A taxon is Extinct in the Wild when it is known only to survive in cultivation, in captivity or as a naturalized population (or populations) well outside the past range. A taxon is presumed Extinct in the Wild 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.
IUCN. (2012). IUCN Red List Categories and Criteria: Version 3.1. Second edition. Gland, Switzerland and Cambridge, UK: IUCN. iv + 32pp.
[[Category:Mstcollections||Marine species traits]]
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[[Category:Marine species traits]] [[Is trait of::Traits:ExtinctInTheWild]]
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[[:Traits:ExtinctInTheWild]] [[Reference::+]]
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[[:Traits:ExtinctInTheWild]] [[Collection::Traits:Ecological Descriptors]]
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[[:Traits:ExtinctInTheWild]] [[Collection::Traits:Distribution Descriptors]]
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[[:Traits:ExtinctInTheWild]] [[Collection::Traits:Species Importance To Society]]
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[[:Traits:ExtinctInTheWild]] [[Collection::Traits:Biological Descriptors]]
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[[:Traits:ExtinctInTheWild]] [[Is trait of::+]]
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