A vulnerable species is one which has been categorized by the International Union for Conservation of Nature as likely to become endangered unless the circumstances that are threatening its survival and reproduction improve.
Vulnerability is mainly caused by habitat loss or destruction of the species home. Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity, an example being the military macaw.
There are currently 5196 animals and 6789 plants classified as vulnerable, compared with 1998 levels of 2815 and 3222, respectively. Practices such as Cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically.
The International Union for Conservation of Nature uses several criteria to enter species in this category. A taxon is Vulnerable when it is not critically endangered or Endangered but is facing a high risk of extinction in the wild in the medium-term future, as defined by any of the following criteria (A to E):
A) Population reduction in the form of either of the following:
B) Extent of occurrence estimated to be less than 20,000 km2 or area of occupancy estimated to be less than 2000 km2, and estimates indicating any two of the following:
C) Population estimated to number fewer than 10,000 mature individuals and either:
D) Population very small or restricted in the form of either of the following:
E) Quantitative analysis showing the probability of extinction in the wild is at least 10% within 100 years.
The Bali catshark (Atelomycterus baliensis) is a species of catshark, belonging to the family Scyliorhinidae, found only off the Indonesian island of Bali. It can grow up to 47 cm.Bangweulu tsessebe
The Bangweulu tsessebe (Damaliscus lunatus superstes) is a subspecies of antelope found in northeastern Zambia. The tsessebes in northeastern Zambia in the southern Bangweulu Flats are classified by Naturalist F. Cotterill as a new species based on differences in pelage and cranial morphology.Big-headed Amazon River turtle
The big-headed Amazon River turtle (Peltocephalus dumerilianus), also known as the big-headed sideneck, is a species of turtle in the family Podocnemididae. The species is monotypic within the genus Peltocephalus.Blue coral
Blue coral (Heliopora coerulea) is a species of colonial coral. It is the only octocoral known to produce a massive skeleton. This skeleton is formed of aragonite, similar to that of scleractinia. Individual polyps live in tubes within the skeleton and are connected by a thin layer of tissue over the outside of the skeleton.Chinese goral
The Chinese goral (Naemorhedus griseus), also known as the grey long-tailed goral, is a species of goral, a small goat-like ungulate, native to mountainous regions of Myanmar, China, India, Thailand, Vietnam, and possibly Laos. In some parts of its range, it is overhunted. The International Union for Conservation of Nature has listed it as a "vulnerable species".Clouded angelshark
The clouded angelshark (Squatina nebulosa) is an angelshark of the family Squatinidae found in the northwest Pacific from the southeastern Sea of Japan to Taiwan between latitudes 47° N and 22° N. Its length is up to 1.63 m.
Reproduction is ovoviviparous.Common pochard
The common pochard (; Aythya ferina) is a medium-sized diving duck. The scientific name is derived from Greek aithuia an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin ferina, "wild game", from ferus, "wild".Eastern angelshark
The eastern angelshark (Squatina albipunctata) is an angelshark of the family Squatinidae.Hainan partridge
The Hainan partridge (Arborophila ardens) is a species of bird in the family Phasianidae. It is endemic to Hainan Island, China. Its natural habitats are primary evergreen forests. It is threatened by habitat loss and has been assessed as a vulnerable species.Lists of IUCN Red List vulnerable species
On 30 January 2010, the IUCN Red List of Threatened Species identified 9694 (4618 Animalia, 5075 Plantae, 1 Protista) Vulnerable species, subspecies and varieties, stocks and sub-populations.
For IUCN lists of vulnerable species by kingdom, see:
Animals (kingdom Animalia) — IUCN Red List vulnerable species (Animalia)
Amphibians — List of vulnerable amphibians
Birds — List of vulnerable birds
Fish — List of vulnerable fishes
Invertebrates — List of vulnerable invertebrates
Arthropods — List of vulnerable arthropods
Insects — List of vulnerable insects
Molluscs List of vulnerable molluscs
Mammals — List of vulnerable mammals
Reptiles — List of vulnerable reptiles
Fungi (kingdom Fungi) — IUCN Red List vulnerable species (Fungi)
Plants (kingdom Plantae) — IUCN Red List vulnerable species (Plantae)
Protists (kingdom Protista) — IUCN Red List vulnerable species (Protista)Lizard catshark
The lizard catshark (Schroederichthys saurisqualus) is a small shark species of the catshark family, Scyliorhinidae, found off the coast of southern Brazil on the upper continental shelf at depths of between 250 and 500 metres (820 and 1,640 ft).Malayan flat-shelled turtle
The Malayan flat-shelled turtle (Notochelys platynota) is a species of turtle found in Southeast Asia.Peripatopsis alba
The white cave velvet worm (Peripatopsis alba) is a species of velvet worm in the Peripatopsidae family.It is known only from two cave systems on Table Mountain, South Africa; Wynberg and Bats Cave. It is listed as Vulnerable on the IUCN Red List due to its restricted distribution and the potential occurrence of human collection and disturbance.Sapele
Entandrophragma cylindricum is a tree of the genus Entandrophragma of the family Meliaceae. It is commonly known as sapele or sapelli ( sə-PEE-lee) or sapele mahogany, as well as aboudikro, assi and muyovu.Small red brocket
The small red brocket (Mazama bororo) is a small species of deer in the family Cervidae. It is endemic to Atlantic Forest in Paraná, Santa Catarina and São Paulo in southeastern Brazil. This species, which only was scientifically described in 1996, is threatened by habitat loss. Though its size and structure most resemble that of the pygmy brocket (M. nana), its coloration is very similar to that of the red brocket (M. americana). It resembles hybrids between these two species even more closely, but differs from both, and their hybrids, in karyotype.Speckled catshark
The speckled catshark (Halaelurus boesemani) is a catshark of the family Scyliorhinidae. It is found in the Gulf of Aden and off the coast of Somalia. It occurs at depths of between 37 and 250 m (120 and 820 ft). Its length is up to 48 cm.Sumatran serow
The Sumatran serow (Capricornis sumatraensis), also known as the southern serow, is a species of goat-antelope native to mountain forests in the Thai-Malay Peninsula and on the Indonesian island of Sumatra. The former name of this species is "mainland serow", as all the mainland species of serow (Chinese, red and Himalayan) were previously considered subspecies of this species. The Sumatran serow is threatened due to habitat loss and hunting, leading to it being evaluated as vulnerable by the IUCN.Terminalia ivorensis
Terminalia ivorensis is a species of tree in the family Combretaceae, and is known by the common names of Ivory Coast almond, idigbo, black afara, framire and emeri.Turraeanthus africana
Turraeanthus africana is a species of plant in the family Meliaceae, also known by the common names avodiré, apeya, engan, agbe, lusamba, wansenwa, African satinwood, and African white mahogany.
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1 Pre-2001 categories and subcategories shown in italics.