The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations.
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 are in use at international, multi-country, national and local levels, as well as for consumer use such as sustainable seafood advisory lists and certification. The two international systems are by the International Union for Conservation of Nature (IUCN) and The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).
Nectophryne, or African tree toads, is a small genus of true toads with only two species. They are native to West and Central Africa: Nigeria, Cameroon, Gabon, northeastern Congo, Bioko and Equatorial Guinea. Nectophryne afra uses small bodies of water to lay its eggs which are then guarded by the male.
Cophixalus is a genus of microhylid frogs. These are arboreal species with expanded toe-pads, endemic to Moluccan Islands, New Guinea and northeastern Queensland, Australia.
Euryale ferox, commonly known as prickly waterlily, makhana or Gorgon plant, is a species of water lily found in southern and eastern Asia, and the only extant member of the genus Euryale. The edible seeds, called fox nuts or makhana when dried, are eaten in Asia.
Pachliopta jophon, the Ceylon rose or Sri Lankan rose, is a butterfly found in Sri Lanka that belongs to the swallowtail family. It was earlier classified as a subspecies of Pachliopta hector, the crimson rose.
The narrow sawfish, also known as the pointed sawfish or knifetooth sawfish, is a species of sawfish in the family Pristidae, part of the Batoidea, a superorder of cartilaginous fish that include the rays and skates. Sawfish display a circumglobal distribution in warm marine and freshwater habitats. Their extant biodiversity is limited to five species belonging to two genera. The sawfishes are characterised by the long, narrow, flattened rostrum or extension on their snout. This is lined with sharp transverse teeth, arranged in a way that resembles the teeth of a saw and are used for killing prey. It is found in the shallow coastal waters and estuaries of the Indo-West Pacific, ranging from the Persian Gulf to southern Japan, Papua New Guinea and northern Australia. It is the only living member of the genus Anoxypristis, but was previously included in the genus Pristis. Compared to Pristis, Anoxypristis has a narrower rostral saw with numerous teeth on the distal part and no teeth on the basal one-quarter. It reaches a length of up to 3.5 m (11 ft).
The ICUN has many ranks that define an animal's population and risk of extinction. Species are classified into one of nine Red List Categories: Extinct, Extinct in the Wild, Critically Endangered, Endangered, Vulnerable, Near Threatened, Least Concern, Data Deficient, and Not Evaluated. They formerly used a identification called lower risk to describe some animals.
Vertigo angustior, the narrow-mouthed whorl snail, is a species of minute land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Vertiginidae, the whorl snails.
The mountain scops owl, sometimes referred to as the spotted scops owl, is a species of owl in the family Strigidae. It is locally common in its main habitat which covers some parts of Asia, including Bangladesh Bhutan, Pakistan, India, Malaysia, Nepal, Taiwan, and Thailand. It is an altitudinal migrant. It has a short high-pitched call. Their call sounds like a two-note whistle, "plew-plew" or "he-he", although the female's songs are rarely heard. Their calls can also vary between different populations allowing one to determine a bird's origin.
The Sunda flying fox or Sunda fruit bat is a species of bat in the family Pteropodidae. It is endemic to Indonesia. The Sunda flying fox is categorized by the IUCN as a Vulnerable species, meaning that it has an Intermediate chance of becoming an endangered species due to the deforestation of mangrove trees for shrimp aquaculture.
Agrostistachys borneensis is a species of plant in the family Euphorbiaceae. It is a widespread plant native to much of Southeast Asia as well as India, Sri Lanka, and New Guinea.
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, invasive species, and climate change. 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.
The Japanese sturgeon or Amur sturgeon is a species of fish in the family Acipenseridae found in the Amur River basin in China and Russia. Claims of its presence in the Sea of Japan need confirmation. The species has 11–16 dorsal, 34–47 lateral, and 7–16 ventral scutes. Their dorsal fins have 38–53 rays and 20–35 anal fin rays. They also have greyish-brown backs and pale ventral sides. The species can reach up to 3 metres (9.8 ft) in length, and weigh over 190 kilograms (420 lb). The species is considered to be critically endangered.
Brassica hilarionis is a species of perennial cruciferous plant in the family Brassicaceae. It is endemic to Northern Cyprus and is classified as endangered. This species flowers from March to May. Its common name is St. Hilarion Cabbage.
Garnotia cheesemanii, the Rarotongan garnotia grass, is a species of grass in the family Poaceae that is endemic to the island of Rarotonga in the Cook Islands in the South Pacific.
Polypedates bengalensis, the brown blotched Bengal tree frog, is a species of frog in the family Rhacophoridae. It is endemic to West Bengal, India. It has been observed between 7 and 13 meters above sea level.
Aristena is a monotypic genus of terrestrial gastropods in the family Helicidae. The only species is Aristena rechingeri(Fuchs & Käufel, 1936). The genus was proposed following a molecular phylogenetic analysis.
