Figure 4.
Marginal posterior probability distribution for parameters estimated by the isolation-with-migration model. Marginal posterior probabilities are estimated for (A) divergence time between the northern and southern EPR, (B) the forward-in-time migration rates between the northern and southern EPR, where ms represents south-to-north migration and mn north-to-south and (C) effective population sizes of the ancestral population (Na) and the two sister populations (i.e. Nn and Ns for the northern EPR population and the southern EPR population, respectively). Values estimated using IMa and 90% highest posterior density intervals of these parameters are presented in additional file 4.