Astylosternus nganhanus: Difference between revisions
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{{short description|Species of frog}} |
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{{Italic title}} |
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{{Taxobox |
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{{speciesbox |
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| image = |
| image = |
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| status = CR | status_system = IUCN3.1 |
| status = CR | status_system = IUCN3.1 |
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| status_ref = <ref name="iucn status 17 November 2021">{{cite iucn |author=IUCN SSC Amphibian Specialist Group |date=2019 |title=''Astylosternus nganhanus'' |volume=2019 |page=e.T54420A95847037 |doi=10.2305/IUCN.UK.2019-3.RLTS.T54420A95847037.en |access-date=17 November 2021}}</ref> |
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| regnum = [[Animalia]] |
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| phylum = [[Chordata]] |
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| authority = {{interlanguage link multi|Jean-Louis Amiet|fr|lt=Amiet}}, 1978 |
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| classis = [[Amphibia]] |
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| synonyms = |
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| synonyms_ref = <ref name=Frost/> |
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| familia = [[Astylosternidae]] |
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}} |
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| genus = ''[[Astylosternus]]'' |
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| species = '''''A. nganhanus''''' |
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| binomial = ''Astylosternus nganhanus'' |
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| binomial_authority = Amiet, 1978 |
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| synonyms = }} |
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'''''Astylosternus nganhanus''''' is a species of [[frog]] in the [[Astylosternidae]] family. |
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It is [[Endemism|endemic]] to [[Cameroon]]. |
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Its natural [[habitat]]s are subtropical or tropical moist [[montane forest|montanes]], subtropical or tropical high-altitude [[grassland]], [[river]]s, and heavily degraded former forest. |
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It is threatened by [[habitat loss]]. |
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==Source== |
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* Amiet, J.-L. 2004. [http://www.iucnredlist.org/search/details.php/54420/all Astylosternus nganhanus]. [http://www.iucnredlist.org 2006 IUCN Red List of Threatened Species. ] Downloaded on 20 July 2007. |
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'''''Astylosternus nganhanus''''' is a species of [[frog]] in the family [[Arthroleptidae]]. It is [[Endemism|endemic]] to [[Cameroon]] and known from Mount Nganha on the [[Adamawa Plateau]];<ref name=Frost/> it is probably endemic to that area.<ref name="iucn status 17 November 2021" /> Common name '''Nganha night frog''' has been coined for it.<ref name=Frost/><ref name=EDGE/> This poorly known species is only known from five specimens.<ref name="iucn status 17 November 2021" /><ref name=EDGE/> |
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==Description== |
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{{Arthroleptidae-stub}} |
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Adult measure about {{convert|45|mm|in|1|abbr=on}} in snout–vent length. The head is very narrow, triangular, and flattened in shape. The eyes are rather small and do not protrude greatly. The fingers are fairly short and slender. The hind-limbs are relatively short, and the toe tips are not dilates into discs. Skin is smooth, apart for some longitudinal fine wrinkles, in particular on the flanks. The colouration is dark with black patterning. The top of arms and fore-arms have large, raised black bumps. The thighs have only few markings. Dark pigmentation is also present under the throat and along the ventral surfaces.<ref name=EDGE/> |
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==Habitat and conservation== |
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[[ca:Astylosternus nganhanus]] |
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''Astylosternus nganhanus'' occurs along watercourses in a few narrow gallery forests, and in seepage areas in the nearby grassland, at elevations of {{convert|1400|–|1700|m|abbr=on}} [[above sea level]]. [[Tadpole]]s probably belonging to this species have been found in rock pools in streams.<ref name="iucn status 17 November 2021" /> |
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[[es:Astylosternus nganhanus]] |
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[[fr:Astylosternus nganhanus]] |
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This species, known from only a single population, is probably at severe risk from [[habitat loss]] caused by [[smallholding|smallholder]] farming activities and subsistence wood extraction. It is not known to occur in any protected areas.<ref name="iucn status 17 November 2021" /> |
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[[pl:Astylosternus nganhanus]] |
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[[vi:Astylosternus nganhanus]] |
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==References== |
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{{reflist|30em|refs= |
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<ref name=EDGE>{{cite web |url=http://mail.edgeofexistence.org/amphibians/species_info.php?id=618&search=ED |title=74. Nganha Night Frog (''Astylosternus nganhanus'') |author= |year= |work=EDGE of Existence programme (Evolutionarily Distinct and Globally Endangered species) |publisher=Zoological Society of London |accessdate=14 April 2018}}</ref> |
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<ref name=Frost>{{cite web |url=http://research.amnh.org/vz/herpetology/amphibia/Amphibia/Anura/Arthroleptidae/Astylosterninae/Astylosternus/Astylosternus-nganhanus |title=''Astylosternus nganhanus'' Amiet, 1978 |author=Frost, Darrel R. |year=2018 |work=Amphibian Species of the World: an Online Reference. Version 6.0 |publisher=American Museum of Natural History |accessdate=14 April 2018}}</ref> |
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}} |
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{{Taxonbar|from=Q2236610}} |
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[[Category:Frogs of Africa]] |
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[[Category:Amphibians of Cameroon]] |
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[[Category:Amphibians described in 1978]] |
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[[Category:EDGE species]] |
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[[Category:Taxonomy articles created by Polbot]] |
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[[Category:Taxa named by Jean-Louis Amiet]] |
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[[Category:Fauna of the Cameroonian Highlands forests]] |
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Latest revision as of 06:49, 15 January 2023
| Astylosternus nganhanus | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Family: | Arthroleptidae |
| Genus: | Astylosternus |
| Species: | A. nganhanus
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| Binomial name | |
| Astylosternus nganhanus Amiet, 1978
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Astylosternus nganhanus is a species of frog in the family Arthroleptidae. It is endemic to Cameroon and known from Mount Nganha on the Adamawa Plateau;[2] it is probably endemic to that area.[1] Common name Nganha night frog has been coined for it.[2][3] This poorly known species is only known from five specimens.[1][3]
Description[edit]
Adult measure about 45 mm (1.8 in) in snout–vent length. The head is very narrow, triangular, and flattened in shape. The eyes are rather small and do not protrude greatly. The fingers are fairly short and slender. The hind-limbs are relatively short, and the toe tips are not dilates into discs. Skin is smooth, apart for some longitudinal fine wrinkles, in particular on the flanks. The colouration is dark with black patterning. The top of arms and fore-arms have large, raised black bumps. The thighs have only few markings. Dark pigmentation is also present under the throat and along the ventral surfaces.[3]
Habitat and conservation[edit]
Astylosternus nganhanus occurs along watercourses in a few narrow gallery forests, and in seepage areas in the nearby grassland, at elevations of 1,400–1,700 m (4,600–5,600 ft) above sea level. Tadpoles probably belonging to this species have been found in rock pools in streams.[1]
This species, known from only a single population, is probably at severe risk from habitat loss caused by smallholder farming activities and subsistence wood extraction. It is not known to occur in any protected areas.[1]
References[edit]
- ^ a b c d e IUCN SSC Amphibian Specialist Group (2019). "Astylosternus nganhanus". IUCN Red List of Threatened Species. 2019: e.T54420A95847037. doi:10.2305/IUCN.UK.2019-3.RLTS.T54420A95847037.en. Retrieved 17 November 2021.
- ^ a b c Frost, Darrel R. (2018). "Astylosternus nganhanus Amiet, 1978". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 14 April 2018.
- ^ a b c "74. Nganha Night Frog (Astylosternus nganhanus)". EDGE of Existence programme (Evolutionarily Distinct and Globally Endangered species). Zoological Society of London. Retrieved 14 April 2018.