Figure 4

Evolutionary scenarios of speciation between the phylogenetically close species S. tashiroi (tas) and S. playfairii (pla) and the estimated consequences of approximate Bayesian computation: (A) the CI model; (B) the AM model; (C) the SC model; and (D) the CM model. The AM scenario had the highest posterior probability. Distributions of the estimated parameters for the best scenario (AM) are presented: (E) migration rate, (F) effective population sizes, (G) divergent time and the time of gene flow, and (H) average mutation rate of 15 neutral microsatellite loci. MD, marginal density; RD, relative density.