Colonization and dispersal in a social species, the Bechstein's bat (Myotis bechsteinii).

Détails

ID Serval
serval:BIB_EEC00B063F02
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Colonization and dispersal in a social species, the Bechstein's bat (Myotis bechsteinii).
Périodique
Molecular Ecology
Auteur(s)
Kerth G., Petit E.
ISSN
0962-1083
Statut éditorial
Publié
Date de publication
2005
Peer-reviewed
Oui
Volume
14
Numéro
13
Pages
3943-3950
Langue
anglais
Résumé
Metapopulation genetic models consider that colonization and dispersal are distinct behaviours. However, whether colonization and dispersal indeed reflect different biological processes in nature is unclear. One possibility to test this assumption is to assess patterns of autosomal and mitochondrial genetic structure in species with strict female philopatry, such as the communally breeding Bechstein's bat. In this species, mitochondrial DNA can spread only when females establish new colonies, and autosomal DNA is transmitted among colonies only when females mate with solitary males born in foreign colonies. Investigating the genetic structure among 37 colonies, we found that autosomal genes followed an island model on a regional scale and a model of isolation by distance on a larger geographical scale. In contrast, mitochondrial genetic structure revealed no pattern of isolation by distance at a large scale but exhibited an effect of ecological barriers on a regional scale. Our results provide strong empirical evidence that colonization and dispersal do not follow the same behavioural rules in this bat, supporting the assumption of metapopulation genetic models.
Mots-clé
Animals, Chiroptera/physiology, DNA, Mitochondrial/genetics, Demography, Female, Gene Frequency, Genetic Variation, Genetics, Population, Geography, Germany, Microsatellite Repeats/genetics, Models, Genetic, Population Dynamics
Pubmed
Web of science
Création de la notice
19/11/2007 11:53
Dernière modification de la notice
03/03/2018 22:33
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