Date of Award

3-24-2021

Document Type

Thesis

Degree Name

Biology, MS

First Advisor

Thomas Risch

Committee Members

Anna Doty; Lorin Neuman-Lee

Call Number

LD 251 .A566t 2020 S65

Abstract

Rafinesque’s big-eared bats (Corynorhinus rafinesquii) are suffering habitat loss due to deforestation of bottomland hardwoods which an increase in agriculture forces maternity colonies to roost in anthropogenic structures. In Arkansas I explore how bats from maternity colonies in anthropogenic structures use torpor and how torpor is affected by chronic stress and ectoparasites. During June- August of 2018-2019, I surveyed a maternity colony inside a barn. Captured bats were tagged with temperature-sensitive transmitters and tracked to roost trees and the barn daily confirming day roosts. Using Lotek data loggers, data from transmitters were collected as skin temperature and compared to ambient temperature. One bat used torpor of the lactating (n=11) and post-lactating (n=8) bats captured in 2019. Blood and bat bugs (Cimex adjunctus) were collected to measure chronic stress. Of the samples analyzed from lactating (n=8) and post-lactating (n=5) bats, the neutrophil: lymphocyte ratio was unaffected by body condition or ectoparasites.

Rights Management

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

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