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5/24/2018  |   12:00 PM - 12:15 PM   |  STRUCTURE AND FUNCTION OF MACROINVERTEBRATE COMMUNITIES FOR SETTING TARGETS FOR AGRICULTURAL BMP RESTORATION.   |  330 B

STRUCTURE AND FUNCTION OF MACROINVERTEBRATE COMMUNITIES FOR SETTING TARGETS FOR AGRICULTURAL BMP RESTORATION.

Theories on stream ecosystem recovery trajectories require testing in specific regions relative to the restoration objectives. Large-scale Agricultural Best Management Practice (BMP) programs in multiple small (<10 km2) watersheds are designed to reduce nutrient, sediment and other inputs from runoff to streams. Our research addresses measuring the success of restoration with potential improvements in stream quality and aquatic biota. We sampled benthic macroinvertebrates near agricultural BMPs in the Delaware River Basin with agricultural land use ranging from 0-83%. We are examining baseline conditions in terms of macroinvertebrate community structure (taxa) and function (functional traits/metrics). Sites show different relationships with each other and with environmental variables based on either structure or abundance. We are translating these differences to ways to predict possible changes in these communities as a result of BMPs. Knowledge of specific macroinvertebrate responses to watershed conditions will provide a basis for predicting how improvements in water and habitat quality in these watersheds will be correlated with increased biotic integrity on a local scale.

  • Biological Criteria
  • Conservation
  • Non-point Source

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Presenters/Authors

Stefanie Kroll (), Academy of Natural Sciences of Drexel University, sak345@drexel.edu;


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Hayley Oakland (), Academy of Natural Sciences of Drexel University, hco23@drexel.edu;


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John Jackson (), Stroud Water Research Center, jkjackson@stroudcenter.org;


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Bernard Sweeney (), Stroud Water Research Center, sweeney@stroudcenter.org;


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Juliann Battle (), Stroud Water Research Center, jbattle@stroudcenter.org;


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Richard Horwitz (), Academy of Natural Sciences of Drexel University, rjh78@drexel.edu;


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