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Description

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A rather large Hyperolius (males 28-32 mm, females 30-36 mm) from the central forest. Dorsum warty with hour-glass pattern. Pupil horizontal. No distinct phase F, but females are often uniformly coloured. Belongs to a group together with Hyperolius hutsebauti and H. nimbae, occurring in clearings in the forest belt. Hyperolius tuberculatus is probably closely related to the savanna-living Hyperolius viridiflavus species complex.Some Hyperolius species shows developmental changes in patterning, with two phases, J (juveniles and many mature males) and F (mature females and some mature males). All newly metamorphosed individuals are phase J, which is normally brownish to green with paired light dorsolateral lines, or an hourglass pattern. All females, and some males, develop into phase F before the first breeding season. Phase F is often colorful and variable, showing the diagnostic color characteristics for the species or subspecies. Either well-defined morphs may be present, or graded variation. The sample treated by Largen and Dowsett-Lemaire (1991) from R. Congo under the name H. tuberculatus seems to differ in many respects from this treatment of tuberculatus. This account was taken from "Treefrogs of Africa" by Arne Schiøtz with kind permission from Edition Chimaira (http://www.chimaira.de/) publishers, Frankfurt am Main.
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Distribution and Habitat

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Bushland from Cameroun, Gabon, R. Congo? to eastern R. D. Congo south of the Congo River, according to Laurent. Occurs in clearings in the forest belt, as do the other members in its group, H. hutsebauti and H. nimbae.
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Hyperolius tuberculatus

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Hyperolius tuberculatus is a species of frog in the family Hyperoliidae. Its common name is rainforest reed frog.[2] It ranges from the southeastern Nigeria to the Central Africa in Cameroon, western Central African Republic, Equatorial Guinea, Gabon, Republic of the Congo, and Democratic Republic of the Congo. It is also likely to occur in the Cabinda enclave of Angola.[1][2]

Taxonomy and systematics

Hyperolius tuberculatus is part of the so-called H. tuberculatus complex, which also includes Hyperolius dintelmanni and Hyperolius hutsebauti. Molecular data suggest that specimens from the eastern part of the range of H. tuberculatus in the Democratic Republic of the Congo are actually H. hutsebauti, but the actual limits of these species are not known because of the lack of samples.[3]

Description

Adult males measure 28–32 mm (1.1–1.3 in) and adult females 30–36 mm (1.2–1.4 in) in snout–vent length. The dorsum is warty and shows an hour-glass pattern. The pupil is horizontal. There is no distinct phase F ("female phase") colouring, but females are often uniformly coloured.[4]

Habitat and conservation

Hyperolius tuberculatus is found in forest clearings and heavily degraded former forest as well as in secondary forest in the central African rainforest belt; it does not occur in closed, undisturbed forest. Its breeding habitat is flexible: breeding can take place in both still and flowing water, and in both temporary and permanent waterbodies. This common and adaptable species is not facing any significant threats.[1]

Dorsal view

References

  1. ^ a b c IUCN SSC Amphibian Specialist Group (2017). "Hyperolius tuberculatus". IUCN Red List of Threatened Species. 2017: e.T56216A97523116. doi:10.2305/IUCN.UK.2017-2.RLTS.T56216A97523116.en. Retrieved 15 November 2021.
  2. ^ a b c Frost, Darrel R. (2017). "Hyperolius tuberculatus (Mocquard, 1897)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 13 January 2018.
  3. ^ Bell, Rayna C.; Parra, Juan L.; Badjedjea, Gabriel; Barej, Michael F.; Blackburn, David C.; Burger, Marius; Channing, Alan; Dehling, Jonas Maximilian; Greenbaum, Eli; et al. (2017). "Idiosyncratic responses to climate-driven forest fragmentation and marine incursions in reed frogs from Central Africa and the Gulf of Guinea Islands". Molecular Ecology. 26 (19): 5223–5244. doi:10.1111/mec.14260. PMID 28753250.
  4. ^ "Hyperolius tuberculatus". AmphibiaWeb. University of California, Berkeley. 2008. Retrieved 13 January 2018.
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Hyperolius tuberculatus: Brief Summary

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Hyperolius tuberculatus is a species of frog in the family Hyperoliidae. Its common name is rainforest reed frog. It ranges from the southeastern Nigeria to the Central Africa in Cameroon, western Central African Republic, Equatorial Guinea, Gabon, Republic of the Congo, and Democratic Republic of the Congo. It is also likely to occur in the Cabinda enclave of Angola.

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