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Corsican Painted Frog

Discoglossus montalentii Lanza, Nascetti, Capula & Bullini 1984

Description

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There are two color pattern varieties in this species. Plain colors, like dark brown, dark gray, reddish or red-brown, or individuals with dark brown spots. In the latter case, these spots are not light edged. The belly is a yellowish white. Although this species has a similar markings as to D. sardus it can be distinguished from D. sardus by a number of features. The fourth finger of D. sardus is wider than the base right after the tip, whereas the fourth finger of D. montalenti gets thinner from the base down. D. sardus also has shorter hind legs than D. montalenti (Noellert and Noellert 1992).. D. montalenti differs from all other species of Discoglossus in lacking a squamosal-maxillary articulation (Clarke and Lanza 1990).

Reference

Clarke, B. T. and Lanza, B. (1990). ''Notes on the morphology and distribution of the Corsican Painted Frogs: Discoglossus sardus Tschudi and D. montalentii Lanza, Nascetti, Capula & Bullini.'' Bulletino del museo regionale di scienze naturali, Torino, 8(2), 531-544.

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Distribution and Habitat

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D. montalenti is endemic to Corsica. It is mostly found in the central part of the island, from Corte and Cervione in the north to Porto-Vecchio in the south (Noellert and Noellert 1992). It is found in fresh water, seemingly preferring streams traversing woods and forests. D. montalenti lives partially sympatric, and in some localities even syntopic with its congener D. sardus. Due to its recent discovery as a cryptic congener of D. sardus, very little is known about the exact distribution and ecology of D. montalenti. Earlier studies on the biology of D. sardus may be attributed to either D. sardus or D. montalenti. D. montalenti seems to prefer running water of higher localities, whereas D. sardus lives at lower elevations and prefers slow running, stagnant and even brackish water (Gasc 1997).
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Life History, Abundance, Activity, and Special Behaviors

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Although there is a clear ecological distinction between D. montalenti and D. sardus, their biology has not been studied separately. Therefore, accounts of the biology of D. sardus may well include observations on D. montalenti.
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Life History, Abundance, Activity, and Special Behaviors

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The status of D. montalenti is not exactly known. The small number of suitable habitats on Corsica should be maintained in order to ensure the survival of D. montalenti.
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Corsican painted frog

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The Corsican painted frog (Discoglossus montalentii) is a species of frogs in the family Alytidae (formerly Discoglossidae).

It is endemic to the French island of Corsica. Its natural habitats are temperate forests and rivers.

Description

The Corsican painted frog is very similar in appearance to the Tyrrhenian painted frog but has a noticeably more rounded snout and a flatter back. The fourth finger of its front foot is tapering and not spatulate, and its hind legs are longer. It grows to about 6.5 centimetres (2.6 in) long. The colour varies and is either plain brown, grey or reddish brown, or one of these colours with dark brown spots. The underside is pale. The call is more musical than other painted frogs and consists of a repeated "poop – poop – poop".[2][3]

Distribution and habitat

The Corsican painted frog is found only on the island of Corsica. It mainly occurs in the central region at altitudes of 300 to 1,900 metres (980 to 6,230 ft), especially in mountain torrents and both still and flowing water in woods and forests. It shares its range with the Tyrrhenian painted frog ((Discoglossus sardus)) but is a more montane species, adept at leaping from rock to rock.[2][3]

Biology

Like other members of its family, the Corsican painted frog eats small invertebrates. It is unclear whether observations of this frog in the past were of D. sardus or D. montalentii. This is because they are so similar in appearance and were only recognised as different species in the late 20th century. Consequently, its reproductive habits are uncertain but it is believed to lay its eggs in small groups or singly on the bottom of watercourses. They are brownish-black and 1 to 1.5 millimetres (0.039 to 0.059 in) in diameter with a thick, gelatinous casing.[3]

References

  1. ^ IUCN SSC Amphibian Specialist Group (2020). "Discoglossus montalentii". IUCN Red List of Threatened Species. 2020: e.T6714A89707965. doi:10.2305/IUCN.UK.2020-3.RLTS.T6714A89707965.en. Retrieved 17 November 2021.
  2. ^ a b Arnold, Nicholas; Denys Ovenden (2002). Reptiles and Amphibians of Britain and Europe. London: Harper Collins Publishers Ltd. p. 64.
  3. ^ a b c "Discoglossus montalentii". AmphibiaWeb. Retrieved 2012-03-21.
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Corsican painted frog: Brief Summary

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The Corsican painted frog (Discoglossus montalentii) is a species of frogs in the family Alytidae (formerly Discoglossidae).

It is endemic to the French island of Corsica. Its natural habitats are temperate forests and rivers.

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