Taxonomie
Statut liste rouge -
En danger (EN) , évaluée le 11/12/2017Espèce protégée -
en Province Sud , en Province NordDescription
Répartition
Sud de la Grande-Terre : Pourina, Rivière Bleue, potentiellement Côte Oubliée
Habitat
Forêt humide sur substrat ultramafique
Sigaloseps conditus is listed as Endangered (criteria B1ab(iii,v)+2ab(iii,v)) because it is restricted to three localities in south New Caledonia, with the extent of occurrence (EOO) being estimated at 35 km2 and the area of occupancy (AOO) at 20 km2. There is a continuing decline in the extent and quality of habitat and the number of mature individuals due to a variety of threats.
Aire géographique
Sigaloseps conditus is endemic to the Province Sud. It is known from two locations in the ranges of southern Grande Terre at the Pourina River and Rivière Bleue, and likely extends along the Côte Oubliée and its hinterland. The extent of occurrence is estimated at 35 km2 and the area of occupancy at 20 km2.
Population
There is no information on population size.
Habitat
This species occurs in humid forest on ultramafic substrate.
Menaces
Tha major threats to Sipaloseps conditus are habitat degradation from introduced pigs, predation pressure from feral cats (Palmas 2017) and the introduction of the invasive ant, Wasmannia auropunctata, which has a severe impact as it is known to decimate lizard populations (Jourdan et al. 2001, 2006).
Conservation
Espèce protégée règlementairement. Espèce présente dans 2 réserve(s) : Rivière bleue, Haute Yaté
Bibliographie
Jourdan, H., Sadlier, R.A. and Bauer, A.M. 2001. Little Fire Ant Invasion (Wasmannia auropunctata) as a threat to New Caledonian lizards: Evidences from a sclerophyll forest (Hymenoptera: Formicidae). Sociobiology(38) , p.283-301.
Sadlier, R.A, Bauer, Wood Jr., P.L., Smith, S.A., Whitaker, A.H., Jourdan, H. and Jackman, T.R. 2014. Localized endemism in the southern ultramafic bio-region of New Caledonia as evidenced by the lizards in the genus Sigaloseps (Reptilia: Scincidae), with descriptions of four new species. Memoires du Museum National d'Histoire Naturelle(206) , p.79-113.
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.
Sadlier, R.A, Bauer, Wood Jr., P.L., Smith, S.A., Whitaker, A.H., Jourdan, H. and Jackman, T.R. 2014. Localized endemism in the southern ultramafic bio-region of New Caledonia as evidenced by the lizards in the genus Sigaloseps (Reptilia: Scincidae), with descriptions of four new species. Memoires du Museum National d'Histoire Naturelle(206) , p.79-113.
IUCN 2021. The IUCN Red List of Threatened Species. Version 2021-2.
Uetz, P. (ed.) 2017. The Reptile Database.
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): Fleurot, D., Jumel, M., Cassan, J., Butin, J.
Facilitator(s): Lietar, J., Warimavute, G., Tanguy, V.