Graduation Year

2011

Date of Thesis Acceptance

Fall 5-11-2011

Major Department or Program

Biology

Advisor(s)

Peter A. Zani

Abstract

Temperate ectotherms have been predicted to benefit from climate change, but few data yet exist to verify these predictions, and most studies utilize a model of uniform annual temperature increase. In this study, I examine the effects of asymmetric climate warming in temperate ectotherms by subjecting female Uta stansburiana to differing nighttime temperature treatments during their reproductive cycle. I found that higher temperature s during the ovarian cycle increased the proba bility of reproductive success and decreased the duration of the cycle , but did not affect clutch size, egg mass, or relative clutch mass. Higher incubation temperatures increased h atchling size, and decreased the incubation period, but had no effect on incubation success . These findings indicate that higher temperatures during the breeding season could increa se reproductive output and subsequent fitness in temperate ectotherms .

Page Count

38

Subject Headings

Climatic changes, Uta stansburiana, Lizards -- Reproduction, Ovulation -- Regulation, Eggs -- Size, Eggs -- Incubations, Cold-blooded animals, Side-blotched lizards -- Eggs, Cold-blooded animals -- Effect of global warming on, Whitman College 2011 -- Dissertation collection -- Biology Department

Permanent URL

http://hdl.handle.net/10349/1002

Document Type

Public Accessible Thesis

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Biology Commons

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