Female-biased dispersal in the monogamous mammal Crocidura russula : evidence from field data and microsatellite patterns.
作者： Laurence Favre , François Balloux , Jerome Goudet , Nicolas Perrin
关键词: Population 、 Microsatellite 、 Crocidura russula 、 Insectivora 、 Zoology 、 Field data 、 Transect 、 Mammal 、 Biology 、 Biological dispersal 、 Ecology
摘要: We investigated dispersal patterns in the monogamous Crocidura russula , based both on direct field observations (mark-recapture data) and genetic analyses (microsatellite loci). Natal was found to be low. Most juveniles settled within their natal territory or one immediately adjacent. Migration rate estimated two individuals per year population. The correlation between geographical distances over a 16 km transect implies that migration occurs short ranges. restricted first-litter weaned early May; this result suggests dependence of reproductive opportunities. highly female biased, pattern unusual among mammals. Its association with monogamy provides support for resource-competition model dispersal. Our results demonstrate state-biased can directly inferred from microsatellite genotype distributions, which opens new perspectives empirical studies area.
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