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).
A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature (IUCN) as that may be vulnerable to endangerment in the near future, but it does not currently qualify for the threatened status.
An IUCN Red List Critically Endangered 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 December 2023, of the 157,190 species currently on the IUCN Red List, 9,760 of those are listed as Critically Endangered, with 1,302 being possibly extinct and 67 possibly extinct in the wild.
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as only consisting of living members kept in captivity or as a naturalized population outside its historic range. Classification requires exhaustive surveys conducted within the species' known habitat with consideration given to seasonality, time of day, and life cycle. Once a species is classified as EW, the only way for it to be downgraded is through reintroduction.
The Florida mouse is a species of rodent in the Cricetidae family. It is the only species in the genus Podomys. True to its name, it is endemic to Florida in the United States.
Villa's gray shrew is a shrew native to northeastern Mexico, where it is called musaraña.
Thoropa lutzi is a species of frog in the family Cycloramphidae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forest, rivers, and rocky areas. It is threatened by habitat loss.
Thoropa is a genus of frogs in the family Cycloramphidae. They are endemic to eastern and southeastern Brazil. They are sometimes known as river frogs.
Thoropa miliaris is a species of frog in the family Cycloramphidae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, rivers, rocky areas, and rocky shores. It is threatened by habitat loss.
Thoropa petropolitana is a species of frog in the family Cycloramphidae. It is endemic to Serra dos Órgãos in the state of Rio de Janeiro, Brazil; there are also unconfirmed records from the neighboring Espírito Santo and São Paulo states.
Thoropa saxatilis is a species of frog in the family Cycloramphidae. It is endemic to southern Brazil and occurs in the Santa Catarina and Rio Grande do Sul states, corresponding to the southernmost extent of the Atlantic Forest biome. The specific name saxatilis refers to its association with rocks. Common name Brazilian river frog has been coined for it.
Odorrana orba is a species of frog in the family Ranidae. It is found in southeastern Laos and central Vietnam. The specific name orba is Latin for "orphan", referring to the fact that this species was—at the time of species description—known in Vietnam only from a single juvenile.
The Somali hedgehog is a species of mammal in the family Erinaceidae. It is endemic to Somalia and Somaliland. The Somali hedgehog is nocturnal.
Day's shrew is a species of mammal in the family Soricidae. It is endemic to India. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
Sempre Vivas National Park is a national park in the state of Minas Gerais, Brazil.
A vulnerable species is a species which has been categorized by the International Union for Conservation of Nature as being threatened with extinction unless the circumstances that are threatening its survival and reproduction improve.
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 their known native ranges 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. In 2012, the IUCN Red List featured 3,079 animal and 2,655 plant species as endangered worldwide. The figures for 1998 were 1,102 and 1,197 respectively.
Phyllodytes megatympanum is a frog in the family Hylidae endemic to Brazil. It has been observed between 90 and 95 meters above sea level.
Thoropa taophora, also known as the rock frog, is a species of frog in the family Cycloramphidae. These frogs are native to Brazil, where they inhabit the mountains and costal areas within the State of Sao Paolo. They are also one of many species to live in the great global diversity hotspot of the Brazilian Atlantic Forest.
