Ololygon arduous

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Ololygon arduous
Systematics
Subordination : Neobatrachia
without rank: Tree frogs (arboranae)
Family : Tree frogs i. w. S. (Hylidae)
Subfamily : Knick-toe tree frogs i. w. S. (Scinaxinae)
Genre : Ololygon
Type : Ololygon arduous
Scientific name
Ololygon arduous
( Peixoto , 2002)

Ololygon arduous ( synonym : Scinax arduous ) is a neotropical frog from the subfamily scinax (Scinaxinae) within the family of tree frogs . Within the genus Scinax , the species according to Faivovich et al. (2005)countedto the Scinax catharinae clade. In 2016, this clade became the genus Ololygon .

distribution

This species , endemic to Brazil, is so far only from Santa Teresa in Espírito Santo from 700 m above sea level. NN known.

description

The males of this very small knee-toe tree frog have a head-to-trunk length (KRL) of about 20 millimeters, the females of about 25 millimeters. Peixoto (2002) described the species using a 19.5 mm long adult male and a 26.2 mm long adult female. The head accounts for 36% of the KRL in this species. The dorsal color varies from light brown to light gray. The tree frog has a dark stripe on each side. The tadpoles are oval in shape from a dorsal perspective. The eyes are dorsolateral. The exact first description of the species including tadpoles of several Gosner levels can be found under The species occurs sympatric with the very similar Ololygon v-signatus , from which it can be derived. a. distinguished by a more robust physique, a larger head, and less warty skin.

Habitat and Ecology

The species presumably lives and reproduces in bromeliads in humid tropical forests .

Danger

The IUCN lists Scinax arduous as a data deficient because it was only newly described in 2002 and very little is known about it. So far only two individuals are known and therefore no statements can yet be made about the total population size. The researchers suspect, however, that the population trend is declining and the species is potentially endangered, as its habitat is endangered by expanding agriculture, settlements and monocultures, as well as the collection of bromeliads. In addition, the species does not occur in any protected area.

Individual evidence

  1. ↑ Julián Faivovich, Célio FB Haddad, Paulo CA Garcia, Darrel R. Frost, Jonathan A. Campbell & Ward C. Wheeler: Systematic review of the frog family Hylidae, with special reference to Hylinae: Phylogenetic analysis and taxonomic revision. Bulletin of the American Museum of Natural History 294, pp. 1-240, 2005.
  2. ^ William E. Duellman, AB Marion & S. Blair Hedges: Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae). Zootaxa, 4104, pp. 1–109, 2016
  3. ↑ OL Peixoto: Uma nova espécie de Scinax do grupo perpusillus para Santa Teresa, Estado do Espirito Santo, Brasil (Amphibia, Anura, Hylidae). Bol.Mus.Biol.Mello Leitao 13, pp. 7–15, 2002 ( PDF )
  4. ↑ Darrel R. Frost: Ololygon arduous , Amphibian Species of the World: an Online Reference, Version 6.0, American Museum of Natural History, 1998-2019, accessed August 10, 2019
  5. ↑ João Victor A. Lacerda, Rodrigo B. Ferreira, Geisa Alves de Souza, Hélio Ricardo da Silva & Renato N. Feio On the diagnosis and conservation of the poorly known bromeligenous Scinax arduous Peixoto, 2002 (Amphibia; Anura; Hylidae). Zootaxa, 4021, 3, pp. 401-417, September 2015 doi : 10.11646 / zootaxa.4021.3.1

literature

  • J. Faivovich, Celio FB Haddad, PC d. A. Garcia, Darrel R. Frost, JA Campbell, Ward C. Wheeler: Systematic review of the frog family Hylidae, with special reference to Hylinae: a phylogenetic analysis and taxonomic revision . Bulletin of the American Museum of Natural History, 294, pp. 1-240, 2005 online .
  • Oswaldo Luiz Peixoto: Uma nova espécie de Scinax do grupo perpusillus para Santa Teresa, Estado do Espirito Santo, Brazil (Amphibia, Anura, Hylidae). Boletim do Museu de Biologia Mello Leitão, Nova Série 13, pp. 7-15, 2002
  • Oswaldo Luiz Peixoto & B. Pimenta (2004): Scinax arduous . In: IUCN (2010): IUCN Red List of Threatened Species . Version 2010.1. IUCN Red List of Threatened Species . Accessed April 1, 2010.

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