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Information about Critically Endangered

Conservation status
the risk of extinction
Extinction
Extinct
Extinct in the Wild
Threatened
Critically Endangered
Endangered
Vulnerable
Threatened
Lower risk
Conservation Dependent
Near Threatened
Least Concern
Domesticated
See also
World Conservation Union
IUCN Red List


Organisms with a conservation status of critically endangered have an extremely high risk of becoming extinct.

IUCN Category

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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 3071 species (1528 animals, 1541 plants, 2 fungi) of the world as being critically endangered in their 2006 Red List. Additionally 254 subspecies or varieties are considered critically endangered, and 30 subpopulations or stocks have been assessed with a critical risk of (local) extinction.

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.[2]

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.

Mammalia

Pilosa

Odd-toed ungulates

Even-toed ungulates

Cetacea

Carnivores

Bats

Primates

Lagomorphs

Marsupials

Seals

Insectivores

Enlarge picture
The Golden Toad of Monteverde, Costa Rica was among the first casualties of amphibian declines. Formerly abundant, it was last seen in 1989.

Crocodilians

Chinese Alligator (Alligator sinensis)

Fish

Fungi

Birds

Anseriformes

Apodiformes

Charadriiformes

Ciconiiformes

Columbiformes

Falconiformes

Galliformes

Gruiformes

Passeriformes

Piciformes

Procellariiformes

Psittaciformes

Strigiformes

Trochiliformes

See also

References

1. ^ Birds on the IUCN Red List. BirdLife International. Retrieved on 2007-02-01.
2. ^ Apes extinct in a generation. BBS. Retrieved on 2005-09-01.
conservation status of a species is an indicator of the likelihood of that species continuing to survive either in the present day or the future. Many factors are taken into account when assessing the conservation status of a species: not simply the number remaining, but the
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extinction is the cessation of existence of a species or group of taxa, reducing biodiversity. The moment of extinction is generally considered to be the death of the last individual of that species (although the capacity to breed and recover may have been lost before this point).
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Extinct in the Wild (EW) is a conservation status assigned to species or lower taxa, the only living members of which are being kept in captivity or as a naturalized population outside its historic range.
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endangered species is a population of an organism which is at risk of becoming extinct because it is either few in number, or threatened by changing environmental or predation parameters.
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vulnerable species is a species which is likely to become endangered unless the circumstances threatening its survival and reproduction improve. The following is a very small, non-representative fraction of the 8565 species listed as vulnerable on the IUCN Red List.
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Threatened species are any species (including animals, plants, fungi, insects, bugs, etc.) which are vulnerable to extinction in the near future.

The World Conservation Union (IUCN) is the foremost authority on threatened species, and treats threatened species not as a
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Conservation Dependent (LR/cd) was an IUCN category assigned to species or lower taxa which were dependent on conservation efforts to prevent the taxon becoming threatened with extinction.
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Near Threatened (NT) is a conservation status assigned to species or lower taxa which may be considered threatened with extinction in the near future, although it does not currently qualify for the threatened status.
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Least Concern (LC) is an IUCN category assigned to extant species or lower taxa which have been evaluated but do not qualify for any other category. As such they do not qualify as threatened, nor Near Threatened, nor (prior to 2001) Conservation Dependent.
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Domestication refers to the process whereby a population of animals or plants becomes accustomed to human provision and control. Humans have brought these populations under their care for a wide range of reasons: to produce food or valuable commodities (such as wool, cotton, or
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IUCN

International Organization
Founded October 1948, Fontainebleau, France
Headquarters Rue Mauverney 28, 1196 Gland, Switzerland

Key people Mr Valli Moosa
Ms Julia Marton-Lefèvre
Industry Natural resource conservation
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IUCN Red List of Threatened Species (also known as the IUCN Red List or Red Data List), created in 1963, is the world's most comprehensive inventory of the global conservation status of plant and animal species.
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IUCN

International Organization
Founded October 1948, Fontainebleau, France
Headquarters Rue Mauverney 28, 1196 Gland, Switzerland

Key people Mr Valli Moosa
Ms Julia Marton-Lefèvre
Industry Natural resource conservation
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IUCN Red List of Threatened Species (also known as the IUCN Red List or Red Data List), created in 1963, is the world's most comprehensive inventory of the global conservation status of plant and animal species.
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Local extinction is where a species (or other taxon) ceases to exist in the chosen area of study, but still exists elsewhere. This phenomenon is also known as extirpation. Local extinctions are contrasted with global extinctions.
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BirdLife International (formerly known as the International Council for Bird Preservation) is the international conservation organization working to protect the world’s birds and their habitats.
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Mammalia
Linnaeus, 1758

Subclasses & Infraclasses
  • Subclass †Allotheria*
  • Subclass Prototheria
  • Subclass Theria

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Pilosa
Flower, 1883

Suborders

Vermilingua - anteaters
Folivora - sloths

The order Pilosa is a group of placental mammals, extant today only in the Americas. It includes the anteaters and sloths.
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B. pygmaeus

Binomial name
Bradypus pygmaeus
Anderson & Handley 2001

The Pygmy Three-toed Sloth (Bradypus pygmaeus) is a newly discovered three-toed sloth.
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Perissodactyla
Owen, 1848

Families

Equidae
Tapiridae
Rhinocerotidae
Brontotheriidae (extinct)
Chalicotheriidae (extinct)
Hyracodontidae (extinct)
Palaeotheriidae (extinct)
Amynodontidae (extinct)

The odd-toed ungulates
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E. asinus

Binomial name
Equus asinus

Subspecies
E. a. africanus
E. a. somalicus

The African Wild Ass (Equus asinus
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Diceros

Species: D. bicornis

Binomial name
Diceros bicornis
Linnaeus, 1758

Black Rhinoceros range

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R. sondaicus

Binomial name
Rhinoceros sondaicus
Desmarest, 1822

Javan Rhinoceros Range[2]


Subspecies


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Dicerorhinus
Gloger, 1841

Species: D. sumatrensis

Binomial name
Dicerorhinus sumatrensis
Fischer, 1814


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Artiodactyla*
Owen, 1848

Families

Antilocapridae
Bovidae
Camelidae
Cervidae
Giraffidae
Hippopotamidae
Moschidae
Suidae
Tayassuidae
Tragulidae
Leptochoeridae †
Dichobunidae †
Cebochoeridae †
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H. n. variani

Trinomial name
Hippotragus niger variani
(Varian, 1916)

The Giant Sable Antelope, Hippotragus niger variani also known in Portuguese as the Palanca Negra
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S. salvanius

Binomial name
Sus salvanius
(Hodgson, 1847)

Pygmy hogs (Sus salvanius
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cebifrons

Binomial name
Sus cebifrons
Linnaeus, 1758

The Visayan warty pig, Sus cebifrons is a critically endangered species of pig.
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C. bactrianus

Binomial name
Camelus bactrianus
Linnaeus, 1758

Bactrian Camel range


The Bactrian camel (Camelus bactrianus
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Elaphurus

Species: E. davidianus

Binomial name
Elaphurus davidianus
Milne-Edwards, 1866

Père David's Deer (
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