Figure 3.

(a,b) Results from mitochondrial-only and (c,d) multi-locus msBayes analyses. (a,c) The approximate joint posterior estimates of Var(τ)/E(τ), the dispersion index of τ and E(τ), the mean of τ. (b,d) Posterior probability densities for τ, the divergence time for each of the five lineage pairs. The solid lines represent estimates under the isolation model and the dashed lines in (d) represent estimates for L. rheocola and L. jungguy under the low-migration model. The joint divergence time estimates for the four taxa that diverged in the Mid-Pleistocene and for L. serrata, which diverged in the Pliocene, are shown in grey. Note that the single and multi-locus msBayes analyses have different timescales.