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Thesis Abstract – Vajda (1997)

Title:

The Effects of Capture and Handling Stress upon Plasma Concentrations of Coricosterone and Testosterone in Free-living Rodents

Author and college:

Alan Vajda, Pomona College

Date:

April 25, 1997

Degree:

Bachelor of Arts in Biology

Advisor:

Gene Fowler, Pomona College

Abstract:

No abstract provided – excerpt from the Introduction

In recognition of the variable consequences of capture-stress upon plasm steroid concentration in some vertebrates, the accurate analysis of hormonal data from free-living rodents requires an understanding of the effects of capture technique upon rodent stress physiology. The present investigation proposes to examine the effects of live-trapping upon plasma concentrations of corticosterone and testosterone in three species of free-living reproductively active, male rodents. The species to be investigated include the Pacific Kangaroo rat (Dipodomys agilis), the desert wood rat (Neotoma lepida), and the deer mouse (Peromyscus maniculatus). Blood samples from each species will be analyzed for a difference in circulating plasma concentrations of corticosterone and testosterone between samples taken from animals immediately upon capture (unstressed) and those collected in the morning following an evening of captivity within a trap (stressed).

For more information:

Contact Gail Sundberg, Pomona College – gail.sundberg@pomona.edu

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