Biology ETDs

Publication Date

Summer 8-1-2023

Abstract

In 2022 I investigated niche partitioning among native and invasive freshwater turtles across three sites in the Middle Rio Grande using bulk stable isotope analysis. I found high degrees of niche partitioning at sites in which Red-eared sliders (Trachemys scripta) have yet to establish. However, at sites in which red-eared sliders are now the most abundant species they overlapped greatly in isotopic niche with all native turtles, in particular the painted turtle (Chrysemys picta). Using these same techniques, I then examined the trophic interactions between red-eared sliders and their acanthocephalan parasites. My results suggest that acanthocephalans occupy a lower trophic position relative to their hosts, and much like cestodes are likely reliant on nutrients derived from the host’s liver.

Project Sponsors

Chelonian Research Foundation

Language

English

Keywords

turtle, acanthocephala, stable isotopes

Document Type

Thesis

Degree Name

Biology

Level of Degree

Masters

Department Name

UNM Biology Department

First Committee Member (Chair)

Lisa Barrow

Second Committee Member

Sara Brant

Third Committee Member

Seth Newsome

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