2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/20/2019 | 9:45 AM - 10:00 AM | SCALING FROM THE LANDSCAPE TO RIVERINE FOOD WEBS | 250 DE
SCALING FROM THE LANDSCAPE TO RIVERINE FOOD WEBS
A fundamental perspective in ecology is that physical habitat provides the template for ecological interactions. Within this framework, habitat heterogeneity (HH) is known to have a strong influence on ecological dynamics, including the structure and function of food webs. Both empirical and theoretical studies suggest that local HH can dampen strong destabilizing trophic interactions, particularly when habitats are coupled by mobile consumers. In large river ecosystems, HH may be expressed at spatial scales that are not immediately obvious (e.g., floodplain morphology, tributary confluences), yet, these features are likely critical for supporting and maintaining river diversity and production. Rivers are notable for their spatio-temporal heterogeneity across scales, making them ideal settings to investigate relationships between landscape-scale geomorphological processes, local patterns of HH, and energy flows through food webs. We examined spatial associations between benthic HH, geomorphic features, and flow food webs across large segments of the Missouri and Yellowstone rivers in Montana and North Dakota, USA. Using this approach, we present a road map for incorporating the spatial hierarchy of habitat-generating features into our understanding of energy flows through river food webs.
- Secondary Production
- Landscape
- Spatial
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Presenters/Authors
Eric Scholl
(), Montana State University, escholl86@gmail.com ;
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Wyatt Cross
(), Montana State University, wyatt.cross@montana.edu ;
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Addie Dutton
(), Montana Cooperative Fishery Research Unit, Montana State University , adeline.dutton@msu.montana.edu;
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Christopher Guy
(), U.S. Geological Survey, Montana Cooperative Fishery Research Unit, Montana State University, cguy@montana.edu;
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