AMPHIBIAWEB
Oreophryne nana
Camiguin Narrow-Mouthed Frog
family: Microhylidae
subfamily: Asterophryinae
Conservation Status (definitions)
IUCN (Red List) Status Data Deficient (DD)
CITES
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: Philippines

 

View distribution map using BerkeleyMapper.

   

From the IUCN Red List Species Account:

 

Range Description

This species is known from Camiguin Island in the Philippines. It occurs between 300–1,200 m asl and its extent of occurrence (EOO) is 812 km2.

Habitat and Ecology

This species inhabits arboreal microhabitats in mossy and montane rainforests. It has also been found in secondary growth forest and human-modified habitats, but this is only marginally suitable. Individuals have been observed on leaves between 0.5–1.5 m above the ground (Sanguila et al. 2016). It reproduces by direct development. Eggs presumed to belong to this species have been observed under mosses in montane forests.

Population

The species was found to be abundant during surveys in February-March 2017 on Camiguin Island (Philippines Red List Assessment Workshop May 2017). The population is believed to be stable at present.

Population Trend

stable

Major Threats

There are low levels of disturbance and forest loss at lower elevations due to shifting agriculture, wood collection and charcoal production, illegal logging, and harvesting of non-timber forest products (Philippines Red List Assessment Workshop May 2017).

Conservation Actions

Conservation Actions
This species occurs in Mount Timpoong and Hibok-hibok Natural Monument. The local government is making efforts to develop a sustainable ecotourism management plan for the island, which includes the protection of its mountains and natural habitats (Philippines Red List Assessment Workshop May 2017).

Conservation Needed

Effective protection of the forest on Camiguin is needed for this species. This is one of the smallest frogs in the Philippines and could be a useful species in flagship awareness campaigns.

Research Needed
Taxonomic studies are needed to determine the identity of morphologically similar species on Mindanao. More information is needed on this species' distribution, population status, ecology, and threats.

Red List Status

Data Deficient (DD)

Rationale

Listed as Near Threatened because, even though the species has a restricted range, an extent of occurrence (EOO) of 812 km2, and there are ongoing threats, due to its abundant population, the availability of suitable habitat, ongoing efforts to manage and protect remaining habitat, and the low level of habitat loss on Camiguin Island, the species' population is not considered to be declining. Thus, the species is close to qualifying for Vulnerable under criterion B.

Taxonomic Notes

We acknowledge the discussion in Sanguila et al. (2016) regarding the morphological variation in Oreophryne species and maintain the restricted range of this species on the island of Camiguin (Philippines Red List Assessment Workshop May 2017).

Citation

IUCN SSC Amphibian Specialist Group 2018. Oreophryne nana. The IUCN Red List of Threatened Species 2018: e.T26210A58475302. http://dx.doi.org/10.2305/IUCN.UK.2018-1.RLTS.T26210A58475302.en .Downloaded on 21 November 2018

 

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