2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/25/2021 | 2:00 PM - 3:30 PM | Crayfish Trophic Niches in Lotic, Lentic, and Terrestrial Ecosystems | Virtual Platform
Crayfish Trophic Niches in Lotic, Lentic, and Terrestrial Ecosystems
Understanding the trophic ecology of a species gives insight into food webs, functional roles of a species, and the flow of energy throughout the system. This benefits our understanding of both species-specific natural histories, community-level interactions, as well as provides invaluable information for conservation planning. Crayfishes can have significant impacts on their environment and have been reported to be both ecosystem engineers and potential keystone species due to their ability to modify microbenthic and macrophyte community compositions. However, the trophic ecology of crayfishes is greatly lacking, with very little species-specific data. We are assessing the trophic position of sympatric crayfishes (four lotic, three lentic, and two terrestrial crayfish species) within the Sumter National Forest through stable isotope analyses. To obtain data on the trophic position, we collected tissue from the chela of crayfishes and representative food groups. Our work highlights the similarities and differences between the trophic positions of sympatric crayfishes and ecologically different crayfishes (e.g., terrestrial, lentic, lotic).
- Stream
- Conservation
- Ecological dynamics
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Presenters/Authors
Zanethia Barnett
(), USDA Forest Service, zanethia.c.barnett@usda.gov;
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