AMPHIBIAWEB
Rhombophryne mangabensis

Subgenus: Cophylinae
family: Microhylidae
subfamily: Cophylinae
 
Species Description: Glaw F, Koehler J, Vences M 2010 A new fossorial frog, genus Rhombophryne, from Nosy Mangave Special Reserve, Madagascar. Zoosyst Evol 86:235-243.

© 2010 Sebastian Wolf (1 of 1)
Conservation Status (definitions)
IUCN (Red List) Status Vulnerable (VU)
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 Nosy Mangabe island off the north east coast of Madagascar next to the town of Maroantsetra. These specimens were collected in 2005, ca. 50–100 m above sea level (Glaw et al. 2010). It is only known from one threat-defined location, and it has a restricted range with an extent of occurrence of 6 km2.

Habitat and Ecology

The species inhabits primary low-altitude rainforest, where it buries deep into the leaf litter. Only smaller adults and juveniles were found on the forest floor during the day, adults remained hidden in the litter whilst calling (Glaw et al. 2010). It presumably breeds by larval development and has non-feeding tadpoles, similar to other species in Cophylinae. It may reproduce in burrows within the leaf litter (M.D. Scherz pers. comm. November 2015).

Population

It is only known from 13 specimens collected in 1991 and 2005 at Nosy Mangabe Island. The population is thought to be stable.

Population Trend

stable

Major Threats

This island forest habitat is well protected and there are currently no threats to the species (A. Rakotoarison & M.D. Scherz, pers. comm.). However Batrachochytrium dendrobatidis has been confirmed in Madagascar and could pose a serious threat to this species if it is found to be susceptible to the disease.

Conservation Actions

Conservation Action
The species occurs in Nosy Mangabe Special Reserve.

Research Needed
Research is required on ecology, especially its breeding behaviour (M.D. Scherz pers. comm. November 2015).

Red List Status

Vulnerable (VU)

Rationale

Listed as Vulnerable D2 because its range is restricted to Nosy Mangabe island, which has an extent of occurrence (EOO) of only 6 km2, and there is a potential future threat of BdBd has been confirmed in Madagascar, and if this species is found to be susceptible to the disease then the entire population would be at risk in its very small, restricted range.

Citation

IUCN SSC Amphibian Specialist Group 2016. Rhombophryne mangabensis. The IUCN Red List of Threatened Species 2016: e.T49581234A49581242. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T49581234A49581242.en .Downloaded on 12 December 2018

 

IUCN Terms of Use