative impacts over time. Logging can affect stream and wetland biota by increasing sedimentation rates, altering hydrologic, thermal, and chemical regimes, and changing the base of food webs. Biotic impacts of logging on streams compared to wetlands probably differ, and in this paper we review some of those differences. In streams, invertebrates, fishes, amphibians, algae, and macrophytes have been used as indicators of logging impacts. In wetlands, bioassessment is just beginning to be used, and plants and buds are the most promising indicator taxa. Various best management practices (BMPs) have been developed to reduce the impacts of logging on stream and wetland biota, and we review quantitative studies that have evaluated the efficacy of some of these techniques in streams and wetlands in the eastern United States. Remarkably few studies that address the overall efficacy of BMPs in limiting biotic changes in streams and wetlands after BMP implementation have been published in scientific journals, although some work exists in reports or is unpublished. We review these works, and compile conclusions about BMP efficacy for biota from this body of research.

Keywords: Best management practices, BMP, forestry, logging, invertebrates, macrophytes, algae, fish, amphibians, reptiles, birds

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Hutchens, John J., Jr.; Batzer, Darold P.; Reese, Elizabeth 2003. Bioassessment of silvicultural impacts in streams and wetlands of the eastern United States. Water, Air, and Soil Pollution 00: 1-17

 


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