2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/21/2019 | 2:45 PM - 3:00 PM | TIMING IS EVERYTHING: EXPLORING INTERANNUAL VARIABILITY IN STREAM METABOLISM | 251 DE
TIMING IS EVERYTHING: EXPLORING INTERANNUAL VARIABILITY IN STREAM METABOLISM
The life histories and resource usage of aquatic consumers are related to the timing, quantity, and quality of carbon inputs. Ecosystem metabolism can be used as an integrative descriptor of the energetics of systems by examining the separate components of primary production and ecosystem respiration. Metabolism exhibits phenological patterns, and the timing and predictability of these patterns is important for understanding temporal dynamics of communities. Changing phenological responses have been observed across terrestrial, lentic, and marine systems but considerably less is known about the patterns or variation of ecosystem metabolism in lotic systems. Here, we use near-continuous estimates of metabolism from a multitude of sites to examine interannual variability in the timing, magnitude, and shape of stream metabolism. We compare these patterns to corresponding changes in stream or adjacent terrestrial systems to explore potential controls on the regularity of metabolic patterns. Beginning to link the phenology of ecosystem metabolism to drivers can improve our understanding of the temporal dynamics of stream ecosystems and offer new approaches for linking stream ecosystem energetics to community structure.
- Primary Production
- Algae
- Life History
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Presenters/Authors
Philip Savoy
(), Duke University, philip.savoy@gmail.com;
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Emily Bernhardt
(), Duke University, ebernhar@duke.edu;
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Jim Heffernan
(), Duke University, james.heffernan@duke.edu;
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Audrey Thellman
(), Duke University , audrey.thellman@duke.edu;
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