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https://hdl.handle.net/2440/80810
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Type: | Journal article |
Title: | Rapid megafaunal extinction following human arrival throughout the New World |
Author: | Johnson, C. Bradshaw, C. Cooper, A. Gillespie, R. Brook, B. |
Citation: | Quaternary International, 2013; 308-309:273-277 |
Publisher: | Pergamon-Elsevier Science Ltd |
Issue Date: | 2013 |
ISSN: | 1040-6182 1873-4553 |
Statement of Responsibility: | Chris N. Johnson, Corey J.A. Bradshaw, Alan Cooper, Richard Gillespie, Barry W. Brook |
Abstract: | Lima-Ribeiro and Diniz-Filho (2013) present a new compilation and analysis of the chronologies of human arrival and megafaunal extinction throughout the Americas. They find that in many places megafauna were apparently extinct before humans arrived; in many others, megafauna coexisted with humans for thousands of years before going extinct. They conclude that human impact made at most a minor and geographically restricted contribution to megafaunal extinction. We argue that Lima-Ribeiro and Diniz-Filho's (2013) conclusions are unreliable because they have not adequately accounted for uncertainties and biases that affect the estimation of extinction dates from fossil data and human-arrival dates from archeological data. We re-analyze their data taking these problems into account, and reach the opposite conclusion to theirs: extinction consistently followed human arrival with a delay of around one or two thousand years, in agreement with the overkill model of megafaunal extinction. © 2013 Elsevier Ltd and INQUA. |
Rights: | © 2013 Elsevier Ltd and INQUA. All rights reserved. |
DOI: | 10.1016/j.quaint.2013.06.022 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1016/j.quaint.2013.06.022 |
Appears in Collections: | Aurora harvest 4 Earth and Environmental Sciences publications |
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