Figure 2.

Effect of taxon sampling on rate estimates. Speciation (blue circles) and extinction (red crosses) rates estimated on simulated data sets of 400 taxa with a taxon sampling of 25%, 50%, 75%, and 100%, respectively. Phylogenetic trees were simulated with a speciation and extinction rate of 1 and 0.9, respectively (indicated by the dashed lines). Decreasing taxon sampling is correlated with an increase in the 95% highest posterior density (HPD) interval, whereas the accuracy of the rate estimate largely remains unaffected.