2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
6/05/2017 | 9:00 AM - 9:15 AM | The promise of spatial community ecology for enhancing the monitoring and management of lotic systems | 305A
The promise of spatial community ecology for enhancing the monitoring and management of lotic systems
We review basic metacommunity theory and research conducted in streams and rivers. We give an overview of the key areas where metacommunity theory has the potential to enhance existing approaches to stream and river management including stream restoration and bioassessment and cite recent examples. We then present an example application for enhancing the interpretation of stressor-response models. Metacommunity theory predicts that as connectivity increases, local sorting decreases as dispersal increases (mass effects). In a watershed management context, this suggests that the predictive power of stressor-response models may vary as a function of stream network position. Using the EPA NARS data, we applied a statistical technique to test for the strength of environmental disequilibrium and local filtering on stream communities within Level II Ecoregions of the USA, and related those responses to connectivity. We found that environmental filtering was typical among all streams, supporting the use of the classic stressor-response methodology; however, we also observed a connectivity effect on environmental filtering that differed among ecoregions. The result indicates that enhancements to stressor-response models may be possible in some regions of the USA.
- S29 Macrosystem Ecology of Aquatic Systems
- C11 Community Ecology
- S21 Practical applications of metacommunity theory in stream and river management
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Presenters/Authors
Christopher Patrick
(), Virginia Institute of Marine Science (VIMS), cpatrick@vims.edu;
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David Stoker
(), Texas A&M University–Corpus Christi, david.stoker@tamucc.edu;
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