Population genetic structure of two ecologically distinct multimammate rats: the commensal Mastomys natalensis and the wild Mastomys erythroleucus in southeastern Senegal.

摘要: Using the same set of microsatellite markers, we compared population genetic structure two Mastomys species, one being exclusively commensal in southeastern Senegal, and other continuously distributed outside villages this region. Both species were sampled landscape context at spatial scale. According to expectations based on degree habitat patchiness (which is higher for populations rural area), diversity was lower differentiation natalensis than wild erythroleucus. Contrasting estimates effective dispersal current migration rates corroborates previous data differences social between species. Isolation-by-distance analyses showed that human-mediated not a major factor explaining pattern M. natalensis, gene flow high random erythroleucus scale considered.