Resultado da Busca
A species that is extinct in the wild ( EW) is one that has been categorized by the International Union for Conservation of Nature as only consisting of living members kept in captivity or as a naturalized population outside its historic range.
We reveal the dynamic and perilous state occupied by EW species. We provide an overview of the fates of the 95 species that, since 1950, are known to have persisted in ex situ care despite extirpation in the wild and characterize the present statuses of the 84 species currently assessed as EW.
As of 2022, the International Union for Conservation of Nature (IUCN) listed 40 animal species as extinct in the wild. [1] That is approximately 0.04% of all evaluated animal species. The IUCN also lists five animal subspecies as extinct in the wild.
The IUCN Red List is the world's most comprehensive information source on the global conservation status of animal, fungi and plant species. It classifies species into nine categories, including Extinct in the Wild, which are known only to survive in cultivation, captivity or outside their historic range.
29 de mai. de 2019 · Learn the difference between extinct, extinct in the wild, critically endangered, and other categories of species decline. See photos and stories of animals that are at risk or have disappeared from their native habitats.
Version 2014.2 of the IUCN Red List of Threatened Species identified 77 (40 animal, 37 plant) extinct in the wild species, subspecies and varieties, stocks and subpopulations. For IUCN lists of extinct in the wild species by kingdom, see:
Ex situ care on the brink of extinction. Ex situ care can save species with declining wild populations from outright extinction. However, populations extirpated to ex situ care are in a precarious state and require growth and careful management to mitigate the risks of genetic deterioration and extinction.
