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Conservation
status
by risk of extinction
Extinct
Extinct
Extinct in the Wild
Threatened
Critically Endangered
Endangered
Vulnerable
Threatened
At lower risk
Conservation Dependent
Near Threatened
Least Concern
See also
World Conservation Union
IUCN Red List
v • d • e

Organisms with a conservation status of critically endangered have an extremely high risk of becoming extinct in the wild or completely in the immediate future.

Contents

[edit] IUCN Category

The Critically Endangered status, in relation to other IUCN Red List categories

The World Conservation Union (IUCN), widely considered to be the most objective and authoritative system for classifying species in terms of the risk of extinction,[1] lists 3246 species (1665 animals, 1575 plants, 6 fungi, lichens and algae)[2] of the world as being critically endangered in their 2008 Red List.

Critically endangered is the highest risk category assigned by the IUCN for wild species. Critically endangered means that a species numbers have decreased, or will decrease, by 80% within three generations.[3]

As the IUCN does not consider a species extinct until extensive, targeted surveys have been conducted, species which are possibly extinct are still listed as "Critically Endangered". A new category for "Possibly Extinct" has been suggested by BirdLife International to categorize these taxa.

[edit] Mammals

[edit] Primates

[edit] Lagomorphs

[edit] Bats

[edit] Carnivores

[edit] Odd-toed ungulates

[edit] Even-toed ungulates

[edit] Cetacea

[edit] Insectivores

Order Soricomorpha
Order Erinaceomorpha
Order Afrosoricida

[edit] Marsupials

[edit] Birds

[edit] Anseriformes

[edit] Apodiformes

[edit] Charadriiformes

[edit] Ciconiiformes

[edit] Columbiformes

[edit] Falconiformes

[edit] Galliformes

[edit] Gruiformes

[edit] Passeriformes

[edit] Piciformes

[edit] Procellariiformes

[edit] Psittaciformes

[edit] Strigiformes

[edit] Reptiles

[edit] Crocodilians

[edit] Squamata

[edit] Amphibians

[edit] Fish

[edit] Molluscs

[edit] Fungi

[edit] See also

[edit] References

  1. ^ "Birds on the IUCN Red List". BirdLife International. http://www.birdlife.org/action/science/species/global_species_programme/red_list.html. Retrieved 2007-02-01. 
  2. ^ "2008 Red List summary statistics". IUCN Red List. http://cmsdata.iucn.org/downloads/2008rl_stats_tables_all.xls. Retrieved 2008-10-28. 
  3. ^ "Apes extinct in a generation". BBS. http://news.bbc.co.uk/2/hi/science/nature/4202734.stm. Retrieved 2005-09-01. 
  4. ^ A. Aguilar and L. Lowry. 2008. Monachus monachus
  5. ^ IUCN Red List. 2008
  6. ^ Cat Specialist Group. 1996. Panthera pardus ssp. panthera
  7. ^ David, N. & Gosselin, M. 2002. The grammatical gender of avian genera. Bulletin of the British Ornithologists’ Club, 122: 257-282
Retrieved from "http://en.wikipedia.org/wiki/Critically_endangered_species"



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