GenBank numbers and locality data for samples used in this study
BEAST MCC time trees for all seven focal species/lineages
Gray bars represent the upper and lower 95% highest posterior density (HPD) estimates of divergence times at each node and correspond to x-axis scale bars in units of millions of years ago (Ma). Yellow portions of node bars extend beyond x-axis limits and thus represent scale-less, truncated estimates; for upper 95% HPD ends of the truncated bars, and for nodes corresponding to the WPI break, geometric mean divergence time estimate values are given. Tip labels are colored green (west of the WPI break) or purple (east of the WPI break) consistent with the colors of sampling locations in Fig. 2.
Graphical checks on prior distributions listed in Table 1 based on principal components analysis
Red dots show the observed data for (A) frogs and (B) freshwater fishes projected into the principal components space.
GIS sea-level model for lower Central America
This map is based on a 250 m Digital Elevation Model (DEM) and shows predicted eustatic sea levels in the study area potentially resulting from highstands of +50 m (light blue), +100 m (blue), and +250 m (dark blue) above present sea level (relative to current elevation).