Fig. 1.

The San Salvador (blue dot) and Laguna Chichancanab (red dot) sympatric radiations of trophic specialists are outliers in trait diversification rates among all Cyprinodontidae clades. Relative rates of trait diversification across all sampled clades of Cyprinodon pupfishes and closely related outgroups on the first and second principal component axes for 16 functional traits are shown. All clades with allopatric distributions are shown in black; neutral rates of trait diversification simulated under a Brownian motion model on the Cyprinodontidae tree are shown as open gray circles. Error bars indicate 95% confidence intervals for rate estimates estimated from a random sample of trees from the posterior distribution of the ultrametric phylogeny. Modified from Martin and Wainwright (2011).