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Title:
Assessing the Causes of Late Pleistocene Extinctions on the Continents
Authors:
Barnosky, Anthony D.; Koch, Paul L.; Feranec, Robert S.; Wing, Scott L.; Shabel, Alan B.
Affiliation:
AA(Department of Integrative Biology and Museums of Paleontology and Vertebrate Zoology, University of California, Berkeley, CA 94720, USA.), AB(Department of Earth Sciences, University of California, Santa Cruz, CA 95064, USA.), AC(Department of Integrative Biology and Museums of Paleontology and Vertebrate Zoology, University of California, Berkeley, CA 94720, USA.), AD(Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USA.), AE(Department of Integrative Biology and Museums of Paleontology and Vertebrate Zoology, University of California, Berkeley, CA 94720, USA.)
Publication:
Science, Volume 306, Issue 5693, pp. 70-75 (2004). (Sci Homepage)
Publication Date:
10/2004
Category:
PALEO
Origin:
SCIENCE
Abstract Copyright:
(c) 2004: Science
DOI:
10.1126/science.1101476
Bibliographic Code:
2004Sci...306...70B

Abstract

One of the great debates about extinction is whether humans or climatic change caused the demise of the Pleistocene megafauna. Evidence from paleontology, climatology, archaeology, and ecology now supports the idea that humans contributed to extinction on some continents, but human hunting was not solely responsible for the pattern of extinction everywhere. Instead, evidence suggests that the intersection of human impacts with pronounced climatic change drove the precise timing and geography of extinction in the Northern Hemisphere. The story from the Southern Hemisphere is still unfolding. New evidence from Australia supports the view that humans helped cause extinctions there, but the correlation with climate is weak or contested. Firmer chronologies, more realistic ecological models, and regional paleoecological insights still are needed to understand details of the worldwide extinction pattern and the population dynamics of the species involved.
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