List Of Vulnerable Amphibians on:
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In September 2016, the
*
* Olympic torrent salamander (''Rhyacotriton olympicus'')
In September 2016, the International Union for Conservation of Nature
The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the stat ...
(IUCN) listed 670 vulnerable amphibian
Amphibians are ectothermic, anamniote, anamniotic, tetrapod, four-limbed vertebrate animals that constitute the class (biology), class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all Tetrapod, tetrapods, but excl ...
species. Of all evaluated amphibian species, 10% are listed as vulnerable.
No subpopulations of amphibians have been evaluated by the IUCN.
For a species to be assessed as vulnerable to extinction the best available evidence must meet quantitative criteria set by the IUCN designed to reflect "a high risk of extinction in the wild". Endangered and critically endangered species also meet the quantitative criteria of vulnerable species, and are listed separately. See: List of endangered amphibians, List of critically endangered amphibians. Vulnerable, endangered and critically endangered species are collectively referred to as threatened species
A threatened species is any species (including animals, plants and fungi) which is vulnerable to extinction in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of ''critical depensatio ...
by the IUCN.
Additionally 1567 amphibian species (24% of those evaluated) are listed as data deficient
A data deficient (DD) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as offering insufficient information for a proper assessment of conservation status to be made. This does not necessaril ...
, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed".
This is a complete list of vulnerable amphibian species evaluated by the IUCN.
Salamanders
Salamanders are a group of amphibians typically characterized by their lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults. All t ...
There are 93 salamander species assessed as vulnerable.
Olm
The olm () or proteus (''Proteus anguinus'') is an aquatic salamander which is the only species in the genus ''Proteus'' of the family Proteidae and the only exclusively cave-dwelling chordate species found in Europe; the family's other extant g ...
(''Proteus anguinus'')
Frogs
A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough skin texture due to ...
There are 573 frog species assessed as vulnerable.
True toads
A true toad is any member of the family Bufonidae, in the order Anura (frogs and toads). This is the only family of anurans in which all members are known as toads, although some may be called frogs (such as harlequin frogs). The bufonids now ...
True frogs
True frogs is the common name for the frog family Ranidae. They have the widest distribution of any frog family. They are abundant throughout most of the world, occurring on all continents except Antarctica. The true frogs are present in North Am ...
Other frog species
Gymnophiona
Caecilians (; ) are a group of limbless, vermiform (worm-shaped) or serpentine (snake-shaped) amphibians with small or sometimes nonexistent eyes. They mostly live hidden in soil or in streambeds, and this cryptic lifestyle renders caecilians ...
See also
* Lists of IUCN Red List vulnerable species * List of least concern amphibians * List of near threatened amphibians * List of endangered amphibians * List of critically endangered amphibians *List of recently extinct amphibians
The International Union for Conservation of Nature (IUCN) lists 35 extinction, extinct species, 146 possibly extinct species, two extinct in the wild species, and one possibly extinct in the wild species of amphibians.
Caudata, Salamanders
Exti ...
* List of data deficient amphibians
References
*Amphibians Vulnerable amphibians Vulnerable amphibians {{bots, deny=BG19bot,Yobot