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January 1, 2003Australian Mammalogy

Electrophoretic studies of the systematic and biogeographic relationships of the Fijian bat genera Pteropus, Pteralopex, Chaerephon and Notopteris.

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Authors

SISandy InglebyDCD. J. Colgan

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Overview

Genetic analysis reveals deep evolutionary divergence and cryptic speciation among Fijian bats, highlighting complex biogeographical origins and the need for taxonomic revisions.

Key Points

  • Determine the systematic and biogeographic relationships of Fijian bats relative to regional populations across Vanuatu, the Solomon Islands, New Caledonia, New Guinea, and Australia.
  • Assayed allozyme variation across 24 to 29 presumptive genetic loci.
  • Sampled populations across four bat genera (Pteropus, Pteralopex, Chaerephon, and Notopteris) across the Southwest Pacific and Australasia.
  • The endemic Fijian monkey-faced bat (Pteralopex acrodonta) exhibited divergence from Solomon Islands congeners comparable to differences typically seen between distinct genera.
  • The northern freetail-bat (Chaerephon jobensis) displayed substantial genetic divergence across geographies, indicating that forms in Australia, Fiji/Vanuatu, and the Solomon Islands represent three distinct species.
  • Low genetic divergence was observed across island groups for Pteropus tonganus populations and between P. tonganus and Pteropus conspicillatus, whereas Pteropus samoensis allied closely with Pteropus nitendiensis.

Cite This Study

Ingleby et al. (2003) studied this question.

synapsesocial.com/papers/6ab07b6edaf5bbd7f11eca5bhttps://doi.org/10.1071/am03013
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  1. 1Character congruence and phylogenetic signal in molecular and morphological data sets: a case study in the living Iguanas (Squamata, Iguanidae)1996 · 88 citations