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Mantidactylus delormei 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Mantellidae

Scientific Name: Mantidactylus delormei Angel, 1938
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: We follow Glaw and Vences (2006) in removing this species from the synonymy of Mantidactylus brevipalmatus.

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii) ver 3.1
Year Published: 2017
Date Assessed: 2017-01-03
Assessor(s): IUCN SSC Amphibian Specialist Group
Reviewer(s): Luedtke, J.
Contributor(s): Glaw, F., Scherz, M.D. & Stuart, S.N.
Facilitator/Compiler(s): Hobin, L.
Justification:
Listed as Endangered because its range has an extent of occurrence (EOO) of 4,700 km2, with all individuals in three threat-defined locations, and there is continuing decline in the extent and quality of its habitat.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species has so far been recorded only from the Andringitra Massif, and from Maharira forest in Ranomafana National Park, southeastern Madagascar; between 1,300–1,800 m Asl. The EOO of its current known range is 4,700 km2, and is estimated to represent three threat-defined locations.
Countries occurrence:
Native:
Madagascar
Additional data:
Number of Locations:3
Lower elevation limit (metres):1300
Upper elevation limit (metres):1800
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is a relatively rare species (M. Vences pers. comm.) and its population is suspected to be decreasing due to ongoing decline in the quality and extent of its habitat.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It lives alongside streams in mid to high-elevation forests, and has not been found in more open forest habitats. Males call during the day and at dusk from the ground along streams (Glaw and Vences 2007), and the species breeds in streams.
Systems:Terrestrial; Freshwater
Continuing decline in area, extent and/or quality of habitat:Yes
Movement patterns:Not a Migrant

Use and Trade [top]

Use and Trade: There are no records of this species being utilized.

Threats [top]

Major Threat(s): It is currently known from sites within protected areas, but it probably occurs between these areas at unprotected sites, which are likely to be subject to forest loss from agriculture and logging.

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).

Conservation Actions [top]

Conservation Actions: Conservation Actions
This species has been recorded from Andringitra and Ranomafana National Parks.

Conservation Needed
Ongoing and improved protection of known sites and the habitat on which the species relies is required.

Research Needed
Research is needed to determine its geographic distribution, ecological requirements and conservation needs. It is also essential to 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 delormei. The IUCN Red List of Threatened Species 2017: e.T136059A84184973. . Downloaded on 24 September 2017.
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