projects > application of stable isotope techniques to identifying foodweb structure, contaminant sources, and biogeochemical reactions in the everglades
Application of Stable Isotope Techniques to Identifying Foodweb Structure, Contaminant Sources, and Biogeochemical Reactions in the Everglades
Major objectives of this project are to: (1) determine the stable C, N, and S isotopic compositions of Everglades biota, (2) use bulk and compound-specific isotopic ratios to determine relative trophic positions for major organisms, (3) examine the spatial and temporal changes in foodweb structures across the ecosystem, especially with respect to the effect of anthropogenically derived nutrients and contaminants from agricultural land uses on foodwebs, (4) evaluate the effectiveness of isotopic techniques vs. gut content analysis for determining trophic relations in the Everglades, (5) evaluate the role of algae vs. detritus/microbial materials in foodwebs across the nutrient gradients, (6) work with modelers to correctly incorporate foodweb and methyl mercury (MeHg) bioaccumulation information into predictive models, and (7) evaluate the effect of STAs on foodweb relations and MeHg bioaccumulation.
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