Methods
We analyze a mtDNA dataset comprising 1,492 specimens from 598 locations
worldwide. Molecular operational taxonomic units (MOTUs) ranged from 267
to 520, based on the Barcode Index Number (BIN), Bayesian Poisson tree
processes (bPTP), multi-rate Poisson tree processes (mPTP), single-rate
Poisson tree processes (sPTP), and generalized mixed Yule coalescent
(sGMYC) approaches.