Quantification of Extinction Risk: IUCN's System for Classifying Threatened Species

  title={Quantification of Extinction Risk: IUCN's System for Classifying Threatened Species},
  author={Georgina M. Mace and Nigel J. Collar and Kevin J. Gaston and Craig Hilton‐Taylor and H. Reşit Akçakaya and Nigel Leader‐Williams and E. J. Milner‐Gulland and Simon N. Stuart},
  journal={Conservation Biology},
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species was increasingly used during the 1980s to assess the conservation status of species for policy and planning purposes. [] Key Method The system was designed to measure the symptoms of extinction risk, and uses 5 independent criteria relating to aspects of population loss and decline of range size. A species is assigned to a threat category if it meets the quantitative threshold for at least one criterion. The criteria and…

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  • M. Hayward
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    Conservation biology : the journal of the Society for Conservation Biology
  • 2009
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