Statistically supported state transitions indicating migratory events.

ψState Transition between the “Other” and Texas was supported once in our analysis (BF = 64, I = 88) likely due to the broad taxonomic sampling included in the “Other” state and phylogenetic uncertainty in estimating migration.
†The indicator is the posterior probability of observing non-zero migration rates in the Bayesian sampled trees.
*Bayes factor greater than 6 with indicator value greater than 0.50 was the minimum criteria for significance; 6≤BF<10 statistically significant; 10≤BF<30 strong statistical support; 30≤BF<100 very strongly supported; BF≥100 decisive.