| post-glacial recolonization of the great lakes region by the common gartersnake (thamnophis sirtalis) inferred from mtdna sequences. | pleistocene events played an important role in the differentiation of north american vertebrate populations. michigan, in particular, and the great lakes region, in general, were greatly influenced by the last glaciation. while several hypotheses regarding the recolonization of this region have been advanced, none have been strongly supported. we generated 148 complete nd2 mitochondrial dna (mtdna) sequences from common gartersnake (thamnophis sirtalis) populations throughout the great lakes reg ... | 2007 | 17174111 |