AmphibiaWeb - Gephyromantis zavona


(Translations may not be accurate.)

Gephyromantis zavona (Vences, Andreone, Glaw & Randrianirina, 2003)

Subgenus: Duboimantis
family: Mantellidae
subfamily: Mantellinae
genus: Gephyromantis
Species Description: Vences et al. Afr Zool. 2003
Gephyromantis zavona
© 2008 Miguel Vences and Frank Glaw (1 of 2)

sound file   hear call (175.5K MP3 file)

sound file   hear Fonozoo call

[call details here]

Conservation Status (definitions)
IUCN Red List Status Account Endangered (EN)
National Status None
Regional Status None
conservation needs Access Conservation Needs Assessment Report .


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M 35-41 mm, F 41-44 mm. Very similar to G. granulatus but slightly smaller, with a shorter snout, and less distinct femoral glands. Most specimens without a continuous light stripe along the upper lip (Glaw and Vences 2007).

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Madagascar

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Tsaratanana (Antsahamanara campsite), Manongarivo (Glaw and Vences 2007), at elevations between 800 to 1000 m (Andreone and Vences 2008). Found in pristine rainforest along rainforest streams (Glaw and Vences 2007).

Life History, Abundance, Activity, and Special Behaviors
Habits: Males call at night from the vegetation along rainforest streams. So far not found in secondary vegetation (Glaw and Vences 2007).

Calls: Series of 2-6 rapidly repeated unharmonious notes (Glaw and Vences 2007).

Trends and Threats
Listed as data deficient since it has only recently been described, and there is still very little information on its extent of occurrence, status and ecological requirements. Locally abundant. Found in two protected areas: the Réserve Naturelle Intégrale du Tsaratanana and the Réserve Spéciale de Manongarivo. Known only from pristine forest. Habitat is receding due to subsistence agriculture, logging, charcoal manufacture, invasion and spread of eucalyptus, grazing and expanding human settlement (Andreone and Vences 2008).

Possible reasons for amphibian decline

General habitat alteration and loss
Habitat modification from deforestation, or logging related activities
Intensified agriculture or grazing
Subtle changes to necessary specialized habitat

Taken with permission from Glaw and Vences (2007).


Andreone, F. and Vences, M. (2008). Gephyromantis zavona. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. Downloaded on 20 March 2009.

Glaw, F., and Vences, M. (2007). Field Guide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences and Glaw Verlag, Köln.

Originally submitted by: Miguel Vences and Frank Glaw (first posted 2009-03-20)
Edited by: Catherine Aguilar (2009-04-07)

Species Account Citation: AmphibiaWeb 2009 Gephyromantis zavona <> University of California, Berkeley, CA, USA. Accessed Jul 21, 2024.

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Citation: AmphibiaWeb. 2024. <> University of California, Berkeley, CA, USA. Accessed 21 Jul 2024.

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