Dwarf Coqui

Dwarf Coqui
Dwarf Coqui
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Leptodactylidae
Genus: Eleutherodactylus
Species: E. unicolor
Binomial name
Eleutherodactylus unicolor
Stejneger, 1904

The Dwarf Coqui, Elfin Coqui, Coqui Duende, or Duendecito (Eleutherodactylus unicolor) is a species of frog in the Leptodactylidae family. It is endemic to Puerto Rico. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montanes.The dwarf coqui is just a smaller version of the coqui frog. The “typical male snout-vent length (SLV) is 0.6 inches (17 millimeters), the females are slightly larger.”[1] The dwarf coqui are also called the Eleutheridactylus unicolor.[2] “In Puerto Rico all Eleutherodactylus frogs are generally called “Coqui” frogs…….”[3]

Contents

History

The Eleutheridactylus unicolor is said to come from Puerto Rico, but there is talk about them originating from Florida.[4] The Eleutheridactylus coqui was found in Hawaii but no one knows whether they came from Puerto Rico or Florida. “Because it appears that there are no longer any populations in Florida (Steven Johnson, pers. comm.), it would be difficult to determine genetically whether Eleutheridactylus coqui came from Florida or Puerto Rico”.[5] As of today, the Eleutheridactylus unicolor can be found on the island of Puerto Rico. But although the Eleutherodactylus unicolor is found in Puerto Rico, they have also been found in the greenhouses of California, Hawaii, and Guam.[6]

Description

External audio
Frog Call
Dwarf Coqui call

The Eleutherodactylus unicolor, dwarf coqui, are small frogs with a grayish-brown back, a black-mask like face, and a series of light dots that follow through to the posterior of the frog.[7] The females have a light line across the eyelid and usually have “white dots along the face, flanks, forelimbs, and thighs.”[8] The Eleutherodactylus species do not have webbed feet. The Eleutherodactylus frogs, especially the dwarf coqui, have individual finger-like feet, with round disc-like toes.[9]“Eleutherodactylus coqui is often referred to as the “Coqui,” which originates from its distinctive call.”[10] The “Coqui” frogs are known for their unusual sound that they make. “The call of the Dwarf Coqui has been compared to the sound of a fingernail being dragged across the teeth of a comb or the winding of a watch.”[11] The first part of the coqui call sounds like “ko” and then the second part of the call sounds like “Kee.” So when heard, the Eleutherodactylus unicolors call sounds like “Ko-Kee-Ko-Kee.”[12] The call of the Eleutheridactylus unicolor can be heard on the island of Puerto Rico from sun-set to sun-rise.[13] The dwarf coqui is most active at night and therefore their call is mostly heard at night.[14] The Eleutherodactylus unicolor species is found to be stable as of right now. But even though there are no immediate threats to the dwarf coqui, the species is vulnerable to extinction.[15] Because the dwarf coqui is restricted in range, some of the things that can cause extinction are invasive species, climate change, severe weather, and other impacts.[16]

Habitat and Diet

Like the coqui, the Eleutherodactylus unicolor likes to live in places with moisture. They like to live under logs, caves, and even under trash.[17] The dwarf coqui can also be found in the subtropical/ tropical moist lowland and moist montane.[18] Schwartz and Henderson say that almost all Eleutherodactylus coqui can be found everywhere in Puerto Rico where there is high humidity and adequate cover.[19] “Moisture has been found to greatly influence Eleutherodactylus coqui behavior.”[20] Also, “The dwarf coqui lives under moss, rocks, and roots in the elfin forest of the Luquillo Mountains…….”[21] Like the coqui, the dwarf coqui’s diet and food choices consists of crickets, moths, and spiders.[22] While a young dwarf coqui eats mostly ants.[23]

