1. Mammal Research Institute; Polish Academy of Sciences; 17-230 Białowieża Poland
2. Laboratory of Biodiversity and Evolutionary Genomics; University of Leuven; 3000 Leuven Belgium
3. Department of Natural Sciences; National Museums Scotland; Edinburgh EH1 1JF UK
4. Department of Ecology and Evolutionary Biology; Cornell University; Ithaca NY 14853-2701 USA