BioOne.org will be down briefly for maintenance on 17 December 2024 between 18:00-22:00 Pacific Time US. We apologize for any inconvenience.
How to translate text using browser tools
1 March 2003 INBREEDING IN THE GREATER WHITE-TOOTHED SHREW, CROCIDURA RUSSULA
L. C. Duarte, C. Bouteiller, P. Fontanillas, E. Petit, N. Perrin
Author Affiliations +
Abstract

We combined mark-and-recapture studies with genetic techniques of parentage assignment to evaluate the interactions between mating, dispersal, and inbreeding, in a free-ranging population of Crocidura russula. We found a pattern of limited and female-biased dispersal, followed by random mating within individual neighborhoods. This results in significant inbreeding at the population level: mating among relatives occurs more often than random, and FIT analyses reveal significant deficits in heterozygotes. However, related mating partners were not less fecund, and inbred offspring had no lower lifetime reproductive output. Power analyses show these negative results to be quite robust. Absence of phenotypic evidence of inbreeding depression might result from a history of purging: local populations are small and undergo disequilibrium gene dynamics. Dispersal is likely caused by local saturation and (re)colonization of empty breeding sites, rather than inbreeding avoidance.

L. C. Duarte, C. Bouteiller, P. Fontanillas, E. Petit, and N. Perrin "INBREEDING IN THE GREATER WHITE-TOOTHED SHREW, CROCIDURA RUSSULA," Evolution 57(3), 638-645, (1 March 2003). https://doi.org/10.1554/0014-3820(2003)057[0638:IITGWS]2.0.CO;2
Received: 5 June 2002; Accepted: 25 October 2002; Published: 1 March 2003
JOURNAL ARTICLE
8 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

KEYWORDS
F-statistics
inbreeding depression
kin recognition
mate choice
sex-biased dispersal
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top