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Type: Journal article
Title: The Aftermath of Megafaunal Extinction: Ecosystem Transformation in Pleistocene Australia
Author: Rule, S.
Brook, B.
Haberle, S.
Turney, C.
Kershaw, A.
Johnson, C.
Citation: Science, 2012; 335(6075):1483-1486
Publisher: Amer Assoc Advancement Science
Issue Date: 2012
ISSN: 0036-8075
Statement of
Susan Rule, Barry W. Brook, Simon G. Haberle, Chris S. M. Turney, A. Peter Kershaw, Christopher N. Johnson
Abstract: Giant vertebrates dominated many Pleistocene ecosystems. Many were herbivores, and their sudden extinction in prehistory could have had large ecological impacts. We used a high-resolution 130,000-year environmental record to help resolve the cause and reconstruct the ecological consequences of extinction of Australia’s megafauna. Our results suggest that human arrival rather than climate caused megafaunal extinction, which then triggered replacement of mixed rainforest by sclerophyll vegetation through a combination of direct effects on vegetation of relaxed herbivore pressure and increased fire in the landscape. This ecosystem shift was as large as any effect of climate change over the last glacial cycle, and indicates the magnitude of changes that may have followed megafaunal extinction elsewhere in the world.
Keywords: Animals; Vertebrates; Humans; Ascomycota; Plants; Trees; Charcoal; Fires; Ecosystem; Biomass; Population Dynamics; Time; Fossils; Queensland; Extinction, Biological; Climate Change; Herbivory
Rights: Copyright 2012 by the American Association for the Advancement of Science; all rights reserved.
RMID: 0020117992
DOI: 10.1126/science.1214261
Appears in Collections:Earth and Environmental Sciences publications
Environment Institute Leaders publications

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