Ololygon cosenzai

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Ololygon cosenzai
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 cosenzai
Scientific name
Ololygon cosenzai
Lacerda , Peixoto & Feio , 2012

The neotropical frog Ololygon cosenzai ( synonym : Scinax cosenzai ) belongs to the subfamily buck-toe tree frogs within the tree frog family . The genus Ololygon was established in 2005 for the species of the former Scinax-catarinae - clade built.

The species name of Ololygon cosenzai honors Braz Antônio Pereira Cosenza for his studies of the flora and fauna of the "Serra do Brigadeiro"

distribution

This species has so far only been detected in two rocky areas in Parque Estadual da Serra do Brigadero, which is located in the Brazilian state of Minas Gerais . Lacerda et al. (2012) suggest, however, that the species is more widespread, as it appears to be abundant in Alcantarea extensa , a terrestrial bromeliad species and these plants are commonly found in other rocky areas of the state of Minas Gerais.

description

The males of this knee-toe tree frog have a head-to-trunk length of 17.29 to 20.97 mm, the females of 22.65 to 24.02 mm. These gray-brown frogs have a dark, lateral stripe starting from the eyes. On the inside of the thighs there are irregular yellow spots. The head is longer than it is wide, the muzzle protrudes when viewed from the side and is slightly pointed when viewed from the dorsal side. The species has no webbed feet between the first and second toes. The species differs from other representatives of the group in particular by its different callers and its shorter head-torso length.

Habitat and Ecology

Ololygon cosenzai seems to be bound to terrestrial bromeliads of the species Alcantarea extensa , which occurs in rocky areas of the Zona da Mata region of the state of Minas Gerais. Call activity appears to be strongest at night during the rainy season. The species was found more frequently in solitary bromeliads. Sometimes one or two eggs were also laid in pools of water in the lateral leaves of the bromeliads and not directly in the central (larger) pool of water. Most often two tadpoles share the same pool of water.

Danger

For the Red List of IUCN was Ololygon cosenzai not yet been processed. Lacerda et al. (2012) suspect that the species is not acutely endangered, as Alcantarea extensa is widespread in rocky areas of Minas Gerais. However, this is only an assumption and systematic monitoring has not yet taken place. The species occurs at least in the Parque Estadual da Serra do Brigadero reserve.

Individual evidence

  1. ^ William E. Duellman, AB Marion & S. Blair Hedges: Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae). Zootaxa, 4104, pp. 1–109, 2016
  2. ↑ Julián Faivovich, Célio FB Haddad, PCA Garcia, Darrel R. Frost, JA 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, p. 240, 2005.
  3. ↑ a b c d J. VA Lacerda, OL Peixoto & RN Feio (2012): A new species of the bromeligenous Scinax perpusillus group (Anura; Hylidae) from Serra do Brigadeiro, State of Minas Gerais, Southeastern Brazil . Zootaxa, 3271, pp. 31-42, 2012.
  4. ↑ LM Versieux & T. Wendt: Checklist of the Bromeliaceae of Minas Gerais, Brazil, with notes on taxonomy and endemism. Selbyana 27, pp. 107-146, 2006.

literature

  • JVA Lacerda, OL Peixoto & RN Feio: A new species of the bromeligenous Scinax perpusillus group (Anura; Hylidae) from Serra do Brigadeiro, State of Minas Gerais, Southeastern Brazil Zootaxa 3271: 31-42, 2012 online: PDF

Web links

  • Darrel R. Frost: Ololygon-cosenzai , Amphibian Species of the World: an Online Reference, Version 6.0, American Museum of Natural History, 1998-2019, accessed August 10, 2019