The phylogenetic position, haplotype network, and distribution of detected lineages and haplotypes of Pelophylax shqipericus. Symbol sizes in the haplotype network reflect sequence frequencies. Small black circles are missing node haplotypes, each line connecting two haplotypes corresponds to one mutation step, if not otherwise indicated the number along the line. The shaded area represents the species range. The colour scheme of the haplotype networks and species ranges corresponds with the one used in PCAs (Fig. 1) and the molecular phylogeny (Fig. S1).