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Hyloxalus exasperatus

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Hyloxalus exasperatus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Dendrobatidae
Genus: Hyloxalus
Species:
H. exasperatus
Binomial name
Hyloxalus exasperatus
(Lynch and Duellman [fr], 1988)
Synonyms

Colostethus exasperatus Duellman and Lynch, 1988[2]

Hyloxalus exasperatus or the Yapitya rocket frog is a species of frog in the family Dendrobatidae. It is endemic to Ecuador and found on the eastern slopes of the Andes in Pastaza and Morona-Santiago Provinces.[3][4] However, it is suggested that specimens from Pastaza represent a different, possibly undescribed species.[4][5][1]

Description

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Males measure 17.5–20 mm (0.69–0.79 in) and females 21 mm (0.83 in) in snout–vent length (based on only six and two specimens, respectively). Toe webbing is absent but it has a dorsolateral stripe and a short oblique lateral stripe. It is similar to Hyloxalus whymperi but lacks heavy darkening on the abdomen of males.[4][6] Male call is unknown.[6][5]

Etymology

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Students of South American frogs named this frog exasperatus for feelings of frustration and exasperation while waiting fifteen years for scientist Stephen R. Edwards to finish writing his reassessment of the genus Colostethus.[5]

Habitat

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Its natural habitats are pluvial premontane and very humid premontane forests. Its altitudinal range is 970–1,981 m (3,182–6,499 ft) asl.[1]

Scientists found some of these frogs in one protected park: Bosque Protector Cordillera Kutuku-Shaimi.[1]

Reproduction

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Scientists believe the frog reproduces the same way many other frogs in Hyloxalus do: the female frog lays eggs on the ground and the male frog carries the tadpoles to streams.[1]

Threats

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The IUCN classifies this frog as critically endangered and possibly extinct. Scientists believe that there are no more than 250 alive today, no more than 50 in each separate population.[1]

It is threatened by habitat loss and degradation caused by agricultural expansion, logging, and gold and copper mining.[1]

References

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  1. ^ a b c d e f g IUCN SSC Amphibian Specialist Group (2023). "Sky Blue Poison Dart Frog: Hyloxalus exasperatus". IUCN Red List of Threatened Species. 2023: e.T55077A98644535. doi:10.2305/IUCN.UK.2023-1.RLTS.T55077A98644535.en. Retrieved August 29, 2024.
  2. ^ Duellman, William E.; Lynch, John D. (1988). "Anuran amphibians from the Cordillera de Cutucú, Ecuador". Proceedings of the Academy of Natural Sciences of Philadelphia. 140 (2): 125–142. JSTOR 4064938.
  3. ^ Frost, Darrel R. (2014). "Hyloxalus exasperatus (Duellman and Lynch, 1988)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 23 March 2015.
  4. ^ a b c Coloma, LA; Ortiz, DA & Frenkel, C. (2013). "Hyloxalus exasperatus". Ron, S. R., Guayasamin, J. M., Yanez-Muñoz, M. H., Merino-Viteri, A., Ortiz, D. A. y Nicolalde, D. A. 2014. AmphibiaWebEcuador. Version 2014.0. Museo de Zoología, Pontificia Universidad Católica del Ecuador (QCAZ). Retrieved 23 March 2015.[permanent dead link]
  5. ^ a b c Luis A. Coloma; Diego A. Ortiz; Caty Frenkel (May 14, 2013). Luis A. Coloma (ed.). "Hyloxalus exasperatus (Duellman and Lynch, 1988)". AmphibiaWeb (in Spanish). University of California, Berkeley. Retrieved August 29, 2024.
  6. ^ a b Coloma, L. A. (1995). "Ecuadorian frogs of the genus Colostethus (Anura: Dendrobatidae)". Miscellaneous Publication, Museum of Natural History, University of Kansas. 87: 1–72.