The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status exist and are in use at international, multi-country, national and local levels as well as for consumer use.
The Alabama cavefish is a critically endangered species of amblyopsid cavefish found only in underground pools in Key Cave, located in northwestern Alabama, United States in the Key Cave National Wildlife Refuge. It was discovered underneath a colony of gray bats in 1967 by researchers Robert A. Kuehne and John E. Cooper and scientifically described in 1974.
The pallid sturgeon is an endangered species of ray-finned fish, endemic to the waters of the Missouri and lower Mississippi river basins of the United States.
An IUCN Red List Critically Endangered (CR) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of 2021, of the 120,372 species currently tracked by the IUCN, there are 6,811 species that are considered to be Critically Endangered.
Pelasgus stymphalicus, also known as the dáska or stymphalia minnow, is a threatened species of small freshwater fish. It is a short-lived species, and reaches a maximum length of 12 cm.
Pseudophoxinus antalyae, also known as the Antalya minnow or Antalya spring minnow, is a species of ray-finned fish in the family Cyprinidae. It is found only in Turkey. Its natural habitats are rivers and intermittent rivers. It is threatened by habitat loss.
The Apamean spring minnow is a species of cyprinid fish.
Pseudophoxinus maeandricus is a species of fish in the carp family, Cyprinidae. It is endemic to Turkey, where it is known only from an area near Sandıklı. It is also known as the Sandıklı spring minnow or Menderes brook minnow.
Pseudophoxinus zeregi, also known as the Levantine spring minnow, is a species of ray-finned fish in the family Cyprinidae. It is found in Turkey and Syria. Its natural habitat is rivers. The species of Pseudophoxinus zeregi is threatened by extinction because of rapid habitat loss.
The orange-necked partridge is a species of bird in the family Phasianidae. It is found in eastern Cambodia and southern Vietnam. Its habitats are lowland forests, shrubland, and plantations. It was described in 1927 and rediscovered in 1991. It is threatened by habitat loss, and the International Union for Conservation of Nature (IUCN) has assessed it as a near-threatened species.
The Baudó oropendola is a species of bird in the family Icteridae. It is endemic to Colombia. Its natural habitat is subtropical or tropical moist lowland forests, which are threatened by destruction. As it is only known from a small number of locations, its conservation status has been assessed as "endangered" by the IUCN.
Boucardicus fortistriatus is a species of land snail with an operculum, a terrestrial gastropod mollusk in the family Cyclophoridae.
The Sakhalin taimen, also known as the Japanese huchen or stringfish, is a large, East Asian species of fish in the salmon family (Salmonidae). It is found in the Primorsky Krai and Khabarovsk regions of eastern Russia, Sakhalin Island, the Kuril Islands and Hokkaido, Japan and inhabits lakes and large rivers. The population has been in general decline for a century at least. Contributory factors include degradation of the environment by logging, oil exploration and change of land use to agriculture. The fish is caught by commercial fishing as bycatch, by recreational anglers and illegally by poaching, and present populations are estimated to be less than 5% of their historic levels. The International Union for Conservation of Nature has rated the fish as being critically endangered. Although often placed in the genus Hucho, molecular phylogenetic and other evidence has shown that it belongs in its own monotypic genus Parahucho sister to Salmo.
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration.
A vulnerable species is a species which has been categorized by the International Union for Conservation of Nature that is threatened with extinction unless the circumstances that are threatening its survival and reproduction improve.
The fauna of Turkey is abundant and very varied. The wildlife of Turkey includes a great diversity of plants and animals, each suited to its own particular habitat, as it a large country with many geographic and climatic regions About 1500 species of vertebrates have been recorded in the country and around 19,000 species of invertebrate. The country acts as a cross roads with links to Europe, Asia and the Near East, and many birds use the country as a staging post during migration.
The Indus river dolphin, also known as the bhulan in Urdu and Sindhi, is a species of toothed whale in the family Platanistidae. It is endemic to the Indus River basin of Pakistan, with a small remnant population in the Beas river in India. This dolphin was the first discovered side-swimming cetacean. It is patchily distributed in five small, sub-populations that are separated by irrigation barrages.
Hucho bleekeri, the Sichuan taimen, is a species of freshwater fish in the salmon family (Salmonidae), endemic to the Yangtze basin in China. Their typical habitat includes mountain streams and small rivers, typically being found in the catchment areas of the Dadu River in Sichuan and Qinghai Provinces, as well as the Hanjiang River. This particular fish population is largely threatened by habitat loss and illegal fishing, resulting in a "critically endangered" conservation status from the International Union for Conservation of Nature.
Pseudophoxinus atropatenus, also known as the Azerbaijani spring roach or Shirvan roachling, is a species of freshwater fish in the family Cyprinidae.
Endangered species as classified by the International Union for Conservation of Nature (IUCN), are species which have been categorized as very likely to become extinct in the near future. On the IUCN Red List, endangered is the second most severe conservation status for wild populations in the IUCN's schema after Critically endangered (CR). In 2012, the IUCN Red List featured 3,079 animal and 2,655 plant species as endangered (EN) worldwide. The figures for 1998 were 1,102 and 1,197 respectively.
