2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
6/05/2017 | 9:00 AM - 9:15 AM | CASCADING EFFECTS OF ANURAN PRODUCTION IN GEOGRAPHICALLY ISOLATED WETLANDS | 306B
CASCADING EFFECTS OF ANURAN PRODUCTION IN GEOGRAPHICALLY ISOLATED WETLANDS
The role of consumer-driven nutrient dynamics and organismal movement has developed considerable interest due to the connection to cross ecosystem nutrient and energy transport. Production of consumers with biphasic lifecycles affects nutrient dynamics in ecosystems due to changes in organismal requirements. Larval anurans in isolated wetlands are of interest due to significant change in homeostatic demands across larval ontogenetic stages. We measured anuran tissue stoichiometry and excretion rate at 5 wetlands with high densities (~37 indiv./m2) across the hydroperiod. We found that breeding phenology drives patterns in abundance and anurans are found at a range of stages in development across a hydroperiod. Ontogenetic stage predicted tissue C:P and N:P, and excreted N:P, due to anuran demand for phosphorus during osteogenesis. The ontogenetic demand during metamorphosis suggests their contribution to nutrient cycling is best predicted by development stage. Relative abundance and life history of individual taxa contribute to the large temporal variability in areal excretion and storage ratios within and across wetlands. Variation in consumer-driven nutrient dynamics due to species-specific traits may have bottom-up impacts on wetland characteristics such as nutrient limitation and resource quality.
- S15 Connectivity and Effects of Carolina and Delmarva Bays, Pocosins, and other Geographically Isolated Wetlands of the Atlantic Coastal Plain
- C32 Primary and Secondary Production
- S19 Elements and energy as fundamental currencies of nature: using ecological stoichiometry as a tool to advance the sustainability of freshwater ecosystems
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Presenters/Authors
Scott Mcleay
(), University of Alabama, smcleay27@gmail.com;
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Carla L. Atkinson
(), University of Alabama, carlalatkinson@gmail.com;
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Lora L. Smith
(), Joseph W. Jones Ecological Research Center at Ichauway, lsmith@jonesctr.org;
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