Ref ID:	26848
Ref Type:	Journal Article
Authors:	Posth, Cosimo Nägele, Kathrin Colleran, Heidi Valentin, Frédérique Bedford, Stuart Kami, Kaitip W. Shing, Richard Buckley, Hallie Kinaston, Rebecca Walworth, Mary Clark, Geoffrey R. Reepmeyer, Christian Flexner, James Maric, Tamara
Title:	Language continuity despite population replacement in Remote Oceania
Date:	2018
Source:	Nature Ecology & Evolution
DOI:	10.1038/s41559-018-0498-2
Notes:	Authors continued: Moser, Johannes Gresky, Julia Kiko, Lawrence Robson, Kathryn J. Auckland, Kathryn Oppenheimer, Stephen J. Hill, Adrian V. S. Mentzer, Alexander J. Zech, Jana Petchey, Fiona Roberts, Patrick Jeong, Choongwon Gray, Russell D. Krause, Johannes Powell, Adam
Abstract:	Recent genomic analyses show that the earliest peoples reaching Remote Oceania—associated with Austronesian-speaking Lapita culture—were almost completely East Asian, without detectable Papuan ancestry. However, Papuan-related genetic ancestry is found across present-day Pacific populations, indicating that peoples from Near Oceania have played a significant, but largely unknown, ancestral role. Here, new genome-wide data from 19 ancient South Pacific individuals provide direct evidence of a so-far undescribed Papuan expansion into Remote Oceania starting ~2,500 yr BP, far earlier than previously estimated and supporting a model from historical linguistics. New genome-wide data from 27 contemporary ni-Vanuatu demonstrate a subsequent and almost complete replacement of Lapita-Austronesian by Near Oceanian ancestry. Despite this massive demographic change, incoming Papuan languages did not replace Austronesian languages. Population replacement with language continuity is extremely rare—if not unprecedented—in human history. Our analyses show that rather than one large-scale event, the process was incremental and complex, with repeated migrations and sex-biased admixture with peoples from the Bismarck Archipelago.
Date Created:	3/20/2018
Volume:	2
Page Start:	731
Page End:	740