|Scientific Name:||Mantella bernhardi Vences, Glaw, Peyrieras, Böhme & Busse, 1994|
|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:||Molecular data indicate the existence of at least two different management units for conservation in this species, corresponding to the north and south of its distribution range (Andreone et al. 2006, Vieites et al. 2006).|
|Red List Category & Criteria:||Vulnerable B1ab(iii) ver 3.1|
|Assessor(s):||IUCN SSC Amphibian Specialist Group|
|Contributor(s):||Raxworthy, C.J., Glaw, F., Cadle, J. & Scherz, M.D.|
Listed as Vulnerable because its extent of occurrence (EOO) is 17,136 km2, it occurs in fewer than 10 threat-defined locations, and there is continuing decline in the extent and quality of habitat.
|Previously published Red List assessments:|
|Range Description:||This species was previously only known from a single locality (next to Tolongoina, southeast Madagascar), however fieldwork has extended its range through the discovery of several new subpopulations in southeastern Madagascar, from Ranomafana National Park south to near Manambondro between 60–629 m Asl (Rabemananjara et al. 2005, Andreone et al. 2006, Glaw and Vences 2007). Its EOO is 17,136 km2.|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||It is locally abundant but there is very limited suitable habitat within its range. Due to ongoing decline in the extent and quality of habitat, the population is suspected to be decreasing. |
Studies have also shown a high level of genetic divergence between sub-populations in the northern and southern parts of the species distribution range which should be treated as two distinct conservation management units (Vieites et al. 2006).
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||This species is known from several, often fragmented, rainforest areas and is sometimes associated with swamps (Glaw and Vences 2007). It is not found in open areas, nor in littoral forest on a sandy substrate. It presumably breeds in swamps or small streams, with the eggs being laid on the ground near water.|
|Continuing decline in area, extent and/or quality of habitat:||Yes|
|Movement patterns:||Not a Migrant|
|Use and Trade:||This species is found in the international pet trade, with most animals originating from the single collection locality of Ambohimanana/Ambohimandroso (Andreone et al. 2006). International trade in this species is regulated by CITES and related national export quotas (Andreone et al. 2006).|
The area where the species occurs is being degraded rapidly due to subsistence agriculture, timber extraction, charcoaling, livestock grazing, fires, and expanding human settlements.
It is possible that over collecting for commercial and private purposes is a threat to this species. Species in this genus have also 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 is found in the Manombo Special Reserve and Ranomafana National Park. It is listed on CITES Appendix II.
There is a need for trade in this species to be carefully regulated including the maintaining limited exportation quotas. Attention should also be given to conservation of the two distinct population conservation units of this species (Andreone et al. 2006).
Further research is 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. Mantella bernhardi. The IUCN Red List of Threatened Species 2017: e.T57439A84165986.Downloaded on 17 October 2017.|