Figure 3. A) Mean and standard error of pairwise theta (a genetic diversity measure calculated as tP/nSites) for each region.B) Inferred gene flow for each pairwise regional comparison based on directionality index, ψ, indicated as source (pink) or sink (light blue). Point colors in both panels correspond to the region and match those in Fig. 1. Note that none of the ψ values are significant.