Dissertation/Thesis Abstract

Survival and Reproductive Success of Inbred and Noninbred Prairie Voles (Microtus Ochrogaster) under Captive and Semi-Natural Conditions
by Williams, Kathryn Lynn, M.S., Miami University, 2008, 45; 10631380
Abstract (Summary)

Inbreeding's harmful consequences have been well documented under artificial conditions; however, studies under natural conditions are limited. I examined the effects of inbreeding on the fitness of prairie voles (Microtus ochrogaster) in captivity and the field. In captivity, sibling and non-sibling pairs did not differ with regard to time to the first litter, litter size, or offspring weight. Another laboratory experiment examined these same variables in the following un-related pairs: non-inbred female/ male, inbred female/ male, non-inbred female/ inbred male, and inbred female/ non-inbred male. The only significant result was that the weaning weight of offspring born to non-inbred pairs was greater than offspring born to non-inbred female/ inbred male pairs. There also was no significant difference in the survival and reproduction of unrelated inbred and non-inbred voles released into semi-natural enclosures. This study did not find any evidence that inbred adults have lower fitness than non-inbred adults.

Indexing (document details)
Advisor: Keane, Brian
Commitee: Crist, Thomas O., Solomon, Nancy G.
School: Miami University
Department: Zoology
School Location: United States -- Ohio
Source: MAI 56/05M(E), Masters Abstracts International
Subjects: Biology, Zoology
Keywords: Inbreeding, Microtus ochrogaster, Prairie voles, Reproductive success, Semi-natural conditions, Survival
Publication Number: 10631380
ISBN: 978-0-355-01630-7
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