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Early human settlement of Sahul was not an accident.
Bird, Michael I; Condie, Scott A; O'Connor, Sue; O'Grady, Damien; Reepmeyer, Christian; Ulm, Sean; Zega, Mojca; Saltré, Frédérik; Bradshaw, Corey J A.
Afiliación
  • Bird MI; ARC Centre of Excellence for Australian Biodiversity and Heritage, James Cook University, PO Box 6811, Cairns, Queensland, 4870, Australia. michael.bird@jcu.edu.au.
  • Condie SA; College of Science and Engineering, James Cook University, PO Box 6811, Cairns, Queensland, 4870, Australia. michael.bird@jcu.edu.au.
  • O'Connor S; CSIRO Oceans and Atmosphere, GPO Box 1538, Hobart, Tasmania, 7004, Australia.
  • O'Grady D; ARC Centre of Excellence for Australian Biodiversity and Heritage, Australian National University, Australian Capital Territory, 0200, Australia.
  • Reepmeyer C; Department of Archaeology and Natural History, College of Asia and the Pacific, Australian National University, Australian Capital Territory, 0200, Australia.
  • Ulm S; ARC Centre of Excellence for Australian Biodiversity and Heritage, James Cook University, PO Box 6811, Cairns, Queensland, 4870, Australia.
  • Zega M; College of Science and Engineering, James Cook University, PO Box 6811, Cairns, Queensland, 4870, Australia.
  • Saltré F; ARC Centre of Excellence for Australian Biodiversity and Heritage, James Cook University, PO Box 6811, Cairns, Queensland, 4870, Australia.
  • Bradshaw CJA; College of Arts, Society and Education, James Cook University, PO Box 6811, Cairns, Queensland, 4870, Australia.
Sci Rep ; 9(1): 8220, 2019 06 17.
Article en En | MEDLINE | ID: mdl-31209234
The first peopling of Sahul (Australia, New Guinea and the Aru Islands joined at lower sea levels) by anatomically modern humans required multiple maritime crossings through Wallacea, with at least one approaching 100 km. Whether these crossings were accidental or intentional is unknown. Using coastal-viewshed analysis and ocean drift modelling combined with population projections, we show that the probability of randomly reaching Sahul by any route is <5% until ≥40 adults are 'washed off' an island at least once every 20 years. We then demonstrate that choosing a time of departure and making minimal headway (0.5 knots) toward a destination greatly increases the likelihood of arrival. While drift modelling demonstrates the existence of 'bottleneck' crossings on all routes, arrival via New Guinea is more likely than via northwestern Australia. We conclude that anatomically modern humans had the capacity to plan and make open-sea voyages lasting several days by at least 50,000 years ago.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Arqueología / Océanos y Mares / Migración Humana Límite: Humans País/Región como asunto: Oceania Idioma: En Revista: Sci Rep Año: 2019 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Reino Unido
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Arqueología / Océanos y Mares / Migración Humana Límite: Humans País/Región como asunto: Oceania Idioma: En Revista: Sci Rep Año: 2019 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Reino Unido