The Italian cave salamander (''Speleomantes italicus'') is a species of

salamander 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 ten ...

in the family

Plethodontidae Plethodontidae, or lungless salamanders, are a family of salamanders. Most species are native to the Western Hemisphere, from British Columbia to Brazil, although a few species are found in Sardinia, Europe south of the Alps, and South Korea. In ...

Endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...

, its natural

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

s are temperate

forest A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' ...

s, rocky areas,

cave A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea ...

s, and subterranean habitats (other than caves). It is threatened by

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

Description

The Italian cave salamander is a slender species with short limbs and grows to a length of about including a short tail. The head is broad with prominent eyes and there is a distinct groove between the nostrils and the edge of the lips. The feet are partially webbed. It is dark in colour with mottled reddish or yellowish markings and a dark belly. In the north of its range it is more variable in colour and sometimes hybridises with

Ambrosi's cave salamander Ambrosi's cave salamander or the Spezia cave salamander (''Speleomantes ambrosii'') is a species of salamander in the family Plethodontidae. Endemic to northwestern Italy, its natural habitats are temperate forests, rocky areas, caves, and subterra ...

(''Speleomantes ambrosii'').

Distribution and habitat

The Italian cave salamander is native to northern Italy where it is found in the northern and central

Apennine Mountains The Apennines or Apennine Mountains (; grc-gre, links=no, Ἀπέννινα ὄρη or Ἀπέννινον ὄρος; la, Appenninus or – a singular with plural meaning;''Apenninus'' (Greek or ) has the form of an adjective, which wou ...

. Its range extends from the

Province of Lucca The province of Lucca ( it, provincia di Lucca) is a province in the Tuscany region of Italy. Its capital is the city of Lucca. It has an area of and a total population of about 390,000. There are 33 ''comuni'' (singular: ''comune'') in the pro ...

and

Province of Reggio Emilia The Province of Reggio Emilia ( it, Provincia di Reggio nell'Emilia, Emilian: ''pruvînsa ed Rèz'') is one of the nine provinces of the Italian Region of Emilia-Romagna. The capital city, which is the most densely populated comune in the provin ...

southwards to the

Province of Pescara The province of Pescara ( it, provincia di Pescara; Abruzzese: ') is a province in the Abruzzo region of Italy. Its provincial capital is the city Pescara, which has a population of 119,483 inhabitants. As of 2017, it has a total population of ...

. It is found in wooded valleys, on rocky outcrops and in caves and underground waters, often in

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

areas, at altitudes of up to above sea level. An introduced population of this salamander exists in an abandoned

quarry A quarry is a type of open-pit mine in which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some jurisdictions to reduce their envi ...

in a beech forest near

Holzminden Holzminden (; nds, Holtsminne) is a town in southern Lower Saxony, Germany. It is the capital of the district of Holzminden. It is located on the river Weser, which at this point forms the border with the state of North Rhine-Westphalia. Histor ...

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

. It is hypothesized that the salamanders have been there for as long as a century, as there was a family in the area that owned both an animal import business and several nearby quarries back in the early 20th century.

Behaviour

The Italian cave salamander is usually found in areas of limestone rock, but sometimes in

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) ...

or ophiolitic areas. It is agile, climbing on cave walls and rocky outcrops. The female lays a small clutch of eggs in a crevice and these hatch by

direct development Marine larval ecology is the study of the factors influencing dispersing larvae, which many marine invertebrates and fishes have. Marine animals with a larva typically release many larvae into the water column, where the larvae develop before metam ...

into miniature salamanders.

Status

The

International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

has assessed the Italian cave salamander as being endangered. This is on the basis that, although it is common over much of its range, its total extent of occurrence is less than and suitable habitat may be declining locally.

References

{{Taxonbar, from=Q1675156 Speleomantes Cave salamanders Amphibians of Europe Endemic fauna of Italy Amphibians described in 1923 Taxonomy articles created by Polbot