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Global archaeological evidence for proboscidean overkill.

ABSTRACT: One million years ago, proboscideans occupied most of Africa, Europe, Asia, and the Americas. Today, wild elephants are only found in portions of sub-Saharan Africa and South Asia. Although the causes of global Pleistocene extinctions in the order Proboscidea remain unresolved, the most common explanations involve climatic change and/or human hunting. In this report, we test the overkill and climate-change hypotheses by using global archaeological spatiotemporal patterning in proboscidean kill/scavenge sites. Spanning approximately 1.8 million years, the archaeological record of human subsistence exploitation of proboscideans is preferentially located on the edges of the human geographic range. This finding is commensurate with global overkill, suggesting that prehistoric human range expansion resulted in localized extinction events. In the present and the past, proboscideans have survived in refugia that are largely inaccessible to human populations.

SUBMITTER: Surovell T

PROVIDER: S-EPMC1087946 | biostudies-literature | 2005 Apr

REPOSITORIES: biostudies-literature

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Global archaeological evidence for proboscidean overkill.

Surovell Todd T Waguespack Nicole N Brantingham P Jeffrey PJ

Proceedings of the National Academy of Sciences of the United States of America 20050413 17

One million years ago, proboscideans occupied most of Africa, Europe, Asia, and the Americas. Today, wild elephants are only found in portions of sub-Saharan Africa and South Asia. Although the causes of global Pleistocene extinctions in the order Proboscidea remain unresolved, the most common explanations involve climatic change and/or human hunting. In this report, we test the overkill and climate-change hypotheses by using global archaeological spatiotemporal patterning in proboscidean kill/s ...[more]

PMID: 15829581

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