Fig. 1

Topographic map of Tasmania indicating sampling sites for Niveoscincus ocellatus (filled circles) and species distribution records (open circles). The blue line bounds the maximum extent of Pleistocene glaciation, while that corresponding to the Last Glacial Maximum is bounded by the red line, based on [28]. Black lines demarcate groups defined on the basis of mtDNA variation, with the dashed black line indicating the ambiguous placement of the Lake Mackenzie population either within the Southeast group or on its own. Elevation data were obtained from Geoscience Australia