2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/24/2018 | 10:00 AM - 10:15 AM | DOES LABORATORY BEHAVIOR CORRELATE WITH DIET FOR THE INVASIVE RUSTY CRAYFISH FAXONIUS RUSTICUS? | 420 A
DOES LABORATORY BEHAVIOR CORRELATE WITH DIET FOR THE INVASIVE RUSTY CRAYFISH FAXONIUS RUSTICUS?
Laboratory behavioral experiments are a common tool for understanding organisms, but whether these behaviors accurately reflect field behaviors or performance remains understudied. Directly connecting laboratory behaviors to field interactions would increase understanding of a variety of organisms. The relative abundances of stable isotopes within individuals can be used to understand their previous field function, such as calculating trophic position. This study examined linkages between laboratory dominance assays and trophic position of rusty crayfish (Faxonius rusticus) using stable isotopes of carbon and nitrogen. We chose three tissues – muscle, hepatopancreas, and haemolymph – for stable isotope analysis based on their expected variation in isotopic turnover rates. We hypothesized more dominant crayfish would have higher trophic positions and tissue with faster turnover rates would exhibit a stronger relationship between laboratory behavior and trophic position as these tissues more closely reflect the feeding ecology at time of collection. We failed to find a relationship between dominance and trophic position, regardless of tissue used for stable isotope analysis. Future studies should investigate whether laboratory behavior and field function correlates between, rather than within, populations and consider other behavioral types.
- Isotope
- Invertebrate
- Invasive
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
Amaryllis Adey
(), The University of Notre Dame, aadey@nd.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Eric Larson
(), University of Illinois, erlarson@illinois.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -