|Scientific Name:||Mantidactylus madecassus (Millot & Guibé, 1950)|
Rhacophorus madecassus Millot & Guibé, 1950
|Taxonomic Source(s):||Frost, D.R. 2015. Amphibian Species of the World: an Online Reference. Version 6.0. New York, USA. Available at: http://research.amnh.org/herpetology/amphibia/index.html.|
|Taxonomic Notes:||The taxonomic distinction between Mantidactylus madecassus and M. pauliani has recently been corroborated on the basis of genetic studies (M. Vences pers. comm.).|
|Red List Category & Criteria:||Endangered B1ab(iii) ver 3.1|
|Assessor(s):||IUCN SSC Amphibian Specialist Group|
|Contributor(s):||Glaw, F., Scherz, M.D. & Vences, M.|
Listed as Endangered in view of its extent of occurrence (EOO) of less than 1,290 km2, with all individuals in five or fewer threat-defined locations, and a continuing decline in the extent and quality of its habitat.
|Previously published Red List assessments:|
|Range Description:||This species is known only from Andringitra in south-eastern Madagascar, where the species is restricted to elevations between 1,500–2,500 m Asl. It has been found at about ten localities in Andringitra. Its EOO is 1,290 km2.|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||It is a rare species. Due to ongoing decline in the extent and quality of habitat, the population is suspected to be decreasing.|
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||This species lives in clear, rocky streams in forest or above the tree line. It is not dependent on forest and is usually found outside forest in rocky landscapes. It is largely aquatic and breeds in the slower-flowing parts of streams.|
|Continuing decline in area, extent and/or quality of habitat:||Yes|
|Movement patterns:||Not a Migrant|
|Use and Trade:||There are no records of this species being utilized.|
Its habitat is probably being impacted by overgrazing and fires (which are likely to be too frequent).
Species in this genus have tested positive for Batrachochytrium dendrobatidis (Bd), however currently there have been no negative effects observed within amphibian populations in Madagascar suggesting the Bd strain has a low virulence level (Bletz et al. 2015). High-altitude species are known to be more vulnerable to Bd, so this species is more likely than some others to be at risk on Madagascar (F. Glaw pers. comm. May 2016).
This species occurs in Andringitra National Park.
Ongoing and improved protection of high-elevation streams is required.
Further research is essential to fully understand the distribution, origin, type and virulence of Bd lineages found in Madagascar (Bletz et al. 2015).
Bletz, M.C., Rosa, G.M., Andreone, F., Courtois, E.A., Schmeller, D.S., Rabibisoa, N.H.C, Rabemananjara, F.C.E., Raharivololoniaina, L., Vences, M., Weldon, C., Edmonds, D., Raxworthy, C.J., Harris, R.N., Fisher, M.C. and Crottini, A. 2015. Widespread presence of the pathogenic fungus Batrachochytrium dendrobatidis in wild amphibian communities in Madagascar. Scientific Reports 5(8633): 1-10.
Blommers-Schlösser, R.M.A. 1979. Biosystematics of the Malagasy frogs. I. Mantellinae (Ranidae). Beaufortia 29(352): 1-77.
Blommers-Schlösser, R.M.A. and Blanc, C.P. 1991. Amphibiens (première partie). Fauna de Madagascar 75: 1-379.
Glaw, F. and Vences, M. 1994. A Fieldguide to the Amphibians and Reptiles of Madagascar. Second Edition. Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn.
Glaw, F. and Vences, M. 2007. A Fieldguide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences & Glaw Verlag, Cologne.
IUCN. 2017. The IUCN Red List of Threatened Species. Version 2017-2. Available at: www.iucnredlist.org. (Accessed: 14 September 2017).
Thomas, M., Raharivololoniaina, L., Glaw, F., Vences, M. and Vieites, D.R. 2005. Montane tadpoles in Madagascar: Molecular identification and description of the larval stages of Mantidactylus elegans, Mantidactylus madecassus, and Boophis laurenti from the Andringitra Massif. Copeia 2005(1): 174-188.
Vences, M. and Glaw, F. 1999. Variation in Mantidactylus madecassus Millot & Guibé, 1950, a little known Malagasy frog, with resurrection of Mantidactylus pauliani Guibé, 1974. Herpetological Journal 9: 101-110.
Vieites, D. R. Wollenburg, K.C. Andreone, F. Kohler, J. Glaw, F. and Vences, M. 2009. Vast underestimation of Madagascar’s biodiversity evidenced by an integrative amphibian inventory. Proceeding of the National Academy of Sciences 106: 8267-8272.
Wollenberg, K.C., Vieites, D.R., Glaw, F. and Vences, M. 2011. Speciation in little: the role of range and body size in the diversification of Malagasy mantellid forgs. BMC Evolutionary Biology 11(217): 1-15.
|Citation:||IUCN SSC Amphibian Specialist Group. 2017. Mantidactylus madecassus. The IUCN Red List of Threatened Species 2017: e.T57498A84173634.Downloaded on 20 February 2018.|
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