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Preservation of Natural Diversity: The Problem of Extinction Prone Species

John Terborgh
BioScience
Vol. 24, No. 12 (Dec., 1974), pp. 715-722
DOI: 10.2307/1297090
Stable URL: http://www.jstor.org/stable/1297090
Page Count: 8
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Preservation of Natural Diversity: The Problem of Extinction Prone Species
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Abstract

Extinction coefficients are estimated from the rates of disappearance of bird species from islands severed from the Neotropical mainland at the close of the Pleistocene. These coefficients accurately predict the loss of species from Barro Colorado Island, Panama, over a recent 50-year period. Prescriptions are given for the preservation of six categories of extinction prone species.

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