Quaternary Extinctions and Their Link to Climate Change

  • Barry W. Brook
  • Anthony D. Barnosky


Millennia before the modern biodiversity crisis—a worldwide event being driven by the multiple impacts of anthropogenic global change—a mass extinction of large-bodied fauna occurred. After a million years of severe climatic fluctuations, during which the earth waxed and waned between frigid ice ages and warm interglacials, with apparently few extinctions, hundreds of species of mammals, flightless birds, and reptiles suddenly went extinct over the course of the last 50,000 years (Barnosky, 2009). Due both to our intrinsic fascination with huge prehistoric beasts and to the possible insights these widespread species losses might lend to the modern extinction problem, the mystery of the “megafaunal” (large animal) extinctions have led to much theorizing, modeling, and digging (for their fossils or environmental proxies) over the last 150 years (Martin, 2005). The topic continues to invoke strong scientific interest (Koch and Barnosky, 2006; Grayson, 2007; Gillespie, 2008; Barnosky and Lindsey, 2010; Nogues-Bravo et al., 2010; Price et al., 2011).


Mass Extinction Natural Climate Change Flightless Bird Prehistoric People Direct Human Impact 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We thank Marc Carrasco, Kaitlin Maguire, Lee Hannah, and two anonymous reviewers for constructive comments. BWB’s research on this topic was supported by Australian Research Council grant DP0881764, and ADB’s by grant DEB-0543641 from the US National Science Foundation.


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Copyright information

© Island Press 2012

Authors and Affiliations

  • Barry W. Brook
    • 1
  • Anthony D. Barnosky
    • 2
  1. 1.University of Adelaide’s Environment Institute.AdelaideAustralia
  2. 2.University of CaliforniaBerkeleyUSA

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