information is available on the patterns of genetic connectivity in owls. We
studied the genetic structure of the eagle owl Bubo bubo (Linnaeus, 1758)
in southeastern Spain at two different spatial scales. Seven microsatellites
previously described for this species were used, although only six loci
amplified correctly. The observed low genetic variation could be explained by
the short dispersal distance, high mortality rate and high degree of monogamy
shown by this large nocturnal predator. As expected, the highest genetic
isolation was detected in the geographically most isolated population.
Significant genetic differentiation was found among study units separated by
less than 50 km. The territorial analysis showed interesting connectivity
patterns related with the gene flow and turnover rate of the breeding
individuals. The lowest genetic diversity was found in the region with the
largest population, which could imply incipient inbreeding.
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