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Marmorosphax kaala 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Reptilia Squamata Scincidae

Scientific Name: Marmorosphax kaala
Species Authority: Sadlier, Smith, Bauer & Whitaker, 2009

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(i,ii,iii)+2ab(i,ii,iii) ver 3.1
Year Published: 2011
Date Assessed: 2010-09-09
Assessor(s): Whitaker, A.H. & Sadlier, R.A.
Reviewer(s): Tognelli, M. & Cox, N.A.
Justification:
Marmorosphax kaala is listed as Critically Endangered because it has a very restricted distribution, it is known from only a single location under and there is continuing decline in the extent and quality of its habitat due to ongoing threat from mining.

Geographic Range [top]

Range Description:This species is endemic to Province Nord, New Caledonia. It is known only from two sites in one location on the summit of the ultramafic massif Kaala, on the northern west coast of Grande Terre. It occurs at elevations between 300 and 900 m. The extent of occurrence is approximately 18 km² (calculated from polygon map) but expected to occur more widely on the Kaala massif. The area of occupancy is estimated to be <2 km².

 

Countries occurrence:
Native:
New Caledonia
Additional data:
Estimated area of occupancy (AOO) - km2:2Continuing decline in area of occupancy (AOO):Yes
Estimated extent of occurrence (EOO) - km2:18
Continuing decline in extent of occurrence (EOO):Yes
Number of Locations:1
Lower elevation limit (metres):300
Upper elevation limit (metres):900
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:There is no information on population size and trends for Marmorosphax kaala. It is presumed to have suffered a substantial reduction population size and extent resulting from past destruction of its montane forest habitat by mining activities and from recurrent wildfires in the adjacent maquis shrublands.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species inhabits mid-elevation closed forest and montane forest. It is diurno-nocturnal, cryptozoic and terrestrial. It shelters beneath logs, rocks and deep leaf litter, and forages in cover.
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes

Threats [top]

Major Threat(s): The greatest threat to this species is from further habitat destruction leading to a reduction in the area of occupancy. Large areas of the Kaala massif have been affected by mining the industry there is expanding at both mid- and high elevation. The remaining forest areas are also at risk to peripheral damage and reduction in extent from the recurrent wildfires in the adjacent maquis shrubland. Introduced mammals (rodents, cats and pigs) are a potential predation risk and high-density populations of introduced ungulates (deer and pigs) threaten habitat quality, particularly through damaging the litter layer.

Conservation Actions [top]

Conservation Actions: This species is 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). It is not present in any reserves and no conservation management is currently being undertaken.

Citation: Whitaker, A.H. & Sadlier, R.A. 2011. Marmorosphax kaala. The IUCN Red List of Threatened Species 2011: e.T176194A7195353. . Downloaded on 26 March 2017.
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