Regional and local patterns of genetic variation and structure in yellow-necked mice - the roles of geographic distance, population abundance, and winter severity.

摘要: The goal of this study, conducted in seven large woodlands and three areas with small woodlots northeastern Poland 2004-2008, was to infer genetic structure yellow-necked mouse Apodemus flavicollis population evaluate the roles environmental ecology variables shaping spatial pattern variation using 768 samples genotyped at 13 microsatellite loci. Genetic very high all studied regions. primal subdivision observed between northern southern parts study area, which harbored two major clusters intermediate area highly admixed individuals. probability assignment individual mice cluster increased significantly lower temperatures January July declined regions higher proportion deciduous mixed forests. Despite detected structure, differentiation among low. Fine-scale shaped by density, whereas level mainly geographic distance. similarity indices were influenced abundance (which positively correlated share forests regions) exhibited greatest change 0 1 km forests, 5 woodlots. Isolation distance pattern, calculated regions, significant but such relationship much weaker, held linearity fine scale (~1.5 km), when analyses level.