Correspondence Analyses and Neighbor-Joining tree. (a) Correspondence Analyses based on allele frequencies at five microsatellite loci. Percentages of inertia are shown between parentheses for each axis. (b) Neighbor-Joining tree inferred from Cavalli-Sforza and Edwards's pairwise distances; only bootstrap values higher than 50 are shown. Codes correspond to locations in Figure 1, locations belonging to the southern lineage are encircled and extinct populations are shown in bold.