Fig. 6: Regional In Situ Radiations (RISR) comparisons across bioregions. | Nature Communications

Fig. 6: Regional In Situ Radiations (RISR) comparisons across bioregions.

From: Evolutionary history of ponerine ants highlights how the timing of dispersal events shapes modern biodiversity

Fig. 6

A Current richness. B Crown age. C Linear regression: current richness ~ crown age. D Current net diversification rates. E Net diversification rates at crown age. F Time-variation parameters. Rate parameters are obtained from time-dependent birth-death models fit on each RISR. Current net diversification rates are speciation minus extinction rates as estimated from the present-days. Crown net diversification rates are initial rates estimated from the crown age. Time-variation parameters are controlling the shape of the exponential relationship between speciation rates and time: positive =  increase, negative = decrease. Box elements represent median (plain lines), upper and lower quartiles (minima and maxima), 1.5x interquartile ranges (whiskers), and outliers (points) as the default option in R package ggplot2. Overall differences tested with non-parametric Kruskal–Wallis rank tests. Pairwise differences tested with post hoc two-sided Wilcoxon tests. Effect of bioregions on the linear regression of current richness per crown age was tested with likelihood ratio test (LRT) against a nested model with no bioregion effect. Lower case letters group bioregions with no significant differences. Sample size: Afrotropics = 9, Australasia = 5, Indomalaya = 12, Neotropics = 5.

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