Fig. 2
From: Macroecology and macroevolution of the latitudinal diversity gradient in ants
Global patterns of ant diversity and evolution. Species richness by a region and b 5° latitudinal band. Phylogenetic diversity by c region and d latitudinal band, where the gray area reflects the distribution of 95% null values while the blue area reflects 95% of observed values across 100 trees in the posterior distribution. Both null and observed values were subtracted from the null mean for each tree. Mean of ln(median diversification rate across trees) for all species in each e region or f latitudinal band, with blue shading standard deviation of the variation within each band. These plots are based on trees constructed with NC-stem dating/grafting method, but corresponding results with other methods are found in Supplementary Figs. 2-3
