Date of Award

2013

Document Type

Thesis

Degree Name

Master of Science in Biology

Department

Biology

First Advisor

Middleton, Kevin M.

Second Advisor

Owerkowicz, Tomasz

Third Advisor

Sumida, Stuart S.

Abstract

Striking changes in atmospheric oxygen levels have occured since the beginning of the Phanerozic 542 million years ago. Alligators belong to a clade of vertebrates with a long evolutionary history spanning much of this variability in atmospheric oxygen. An investigation into the effects of hypoxia and hyperoxia on skeletal growth and physiology in alligators may help to reconstruct the life history of archosaurs, explain patterns in the fossil record, and broaden our understanding of the processes underlying long term success of this clade.

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