The origin of Rattus rattus on the Îles Éparses, Western Indian Ocean

Tollenaere et al. (Journal of Biogeography, 2010, 37, 398-410) present a phylogeographic analysis of Rattus rattus for the Western Indian Ocean, with particular emphasis on Madagascar, but do not include samples from three island groups centrally located in the Mozambique Channel. Haplotypes from th...

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Bibliographic Details
Published in:Journal of Biogeography
Main Authors: Russell, James C., Gleeson, Dianne M., Le Corre, Matthieu
Other Authors: Laboratoire d'Ecologie Marine (ECOMAR), Université de La Réunion (UR)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2011
Subjects:
Commensal rodent
invasive species
island colonization
mitochondrial DNA
Mozambique Channel
phylogeography
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Indian
Rattus rattus
Online Access:https://hal.science/hal-00852828
https://doi.org/10.1111/j.1365-2699.2011.02574.x
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Summary:Tollenaere et al. (Journal of Biogeography, 2010, 37, 398-410) present a phylogeographic analysis of Rattus rattus for the Western Indian Ocean, with particular emphasis on Madagascar, but do not include samples from three island groups centrally located in the Mozambique Channel. Haplotypes from these islands provide additional information on the colonization pathways of R. rattus in the Western Indian Ocean region. For each of the three Îles Éparses groups in the Mozambique Channel, we test the competing hypotheses that colonization by R. rattus was most likely: (1) from the Arabian Peninsula, (2) from East Africa, (3) from Madagascar, or (4) from independent shipping. These results are combined with historical observations of the presence of R. rattus on these islands to give stronger inference on the colonization pathways. Additionally, more accurate colonization dates provide guidance for contemporary conservation management.

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