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Dissertation/Thesis Abstract

Effects of a chronic increase in plasma corticosterone on the brooding behavior of the prairie skink, Plestiodon septentrionalis
by Anton, Alexander James, M.S., University of Nebraska at Omaha, 2012, 53; 1530672
Abstract (Summary)

The effects of chronic corticosterone (CORT) increases on the maternal behavior of the Prairie Skink, Plestiodon septentrionalis were studied in the laboratory during the summer of 2012. It was hypothesized that chronic increases in plasma CORT would result in decreased maternal effort and higher egg mortality, with similar results in analogous studies in birds. Plasma CORT was elevated using a non-invasive, exogenous treatment and behaviors were observed using video recordings. Corticosterone treatments significantly decreased the amount of time spent tightly coiled around eggs by experimental females, and significantly decreased the amount of time experimental females spent in contact with their eggs in comparison to control females. These results indicate decreases in maternal effort in response to a CORT increase similar to those found in avian studies, as well as studies on other vertebrates.

Indexing (document details)
Advisor: Fawcett, James D.
Commitee: French, Jeffrey A., Rauter, Claudia M.
School: University of Nebraska at Omaha
Department: Biology
School Location: United States -- Nebraska
Source: MAI 51/04M(E), Masters Abstracts International
Subjects: Ecology
Keywords: Brooding, Corticosterone, Maternal care, Plestiodon
Publication Number: 1530672
ISBN: 978-1-267-80189-0
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