Toad radiation reveals into-India dispersal as a source of endemism in the Western Ghats-Sri Lanka biodiversity hotspot |
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| Authors: | Ines Van Bocxlaer SD Biju Simon P Loader and Franky Bossuyt |
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| Institution: | (1) Amphibian Evolution Lab, Biology Department, Unit of Ecology & Systematics, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, Belgium;(2) Systematics Lab, Centre for Environmental Management of Degraded Ecosystems (CEMDE), School of Environmental Studies, University of Delhi, 110 007 Delhi, India;(3) Institute of Biogeography, Department of Environmental Sciences, University of Basel, Klingelbergstrasse 27, 4056 Basel, Switzerland |
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| Abstract: | Background High taxonomic level endemism in the Western Ghats-Sri Lanka biodiversity hotspot has been typically attributed to the subcontinent's
geological history of long-term isolation. Subsequent out of – and into India dispersal of species after accretion to the
Eurasian mainland is therefore often seen as a biogeographic factor that 'diluted' the composition of previously isolated
Indian biota. However, few molecular studies have focussed on into-India dispersal as a possible source of endemism on the
subcontinent. Using c. 6000 base pairs of mitochondrial and nuclear DNA, we investigated the evolutionary history and biogeography
of true toads (Bufonidae), a group that colonized the Indian Subcontinent after the Indo-Asia collision. |
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