AMPHIBIAWEB
Platypelis ravus

Subgenus: Cophylinae
family: Microhylidae
subfamily: Cophylinae
 
Species Description: Glaw F, Koehler J, Vences M. 2012. A tiny new species of Platypelis from the Marojejy National Park in northeastern Madagascar. European J Taxonomy 9: 1-9.
Conservation Status (definitions)
IUCN (Red List) Status Endangered (EN)
CITES
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: Madagascar

 

View distribution map using BerkeleyMapper.

   

From the IUCN Red List Species Account:

 

Range Description

The species is only known from Marojejy National Park at 1,326 m asl in north eastern Madagascar (Glaw et al. 2012). Its elevational range is unknown - it may occur both higher and lower than currently recorded - and the limits of its range are also unknown. However, it has not been identified in other surveys at similar elevations on other massifs in northern Madagascar, so may be a regional endemic to Marojejy massif - it has tentatively been mapped to the boundaries of the Park and its extent of occurrence (EOO) is 780 km2.

Habitat and Ecology

The species was founded in dense primary forest, calling from leaves in bushes and on trees at perch heights of 1-2 m above the ground (Glaw et al. 2012).  It presumably breeds by larval development.

Population

Numerous specimens were heard in the evening in dense primary forest directly next to Camp Simpona at Marojejy National Park (Glaw et al. 2012). The population is therefore assumed to be relatively abundant. The trend of the population is unknown, but it could be decreasing if it occurs within the mapped area and where habitat loss is occurring.

Population Trend

decreasing

Major Threats

Intensive illegal wood extraction of rosewood species within Marojejy National Park that followed the 2009 political crisis of Madagascar caused concerns for the survival of rainforest–restricted species, such as this one. However, while illegal rosewood logging has probably ceased, wood extraction currently taking place in the Park seems to occur at lower elevations and is not thought to have reached elevations where this species has been recorded; along the boundaries of Marojejy deforestation is taking place to clear land for agriculture (F. Glaw pers. comm. November 2015).

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

Conservation Actions
This species occurs in Marojejy National Park.

Conservation Needed
Improved protection of forests in the region is required.

Research Needed
Further research is required to clarify the species' distribution, population size and trends, and it is essential to fully understand the distribution, origin, type and virulence of Bd lineages found in Madagascar (Bletz et al. 2015).

Red List Status

Endangered (EN)

Rationale

Listed as Endangered because the extent of occurrence is 780 km2, it is known from fewer than five threat-defined locations and there is continuing decline in the extent and quality of its habitat.

Taxonomic Notes

Referred to by Glaw and Vences (2007) as Platypelis sp. aff. mavomavo 2, by Wollenberg et al. (2008) and as Platypelis sp. 4 by Vieites et al. (2009).

Citation

IUCN SSC Amphibian Specialist Group 2016. Cophyla rava. The IUCN Red List of Threatened Species 2016: e.T49570767A49570928. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T49570767A49570928.en .Downloaded on 15 December 2018

 

IUCN Terms of Use