Craugastor taurus

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Craugastor taurus
Craugastor taurus 60257303 (cropped).jpg
C. taurus in Golfito, Puntarenas, Costa Rica
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Craugastoridae
Genus: Craugastor
Species:
C. taurus
Binomial name
Craugastor taurus
(Taylor, 1958)
Synonyms

Eleutherodactylus taurusTaylor, 1958 [2]

Craugastor taurus is a species of frog in the family Craugastoridae. It is found in the Golfo Dulce region of southern Costa Rica and adjacent western Panama. It is sometimes known as the Golfito robber frog. [3]

Contents

Etymology

The specific name taurus is derived from the Latin word for "bull". [2]

Description

Craugastor taurus is a large, somewhat toad-like frog. [2] Female Craugastor taurus can grow as large as 80 mm (3.1 in) in snout–vent length, whereas males are smaller, up to 42 mm (1.7 in) SVL. [4] [5] Dorsum is bumpy and grey or brown in colour, with darker blotches. Arms and legs have dark bars. Feet have extensive webbing. [5] Males have vocal sac and proportionally larger tympanum. [2]

Habitat and conservation

Natural habitats of Craugastor taurus are rocky areas of streams in humid lowland forests at elevations between 25 and 525 m (82 and 1,722 ft) above sea level. [1] It can be found on rocks or in the debris, roots, and vegetation along the stream banks. [5] It is a nocturnal species. [1]

This species was formerly abundant. However, between 2000 and 2008, only one frog has been observed, despite intensive field work. [1] The reasons of the decline are unknown, but chytridiomycosis (or similar disease) is a potential culprit. Outside protected areas, habitat loss remains a threat. [1] Fortunately, in 2014 two populations were reported from Punta Banco (Golfito canton). The species remains absent from the known historic sites. A possible explanation of its persistence in Punta Banco is the drier climate in the area, which is less conducive for outbreaks of chytridiomycosis, compared to the historic range further north. [6]

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Map showing Punta Banco, the location of remaining populations of Craugastor taurus

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References

  1. 1 2 3 4 5 IUCN SSC Amphibian Specialist Group (2020). "Craugastor taurus". IUCN Red List of Threatened Species . 2020: e.T56995A3053897. doi: 10.2305/IUCN.UK.2020-3.RLTS.T56995A3053897.en . Retrieved 14 November 2021.
  2. 1 2 3 4 Taylor, E. H. (1958). "Additions to the known herpetological fauna of Costa Rica with comments on other species. No. III". University of Kansas Science Bulletin. 39: 3–40.
  3. ↑ Frost, Darrel R. (2014). "Craugastor taurus (Taylor, 1958)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 30 December 2014.
  4. ↑ Luis Humberto Elizondo C.; Federico Bolaños V. (2011). "Craugastor taurus". Biodiversidad de Costa Rica. Instituto Nacional de Biodiversidad. Archived from the original on 2 April 2015. Retrieved 30 December 2014.
  5. 1 2 3 "Craugastor taurus Taylor, 1958". Amphibians of Panama. Smithsonian Tropical Research Institute. Archived from the original on 2 April 2015. Retrieved 31 December 2014.
  6. ↑ Chaves, Gerardo; Zumbado-Ulate, Héctor; García-Rodríguez, Adrián; Gómez, Edwin; Vredenburg, Vance Thomas; Ryan, Mason J. (December 2014). "Rediscovery of the Critically Endangered streamside frog, (Craugastoridae), in Costa Rica". Tropical Conservation Science. 7 (4): 628–638. doi: 10.1177/194008291400700404 .
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