|Scientific Name:||Mantidactylus tricinctus (Guibé, 1947)|
Gephyromantis tricinctus Guibé, 1947
|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:||This species was removed from the synonymy of Mantidactylus biporus by Glaw and Vences (1999) and tentatively redefined by Glaw and Vences (2007). However, additional candidate species have been identified by Vieites et al. (2009) demonstrating that the taxonomic identity of the species is still uncertain and in need of further revision. Candidate species from the subgenus Brygoomantis (see Vieites et al. 2009 and Wollenberg et al. 2011) are not considered in this assessment (F. Glaw pers. comm. May 2016).|
|Red List Category & Criteria:||Vulnerable B1ab(iii) ver 3.1|
|Assessor(s):||IUCN SSC Amphibian Specialist Group|
|Contributor(s):||Vallan, D., Glaw, F., Scherz, M.D. & Vences, M.|
Listed as Vulnerable because its extent of occurrence (EOO) is 7,838 km2, there is ongoing decline in the extent and quality of its habitat, and it occurs in fewer than five threat-defined locations.
|Previously published Red List assessments:|
|Range Description:||This species is known only from southeastern Madagascar at approximately 450–850 m Asl from Befotaka and Vondrozo, south to Andohahela National Park. The EOO of this range is 7,838 km2.|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||It is a locally abundant species. However 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 probably lives in swampy areas in both pristine and degraded rainforest, though it is not known how tolerant it is of habitat degradation. It probably breeds in swamps and slow-moving small 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 forest habitat is receding due to subsistence agriculture, timber extraction, charcoal manufacture, invasive spread of eucalyptus, livestock grazing and expanding human settlements.
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).
This species occurs in Andohahela National Park and its range comes close to, but it has not been confirmed from, Midongy du Sud National Park.
Ongoing and improved protection of the species' habitat is required.
Further research is essential to clarify the taxonomy and distribution of this species complex (F. Glaw pers. comm. May 2016), and fully understand the distribution, origin, type and virulence of Bd lineages found in Madagascar (Bletz et al. 2015).
|Citation:||IUCN SSC Amphibian Specialist Group. 2017. Mantidactylus tricinctus. The IUCN Red List of Threatened Species 2017: e.T57528A84177164.Downloaded on 25 April 2018.|