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Description

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A medium-sized Hyperolius (males 23–30 mm, females 31 mm) from the forest in the Akwapim-Togo range in easternmost Ghana and adjacent part of Togo, with an almost uniform brown dorsum and a broad light dorsolateral stripe. Pupil horizontal. This form is very similar to H. picturatus, and should possibly be regarded as an eastern subspecies of it. This is not done here because the status of H. picturatus is so uncertain. H. baumanni differs from picturatus, however, in having a larger gular flap, a great constancy in colour-pattern and a different voice.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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A bushland form apparently confined to the forested “peninsula” stretching from the savannas of south-eastern Ghana into Togo. The known localities are within a few miles of each other in Ghana and Togo.
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Life History, Abundance, Activity, and Special Behaviors

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The call is characteristic, a slow, coarse initial sound followed by a long, accelerating series of clicks. This acceleration is only heard in a few other species such as H. pseudargus. There is a distinct frequency-intensity maximum at about 3000 cps.The eggs have a black and a white pole, the jelly is clear.
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Hyperolius baumanni

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Hyperolius baumanni is a species of frog in the family Hyperoliidae. It is known from the Akwapim-Togo Ranges along the border between Ghana and Togo[1][2][3][4] and from central Ghana.[5] Common name Baumann's reed frog has been coined for this species.[2][3]

Etymology

The specific name baumanni honours Ernst Baumann, a German zoologist (1863–1895) who worked at the German research station in Misahöhe, Togo—the type locality of this species.[6]

Description

Hyperolius baumanni is a medium-sized member of its genus, with males measuring 23–30 mm (0.91–1.18 in) and females about 31 mm (1.2 in) in snout–vent length. The dorsum is almost uniformly brown and bears a broad, light dorso-lateral stripe. The pupil is horizontal. Male advertisement call consists of a slow, coarse initial sound, followed by a long, accelerating series of clicks.[3][4]

Hyperolius baumanni is very similar to Hyperolius picturatus, and is possibly an eastern subspecies of the latter. However, the two have differences in morphology (larger gular flap in H. baumanni) and the advertisement call.[3][4]

Habitat and conservation

Hyperolius baumanni occurs in secondary forest, forest edge, and heavily degraded former forest (farm bush). Breeding is unknown but is assumed to involve attaching eggs to leaves above shallow, densely vegetated temporary ponds.[1]

The species is extremely abundant in its small range. No significant threats to this adaptable species are known. It occurs in the Kyabobo National Park in Ghana and in a number of smaller forest reserves. Given its presumed large population and adaptability, and despite its relatively small range, it is assessed as being of "Least Concern".[1]

References

  1. ^ a b c d IUCN SSC Amphibian Specialist Group (2013). "Hyperolius baumanni". IUCN Red List of Threatened Species. 2013: e.T56115A18374488. doi:10.2305/IUCN.UK.2013-2.RLTS.T56115A18374488.en. Retrieved 16 November 2021.
  2. ^ a b Frost, Darrel R. (2016). "Hyperolius baumanni Ahl, 1931". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 23 November 2016.
  3. ^ a b c d "Hyperolius baumanni Ahl, 1931". African Amphibians. Retrieved 23 November 2016.
  4. ^ a b c "Hyperolius baumanni". AmphibiaWeb: Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. 2008. Retrieved 23 November 2016.
  5. ^ Hillers, Annika; Boateng, Caleb Ofori; Segniagbeto, Gabriel Hoinsoudé; Agyei, Alex Cudjoe; Rödel, Mark-Oliver (2009). "Assessment of the amphibians in the forests of southern Ghana and western Togo". Zoosystematics and Evolution. 85 (1): 127–141. doi:10.1002/zoos.200800019.
  6. ^ Bo Beolens; Michael Watkins; Michael Grayson (22 April 2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. p. 18. ISBN 978-1-907807-42-8.
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Hyperolius baumanni: Brief Summary

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Hyperolius baumanni is a species of frog in the family Hyperoliidae. It is known from the Akwapim-Togo Ranges along the border between Ghana and Togo and from central Ghana. Common name Baumann's reed frog has been coined for this species.

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