Genetic structure of kestrel populations and colonization of the Cape Verde archipelago

摘要: Genetic diversity and population structure were studied in eight populations of the kestrel Falco tinnunculus to identify genetic consequences spatial distribution infer colonization patterns Cape Verde archipelago. We differentiation gene flow among seven island one mainland using nine microsatellite loci. Within archipelago, was strong heterozygosity low but variable populations. Two subspecies F. neglectus on northwestern islands alexandri all other identified as genetically distinct units. t. could be further separated into two groups eastern southern islands. Populations are probably founded by birds originating from mainland. Immigration is more likely populations, whereas with lowest highest exhibit fewer founding events immigrants. The number each may depend not only geographical distance neighbouring also directional immigration due northeastern trade winds. This explain differences between enable allopatric speciation.