International Union for Conservation of Nature IUCN considers a species to be lsquo c...........

Geography and Environment (PCS) Biodiversity

International Union for Conservation of Nature (IUCN) considers a species to be ‘critically endangered’ if the spatial measure (extent of occurrence) is estimated to be less than _________km²

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PCS Previous year General Studies paper (2018)

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Explanation:

To be defined as critically endangered in the Red List, a species must meet any of the following criteria:

A: Population size reduction-If the reasons for population reduction no longer occur and can be reversed, the population needs to have been reduced by at least 90%

B: Occurring over less than 100 km² OR the area of occupancy is less than 10 km²