2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/26/2021 | 8:30 AM - 10:30 AM | Rethinking Biodiversity Patterns and Processes in Stream Ecosystems | Virtual Platform
Rethinking Biodiversity Patterns and Processes in Stream Ecosystems
A major goal of community ecology is understanding the processes responsible for generating biodiversity patterns. In stream ecosystems, system specific frameworks have dominated research describing biodiversity change along river networks. However, support for these frameworks has been mixed and these frameworks have placed less emphasis on general mechanisms driving biodiversity. Here, we apply the Theory of Ecological Communities (TEC) framework to focus explicitly on core ecological processes structuring communities. Using a case study of stream invertebrates from alpine lake-stream networks, we tested the generality of stream and the TEC frameworks.
Overall, we found support that biodiversity in lake-stream networks is structured along the river network, similar to well-studied streams, but lakes modify aspects of community structure. Despite support for the predicted biodiversity patterns, the mechanistic reasons hypothesized to structure biodiversity were only partially supported. Local diversity was structured by niche selection and ecological drift, where beta-diversity was influenced by dispersal and niche selection. By combining stream ecology frameworks with the TEC, we were able to mechanistically determine why data did and did not conform to predictions from stream ecology frameworks.
- Connectivity
- Meta-ecosystems
- Freshwater continuum
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
Matthew Green
(), University of California Riverside, mgree013@ucr.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Kurt Anderson
(), University of California, Riverside, kurt.anderson@ucr.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
David B. Herbst
(), Institute of Marine Sciences, University of California Santa Cruz, and Sierra Nevada Aquatic Research Laboratory, University of California Santa Barbara, herbst@lifesci.ucsb.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Marko Spasojevic
(), University of California, Riverside, markos@ucr.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -