期刊
BIOLOGY LETTERS
卷 3, 期 5, 页码 585-588出版社
ROYAL SOC
DOI: 10.1098/rsbl.2007.0268
关键词
bottleneck; conservation genetics; genetic diversity; microsatellites
The lesser kestrel ( Falco naumanni) suffered a sharp population decline over much of its European distribution range in the middle of the twentieth century. Still declining in some areas, the species has recently experienced a notable population recovery in certain regions. We examined the genetic diversity variation in a growing population of lesser kestrels from Central Spain over a 6-year period ( 2000 - 2005). The population studied showed a rapid demographic expansion, increasing in the number of both breeding pairs and colonies. Annual average heterozygosity and allelic diversity increased and genetic similarity between potential mates decreased over the study period. Several immigrants regularly arrived in the study area and introduced new alleles into the local population, pointing to immigration as the main cause contributing to the observed genetic recovery.
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