Difference between revisions of "Traits:Extinct"

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Revision as of 15:04, 4 December 2019

Extinct (EX)

Extinct (EX): A taxon is Extinct when there is no reasonable doubt that the last individual has died. A taxon is presumed Extinct when exhaustive surveys in known and/or expected habitat, at appropriate times (diurnal, seasonal, annual), throughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon’s life cycle and life form.




References: 
  • IUCN. (2012). IUCN Red List Categories and Criteria: Version 3.1. Second edition. Gland, Switzerland and Cambridge, UK: IUCN. iv + 32pp.







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A taxon is Extinct when there is no reasonA taxon is Extinct when there is no reasonable doubt that the last individual has died. A

taxon is presumed Extinct when exhaustive surveys in known and/or expected habitat, at appropriate times (diurnal, seasonal, annual), throughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon’s life cycle and life form.e to the taxon’s

life cycle and life form. +
Extinct (EX) +
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