Taxonomy

endemique
protegee
UICN

Common name :

Le Bavaya de haute altitude High Elevation Bavayia

Red List Status -

Endangered (EN) , assessed in 11/12/2017

Protected species -

in Southern Province , in Northern Province

Description

Description:

A medium species of gecko growing to a body length of 75mm, with a long slender tail 119% the lengthy of the body; moderately broad toes; and a colour pattern on the body that is dark brown above with 4 darker transverse blotches on the dorsal surface between the fore and hindlimb.

 

Natural distribution:

Far northeast ranges of New Caledonia.

 

Distribution within Province Nord: Known only from two locations, Mt Panié and Mt Ignambi on the Panié Range.

 

Habitat:

High elevation humid forest.

 

Threats:

  • potentially high level of threat to populations in humid forest with high infestation levels of the introduced Little Red Fire Ant (Wasmannia auropunctata), resulting in a significant decline in abundance at the species.

  • moderate level of threat to the humid forest edge habitat on the western slopes from firing of adjacent savannah habitat, leading to loss and degradation of the forest edge.

  • potentially high level of threat from exotic pests such as rats and cats (predation of adults, young & eggs) in heavily affected areas.

 

Conservation Status:

Vulnerable.

 

Bavayia madjo is considered to represent a single continuous population along the range within some of the least disturbed and most pristine closed forest habitat in New Caledonia – its likely area of occupancy is <100 km2. Its’ small distribution, in combination with several moderate to high levels of threat indicate Bavayia madjo is at risk, and satisfies the criteria for the species to be categorised as Vulnerable.

 

Department of Herpetology, Australian Museum, 6 College Street, Sydney 2000, New South Wales, Australia


Paniegekko madjo is listed as Endangered because it has a restricted distribution and there is continuing decline in the quality of its habitat with an estimation of two locations. It, however, occurs in a protected area and it may have a larger suitable habitat.

Geographical area


Paniegekko madjo is endemic to Province Nord, New Caledonia. It is known only from the Panié massif in northeastern Grande Terre. This species has been recorded at just two localities, Mt Ignambi and Mt Panié, but it is expected to be distributed along the massif between these two sites as the habitat is continuous. It occurs at elevations above 850 m. The extent of occurrence and the area of occupancy are estimated to be 8 km2 from the actual data (expected to be more but below the threshold for Endangered).

Population


There is no information on present population density or trends for this species.

Habitat


This species inhabits closed montane forest. It is nocturnal and presumed to be arboreal, sheltering by day beneath loose bark and in tree or rock crevices. Recent reports highlight a true degradation of the vegetation on the summit of Mont Panié (Dayu Biik and Conservation International) with dieback (mortality or crown decline) of several woody species.

Threats


The main threat to this species is the continued predation by rodents (Thibault 2017) which are common through the massif. Other threat is the habitat loss and degradation from wildfires and the degradations from introduced ungulates (pigs essentially). The predation pressure from feral cats (Palmas 2017) may also cause a substantial threat.

Conservation


Protected in Province Nord under Code de l'environnement de la Province Nord (Délibération No. 306-2008/APN, 24 October 2008) and in Province Sud under Code de l'environnement de la Province Sud (Délibération No. 25-2009/APS, 20 March 2009).  This species is present in the Réserve de Nature Sauvage du Mt Panié. No conservation management is currently being undertaken. This species has not been observed since 1998. New surveys are recommended.

Bibliography


Palmas, P., Jourdan, H., Rigault, F., Debar, L., De Meringo, H., Bourguet, E., Mathivet, M., Lee, M., Adjouhgniope, R., Papillon, Y. and Bonnaud, E. 2017. Feral cats threaten the outstanding endemic fauna of the New Caledonia biodiversity hotspot. Biological Conservation(214) , p.250-259.

Bauer, A.M., Jones, J.P.G., Sadlier, R.A. 2000. A new high-elevation Bavayia (Reptilia: Squamata: Diplodactylidae) from northeastern New Caledonia. Pacific Science(54) , p.63–69.

Uetz, P. (ed.) 2017. The Reptile Database.

IUCN 2021. The IUCN Red List of Threatened Species. Version 2021-2.

Bauer, A.M. and Sadlier, R.A. 2000. The Herpetofauna of New Caledonia.

Bauer, A.M., Jackman, T.R., Sadlier, R.A. and Whitaker, A.H. 2012. Revision of the giant geckos of New Caledonia (Reptilia: Diplodactylidae: Rhacodactylus). Zootaxa(3404) , p.1–52.

Thibault, M., Brescia, F., Vidal, E. and Jourdan, H. 2017. Invasive rodents, an overlooked threat for skinks in a tropical island hotspot of biodiversity. New Zealand Ecological Society(41) , p.74-83.

Experts


Assessor(s): Sadlier, R., Bauer, A., Jourdan, H., Astrongatt, S., Deuss, M., Duval, T., Bourguet, E., McCoy, S., Bouteiller, A., Lagrange, A.

Reviewer(s): Cox, N.

Contributor(s): Whitaker, A.

Facilitator(s): Lietar, J., Tanguy, V., Warimavute, G.


Geographical distribution