AMPHIBIAWEB
Rhombophryne vaventy

Subgenus: Cophylinae
family: Microhylidae
subfamily: Cophylinae
 
Species Description: Scherz MD, Ruthensteiner B, Vences M, Glaw F 2014 A new microhylid frog, genus Rhombophryne, from northeastern Madagascar, and a re-description of R. serratopalpebrosa using micro-computed tomography. Zootaxa 3860: 547-560.

© 2017 Mark D. Scherz (1 of 1)
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

This species is only known from the type locality in Marojejy National Park at 1,326 m asl in the northeast of Madagascar (Glaw and Vences 2011). However, its elevational range is unknown - it may occur both higher and lower than currently recorded - and the limits of its range are also unknown, so it has tentatively been mapped to the boundaries of the Park and its extent of occurrence (EOO) is 780 km2.

Habitat and Ecology

Known only from the primary forests around Camp Simpona on the upper slopes of the Marojejy massif. Its breeding strategy is unconfirmed, but current knowledge on Cophylinae frogs indicates they have "nidicolous, endotrophic (non-feeding) tadpoles, lay their eggs in small burrows, leaf axils, and tree holes, and exhibit some degree of parental care (nest guarding)" (Scherz et al. 2014).

Population

The population trend is decreasing due to ongoing habitat loss within its currently mapped range.

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).

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.

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 within Marojejy National Park.

Taxonomic Notes

This species has been split from the broader concept of Rhombophryne serratopalpebrosa (Scherz et al. 2014).

Citation

IUCN SSC Amphibian Specialist Group 2016. Rhombophryne vaventy. The IUCN Red List of Threatened Species 2016: e.T79130249A84185495. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T79130249A84185495.en .Downloaded on 14 November 2018

 

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