Biology:Oreobates

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Oreobates is a genus of frogs in the family Strabomantidae.[1] Most species were formerly in the genus Ischnocnema, but were moved to this revalidated genus following a 2006 revision.[2] Its sister taxon is Lynchius.[1]

These frogs are found in the lower slopes of the Andes into the upper Amazon Basin from Colombia south to northern Argentina and east into western Brazil.[1]

A 2021 phylogenomic study found that Oreobates comprises two main clades: a northern group (Colombia–Peru) and a southern clade (Bolivia–Argentina), largely segregated by the elevational gradient.[3] The study also found that highland species are less genetically diverse than their lowland relatives and carry more nonsynonymous mutations — a pattern consistent with historically smaller, more isolated populations and reduced efficacy of natural selection in mountain habitats.

Description

Frogs in the genus Oreobates are small to medium-sized with males measuring 20–44 mm (0.79–1.73 in) and females 25–63 mm (0.98–2.48 in) in snout–vent length. They are generally brownish in colour. Body is robust with a short snout. The toes lack discs and fingers have reduced or absent discs; there is no webbing.[4]

Species of the genus Oreobates lay terrestrial eggs that undergo direct development.[4]

Species

The following species are recognised in the genus Oreobates:[1]

  • Oreobates amarakaeri Padial, Chaparro, Castroviejo-Fisher, Guayasamin, Lehr, Delgado, Vaira, Teixeira, Aguayo-Vedia, and De la Riva, 2012
  • Oreobates antrum Vaz-Silva, Maciel, Andrade, and Amaro, 2018
  • Oreobates ayacucho (Lehr, 2007)
  • Oreobates barituensis Vaira & Ferrari, 2008
  • Oreobates berdemenos Pereyra, Cardozo, Baldo, and Baldo, 2014
  • Oreobates chiquitanus Pansonato, Motta, Cacciali, Haddad, Strüssmann, and Jansen, 2020
  • Oreobates choristolemma (Harvey and Sheehy, 2005)
  • Oreobates colanensis Venegas, García Ayachi, Ormeño, Bullard, Catenazzi, and Motta, 2021
  • Oreobates cruralis (Boulenger, 1902)
  • Oreobates discoidalis (Peracca, 1895)
  • Oreobates gemcare Padial, Chaparro, Castroviejo-Fisher, Guayasamin, Lehr, Delgado, Vaira, Teixeira, Aguayo-Vedia, and De la Riva, 2012
  • Oreobates granulosus (Boulenger, 1903)
  • Oreobates heterodactylus (Miranda-Ribeiro, 1937)
  • Oreobates ibischi (Reichle, Lötters, and De la Riva, 2001)
  • Oreobates lehri (Padial, Chaparro, and De la Riva, 2007)
  • Oreobates lundbergi (Lehr, 2005)
  • Oreobates machiguenga Padial, Chaparro, Castroviejo-Fisher, Guayasamin, Lehr, Delgado, Vaira, Teixeira, Aguayo-Vedia, and De la Riva, 2012
  • Oreobates madidi (Padial, Gonzales-Álvarez, and De la Riva, 2005)
  • Oreobates pereger (Lynch, 1975)
  • Oreobates quixensis Jiménez de la Espada, 1872
  • Oreobates remotus Teixeira, Amaro, Recoder, Sena, and Rodrigues, 2012
  • Oreobates sanctaecrucis (Harvey and Keck, 1995)
  • Oreobates sanderi (Padial, Reichle, and De la Riva, 2005)
  • Oreobates saxatilis (Duellman, 1990)
  • Oreobates yanucu Köhler and Padial, 2016
  • Oreobates zongoensis (Reichle and Köhler, 1997)

References

  1. 1.0 1.1 1.2 1.3 Frost, Darrel R. (2022). "Oreobates Jiménez de la Espada, 1872". Amphibian Species of the World: An Online Reference. Version 6.1. American Museum of Natural History. https://amphibiansoftheworld.amnh.org/Amphibia/Anura/Brachycephaloidea/Strabomantidae/Pristimantinae/Oreobates. 
  2. Caramaschi, Ulisses; Canedo, Clarrisa (2006). "Reassessment of the taxonomic status of the genera Ischnocnema Reinhardt and Lütken, 1862 and Oreobates Jiménez-de-la-Espada, 1872, with notes on the synonymy of Leiuperus verrucosus Reinhardt and Lütken, 1862 (Anura: Leptodactylidae)". Zootaxa 1116: 43–54. doi:10.11646/zootaxa.1116.1.3. http://www.mapress.com/zootaxa/2006f/z01116p054f.pdf. 
  3. Montero-Mendieta, Santiago; De la Riva, Ignacio; Irisarri, Iker; Leonard, Jennifer A.; Webster, Matthew T.; Vilà, Carles (2021). "Phylogenomics and evolutionary history of Oreobates (Anura: Craugastoridae) — Neotropical frogs along elevational gradients". Molecular Phylogenetics and Evolution 161. doi:10.1016/j.ympev.2021.107167. 
  4. 4.0 4.1 Padial, José M.; Chaparro, Juan C.; De La Riva, Ignacio (2008). "Systematics of Oreobates and the Eleutherodactylus discoidalis species group (Amphibia, Anura), based on two mitochondrial DNA genes and external morphology". Zoological Journal of the Linnean Society 152 (4): 737–773. doi:10.1111/j.1096-3642.2007.00372.x. https://zenodo.org/record/5442692. 

Wikidata ☰ Q2142727 entry