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biodiversity crisis

biodiversity crisis   Quick reference

A Dictionary of Geography (5 ed.)

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...sustaining biodiversity’. E. O. Wilson ( 1992 ) calculates that if the annual extinction rate is 0.27%, and tropical forests contain 50% of all species, then about 0.14% of all species are committed to extinction each year. Unless immediate action is taken to restrain the rate of tropical habitat loss, the twenty-first century will see another major extinction catastrophe. See Pimm et al. (1995) Science 269, 5222 , and Gaston and Fuller (2007) PPG 31, 2 . Website of International Union for Conservation of...