Phylogenetic relationships among haplotypes found in island populations. Bayesian phylogram of 282 cytochrome b haplotypes in B. attenuatus (A). Colors as in Fig. 1. B, C and D show maximum likelihood phylograms of haplotypes recovered for mtDNA lineages Southern_S, Eastern and Southern_N, respectively. Branch support (Bayesian posterior probabilities >90%) is indicated with asterisks; arrows indicate haplotypes found on island populations.