1. Department of Biological and Medical SciencesOxford Brookes UniversityGipsy Lane, Oxford OX3 0BPUnited Kingdom
2. Institut für PopulationsgenetikVeterinärmedizinische Universität WienVeterinärplatz 1, A‐1210 ViennaAustria
3. Department of Population GeneticsNational Institute of GeneticsMishima, Shizuoka 411‐8540Japan
4. Department of Theoretical BiologyUniversity of ViennaAlthanstrasse 14, A‐1090 ViennaAustria