Location details for populations sampled in islands of the southwest Indian Ocean, Africa, and Europe.

N de novo the number of honey bee colonies newly sampled, dataset μsat & tRNALeu-cox2: number of colonies for which microsatellites and mtDNA tRNALeu-cox2 dataset were previously described, with associated references in brackets, dataset tRNALeu-cox2: number of colonies for which only mtDNA (tRNALeu-cox2 dataset) was previously described, but microsatellites were analyzed only in this study.