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Multiple Colonisations Of The Western Indian Ocean By Pteropus Fruit Bats (Megachiroptera: Pteropodidae): The Furthest Islands Were Colonised First, John O'Brien, Carol Mariani, Link Olson, Amy L. Russell, Ludovic Say, Anne D. Yoder, Tom J. Hayden
Multiple Colonisations Of The Western Indian Ocean By Pteropus Fruit Bats (Megachiroptera: Pteropodidae): The Furthest Islands Were Colonised First, John O'Brien, Carol Mariani, Link Olson, Amy L. Russell, Ludovic Say, Anne D. Yoder, Tom J. Hayden
Amy L. Russell
We investigate the genetic relationships between purported island species of Pteropus fruit bat (Megachi- roptera) from the western Indian Ocean islands using mitochondrial DNA sequencing in order to infer the pattern of colonisation of this biogeographic region. Most significantly, our genetic data questions the current taxonomic assignment based on morphology of many of the island species and subspecies, sug- gesting instead that many of the western Indian Ocean islands harbour ‘races’ of P. giganteus from main- land India. Our results strongly argue against a single colonisation event from mainland Asia. Evidence is presented for three colonisation events; the first to …