Fig. 4 in Phylogeographic patterns of genetic diversity in the common spadefoot toad, Pelobates fuscus (Anura: Pelobatidae), reveals evolutionary history, postglacial range expansion and secondary contact

Fig. 4 Geographic location of populations sampled in the contact zone between Pelobates fuscus fuscus and P. f. vespertinus in Kursk Province of Russia. a Light and dark sectors show the proportion of membership of each population in clusters of P. f. fuscus and P. f. vespertinus, respectively, according to results of the Structure analysis based on allozyme data; b sectors show proportion of individuals determined as pure parental species (P. f. fuscus in light and P. f. vespertinus in dark colors) and hybrid plus "intermediate" individuals (gray color) in each population, according to results of the New Hybrids analysis based on allozyme data; c light and dark sectors show the proportion of membership of each population in clusters of P. f. fuscus and P. f. vespertinus, respectively, according to cyt b data. Localities are numbered as in Table 1 and Fig. 1