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Synchronous diversification of Sulawesi's iconic artiodactyls driven by recent geological events
Journal article   Open access   Peer reviewed

Synchronous diversification of Sulawesi's iconic artiodactyls driven by recent geological events

L.A.F. Frantz, A. Rudzinski, A.M.S. Nugraha, A. Evin, J. Burton, A.. Hulme-Beaman, A. Linderholm, R. Barnett, R. Vega, E.K. Irving-Pease, …
Proceedings of the Royal Society B: Biological Sciences, Vol.285(1876)
2018
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Abstract

The high degree of endemism on Sulawesi has previously been suggested to have vicariant origins, dating back to 40 Ma. Recent studies, however, suggest that much of Sulawesi’s fauna assembled over the last 15 Myr. Here, we test the hypothesis that more recent uplift of previously submerged portions of land on Sulawesi promoted diversification and that much of its faunal assemblage is much younger than the island itself. To do so, we combined palaeogeographical reconstructionswithgenetic andmorphometric datasets derived from Sulawesi’s three largest mammals: the babirusa, anoa and Sulawesi warty pig. Our results indicate that although these species most likely colonized the area that is now Sulawesi at different times (14 Ma to 2-3 Ma), they experienced an almost synchronous expansion from the central part of the island. Geological reconstructions indicate that this area was above sea level for most of the last 4 Myr, unlike most parts of the island. We conclude that emergence of land on Sulawesi (approx. 1-2 Myr) may have allowed species to expand synchronously. Altogether, our results indicate that the establishment of the highly endemic faunal assemblage on Sulawesiwas driven by geological events over the last few million years.

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#15 Life on Land

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.64 Phylogenetics & Genomics
3.64.34 Phylogenetic Relationships
Web Of Science research areas
Biology
Ecology
Evolutionary Biology
ESI research areas
Plant & Animal Science
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