Reproduction

When it’s time to mate, the male Eleutherodactylus unicolor comes out of hiding and starts to call to the females. “Male fogs use the “ko” part of the call to interact with nearby males and the “kee” part to attract the females.”[24] The male’s success in mating is directly related to his call effort.[25] After the male has attracted the female, she lays her eggs on a leaf or an abandoned bird’s nest.[26] The female dwarf coqui is chased away by the male. The male protects the eggs until they are hatch, which can take up to 17-26 days.[27] Before the Eleutherodactylus coqui hatch, they undergo full development, which means when they hatch, they are already fully developed little frogs instead of tadpoles.[28] The males stay with the baby frogs for a little while after they hatch and protect them.[29] “Eleutherodactylus coqui frogs reproduce year-round. Males breed close to monthly and the females breed about once every two months.”[30]

See also

Portal icon Puerto Rico portal
Portal icon Biology portal
Portal icon Amphibians and Reptiles portal


Source

  1. ^ Mowbray, Alan. “Wildlife Facts - October 2006 - Dwarf Coqui.” El Yunque National Forest. US Forest Service. October . 2006. Web. 2 March. 2010.
  2. ^ Rios-Lopez, Neftali. “Eleutherodactylus unicolor.” IUCN Red List. IUCN, 2009. Web . 2 March. 2010.
  3. ^ Mowbray, Alan. “Wildlife Facts - October 2006 - Dwarf Coqui.” El Yunque National Forest. US Forest Service. October . 2006. Web. 2 March. 2010.
  4. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  5. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  6. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  7. ^ Mowbray, Alan. “Wildlife Facts - October 2006 - Dwarf Coqui.” El Yunque National Forest. US Forest Service. October . 2006. Web. 2 March. 2010.
  8. ^ Mowbray, Alan. “Wildlife Facts - October 2006 - Dwarf Coqui.” El Yunque National Forest. US Forest Service. October . 2006. Web. 2 March. 2010.
  9. ^ Mowbray, Alan. “Wildlife Facts - October 2006 - Dwarf Coqui.” El Yunque National Forest. US Forest Service. October . 2006. Web. 2 March. 2010.
  10. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  11. ^ Mowbray, Alan. “Wildlife Facts - October 2006 - Dwarf Coqui.” El Yunque National Forest. US Forest Service. October . 2006. Web. 2 March. 2010.
  12. ^ “Coqui Frog.” Frog world. 2009. Web. 2 March. 2010.
  13. ^ “Coqui Frog.” Frog world. 2009. Web. 2 March. 2010.
  14. ^ “Coqui Frog.” Frog world. 2009. Web. 2 March. 2010.
  15. ^ Rios-Lopez, Neftali. “Eleutherodactylus unicolor.” IUCN Red List. IUCN, 2009. Web . 2 March. 2010.
  16. ^ Rios-Lopez, Neftali. “Eleutherodactylus unicolor.” IUCN Red List. IUCN, 2009. Web . 2 March. 2010.
  17. ^ “Coqui Frog.” Frog world. 2009. Web. 2 March. 2010.
  18. ^ Rios-Lopez, Neftali. “Eleutherodactylus unicolor.” IUCN Red List. IUCN, 2009. Web . 2 March. 2010.
  19. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  20. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  21. ^ Mowbray, Alan. “Wildlife Facts - October 2006 - Dwarf Coqui.” El Yunque National Forest. US Forest Service. October . 2006. Web. 2 March. 2010.
  22. ^ “Coqui Frog.” Frog world. 2009. Web. 2 March. 2010.
  23. ^ “Coqui Frog.” Frog world. 2009. Web. 2 March. 2010.
  24. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  25. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  26. ^ “Coqui Frog.” Frog world. 2009. Web. 2 March. 2010.
  27. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  28. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  29. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010
  30. ^ Beard, Karen H., Emily A. Price, and William C. Pitt. “Biology and Impacts of Pacific Island Invasive Species. 5. Eleutherodactylus coqui, the Coqui Frog (Anura:Lepftodactylidae).” Pacific Science 63.3 (2009):297-316. Academic Search Complete. Web. 8 Mar. 2010

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