Date of Award

1-24-2024

Document Type

Thesis

Degree Name

Biology, MS

First Advisor

Stephen Mullin

Committee Members

Lorin Neuman-Lee; Tanja McKay

Call Number

LD 251 .A566t 2023 N54

Abstract

Organisms must make choices to improve their survival, and often perform behaviors in response to stimuli in the environment. I examined behavioral responses under conditions of stress in a species of fully aquatic salamander, Western Lesser Sirens (Siren intermedia nettingi Goin 1942). First, I presented individuals with chemical cues from a variety of known prey items to determine a potential prey preference. Sirens did not exhibit a preference by prey type. I then exposed individuals to chemical cues from prey, predator, and insecticide sources and evaluated behavioral responses, while also administering a nonlethal physical injury to a subset of subjects prior to cue presentation. Sirens did not associate preferentially with any chemical cue type, although trends emerged in duration of performing certain behaviors. Finally, I considered the regeneration rate of siren tail tissue, and found that minor excisions from this region are effective short-term individual markings for mark-recapture studies.

Rights Management

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Included in

Biology Commons

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