Population genetics of the hazel hen <Emphasis Type="Italic">Bonasa bonasia</Emphasis> in Poland assessed with non-invasive samples |
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Authors: | Robert Rutkowski Marek Keller Patrycja Jagołkowska |
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Institution: | 1.Department of Molecular and Biometrical Techniques,Museum and Institute of Zoology PAS,Warsaw,Poland;2.Department of Forest Zoology and Game Management, Faculty of Forestry,Warsaw University of Agriculture,Warsaw,Poland |
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Abstract: | Despite a severe decrease in the number of hazel hens during the 20th century, nowadays this grouse species is rather common in the forests of Northeastern and Southern Poland. We used mitochondrial control region and microsatellite markers to examine the genetic variability of Polish populations of hazel hens. We used non-invasively collected faeces to estimate genetic variability within populations, genetic differentiation among populations as well as genetic differentiation between two regions inhabited by two different subspecies of hazel hens. Our results confirm the usefulness of DNA from faeces to obtain reliable information on the population genetics of hazel hens. We found a rather high level of genetic variability in the Polish population. Genetic variability was higher in birds from continuous forests in the South of the country than in birds from fragmented habitats in the Northeast. Genetic differentiation was higher among subpopulations from Northeastern Poland. Additionally, both classes of molecular markers suggested the presence of two distinct genetic groups of birds, corresponding to previously described subspecies. We conclude that the genetic variability of the Polish hazel hen population has been influenced by habitat fragmentation and the history of the population during its post-glacial colonization of Poland from different glacial refugia. |
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