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facts & figures

NATURE CONSERVATION

CRITICALLY ENDANGERED/CRITERIA

source: http://intranet.iucn.org/
webfiles/doc/SSC/RedList/
redlistcatsenglish.pdf

A taxon* is ‘critically endangered’ (CR) when it is facing an extremely high risk of extinction in the wild in the immediate future:

an observed, estimated, inferred or suspected reduction of at least 80% over the last 10 years or three generations;

a reduction of at least 80%, projected or suspected to be met within the next 10 years or three generations;

extent of occurrence estimated to be less than 100 km2 or area of occupancy estimated to be less than 10 km2;

population estimated to number less than 250 mature individuals (or an estimated continuing decline of at least 25% within 3 years or one generation);

population very small or restricted, estimated to number less than 50 mature individuals;

quantitative analysis showing the probability of extinction in the wild is at least 50% within 10 years or 3 generations.

*Taxon: a taxonomic category or group of plants and animals classified according to their presumed natural relationships.

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