Dispersal and genetic structure in the American marten, Martes americana.

Détails

ID Serval
serval:BIB_F04DE8D72CEF
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Dispersal and genetic structure in the American marten, Martes americana.
Périodique
Molecular Ecology
Auteur(s)
Broquet T., Johnson C.A., Petit E., Thompson I., Burel F., Fryxell J.M.
ISSN
0962-1083
Statut éditorial
Publié
Date de publication
2006
Peer-reviewed
Oui
Volume
15
Numéro
6
Pages
1689-1697
Langue
anglais
Résumé
Natal dispersal in a vagile carnivore, the American marten (Martes americana), was studied by comparing radio-tracking data and microsatellite genetic structure in two populations occupying contrasting habitats. The genetic differentiation determined among groups of individuals using F(ST) indices appeared to be weak in both landscapes, and showed no increase with geographical distance. Genetic structure investigated using pairwise genetic distances between individuals conversely showed a pattern of isolation by distance (IBD), but only in the population occurring in a homogeneous high-quality habitat, therefore showing the advantage of individual-based analyses in detecting within-population processes and local landscape effects. The telemetry study of juveniles revealed a leptokurtic distribution of dispersal distances in both populations, and estimates of the mean squared parent-offspring axial distance (sigma2) inferred both from the genetic pattern of IBD and from the radio-tracking survey showed that most juveniles make little contribution to gene flow.
Mots-clé
Animal Migration, Animals, Data Interpretation, Statistical, Environment, Genetic Variation, Geography, Mustelidae/genetics, Mustelidae/physiology
Pubmed
Web of science
Création de la notice
19/11/2007 11:53
Dernière modification de la notice
03/03/2018 22:36
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