M 17-19 m, F 18 mm (based on the type specimens). Specimens are typically characterized by a distinct yellow patch in the inguinal region, and by a white spot on the snout tip. Males with distinct femoral glands (Glaw and Vences 2007).
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Madagascar
Species occurs in Andohahela, Befotaka, Manantantely, Manombo, and Vondrozo (Glaw and Vences 2007) at 450-850 m asl (Vallan et al. 2008). It lives in swampy areas in both pristine and degraded rainforest (Vallan et. al 2008).
Life History, Abundance, Activity, and Special Behaviors
Calls: Unknown (Glaw and Vences 2007). It probably breeds in swamps and slow-moving small streams (Vallan et. al 2008).
Trends and Threats
Locally abundant but more research is needed on the ecology of this species and on population trends. It is not known from any protected areas, but its range is near the Parc National de Midongy du Sud. It can tolerate some habitat degradation. The major threat appears to be habitat loss due to subsistence agriculture, logging, charcoal manufacture, invasion and spread of eucalyptus, grazing and expanding human settlement (Vallan et. al 2008).
Possible reasons for amphibian decline
General habitat alteration and loss
Habitat modification from deforestation, or logging related activities
Intensified agriculture or grazing
Subtle changes to necessary specialized habitat
Glaw and Vences (1999) resurrected this species from the synonymy of M. biporus and assigned a population from An'Ala in central-eastern Madagascar to this species. However, recent findings of populations in south-eastern Madagascar, closer to the type locality of M. tricinctus, that are genetically very divergent, indicate that the An'Ala population is probably a distinct species (Glaw and Vences 2007).
Taken with permission from Glaw and Vences (2007) and Vallan et al. (2008).
Glaw, F., and Vences, M. (2007). Field Guide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences and Glaw Verlag, Köln.
Vallan, D., Glaw, F., and Vences, M. (2008). Mantidactylus tricinctus. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 31 March 2009.
Written by Miguel Vences and Frank Glaw (m.vences AT tu-bs.de), Assistant Professor and Curator of Vertebrates at the Institute for Biodiversity and Ecosystem Dynamics in the Zoological Museum at the University of Amsterdam
First submitted 2009-03-31
Edited by Kellie Whittaker (2009-05-01)
Species Account Citation: AmphibiaWeb 2009 Mantidactylus tricinctus <http://amphibiaweb.org/species/6173> University of California, Berkeley, CA, USA. Accessed Nov 18, 2018.
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Citation: AmphibiaWeb. 2018. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 18 Nov 2018.
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