2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/27/2021 | 2:00 PM - 3:30 PM | Short-term diatom community responses to drought conditions in experimental wetlands | Virtual Platform
Short-term diatom community responses to drought conditions in experimental wetlands
We assessed the short-term responses of benthic diatom communities and microalgal biomass over a 4-month sampling period using temporary and permanent experimental wetlands in southeast Georgia. Temporary wetlands were inundated for ~70d then allowed to dry (~30d), whereas permanent wetlands had been continuously flooded for a 2y period. We hypothesized that permanent wetlands would have higher rates of primary production and harbor a consistent diatom community throughout flooding, whereas temporary wetlands would initially have lower rates of primary production, with an increased rate during drying conditions, while harboring quick turn-over taxa. We also expected compounding physical factors (i.e., temperature and nutrient concentrations) to affect temporary and permanent wetlands differently. We found diatom communities to differ between temporary and permanent wetlands, and abiotic conditions contributed to these differences. This study demonstrates how microalgal communities will respond to a changing climate and how these changes may ultimately influence wetland ecosystem processes.
- Food webs
- Ecological dynamics
- Climate variability
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Presenters/Authors
Maggie Kuhn
(), Georgia Southern University, mk12813@georgiasouthern.edu;
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Craig Aumack
(), Georgia Southern University, caumack@georgiasouthern.edu;
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Checo Colon-Gaud
(), Georgia Southern University, jccolongaud@georgiasouthern.edu;
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