Figure 4From: Evidence for survival of Pleistocene climatic changes in Northern refugia by the land snail Trochoidea geyeri (Soós 1926) (Helicellinae, Stylommatophora)Past gene-flow estimates among populations inferred from 16S rDNA and ITS-1 in Trochoidea geyeri . Estimates of 4 Nm >= 0.001 are indicated by arrows.Back to article page