An early colonisation pathway into northwest Australia 70-60,000 years ago

Authored by Daniel Harris, Kasih Norman, Josha Inglis, Chris Clarkson, J Tyler Faith, James Shulmeister

Date Published: 2018

DOI: 10.1016/j.quascirev.2017.11.023

Sponsors: No sponsors listed

Platforms: Python

Model Documentation: Other Narrative Mathematical description

Model Code URLs: https://github.com/joshainglis/intervisible-pathways

Abstract

Colonisation of Sahul 70-60 thousand years ago (kya) represents the first great maritime migration undertaken by anatomically modern humans in one of the final phases of the Out of Africa dispersal. Visual connectivity network analyses, agent-based simulations and ocean current modelling reveal that modern humans could follow numerous northern and southern migration pathways into Sahul. Our results support a southern route out of Africa through South Asia with entry into ISEA through the Banda Arc, culminating in an early colonisation of Sahul on the northwest shelf. Our results show multiple colonisation events through other entry points were also probable, and raise interesting possibilities for complex regional migration and population histories. (C) 2017 Elsevier Ltd. All rights reserved.

Tags

Indonesia Agent based models Geomorphology Simulations Pleistocene History Southeast-asia Migrations Colonisation Sahul Wallacea Island south east asia (isea) Connectivity analysis Paleoceanography Last glacial cycle Sea-level change Human dispersals Mtdna variation Homo-sapiens