Taxonomy

endemique
protegee
UICN

Red List Status -

Endangered (EN) , assessed in 30/09/2016

Protected species -

in Northern Province , in Northern Province

Actinokentia huerlimannii is a solitary slender, subcanopy to emergent, endemic tree palm restricted to a limited area in the southeast of Grande Terre in New Caledonia, from Mt Nékando to Mois de Mai. It is found in dense humid forest or shrubby, ridge forest on ultramafic substrate at an altitudinal range 800-850 m asl. Field surveys indicate isolated populations without regeneration. Main identified threats are linked to habitat damage by wild pigs and seeds destruction by rats. Its area of occurrence (EOO) and area of occupancy (AOO) are respectively 168 km² and 16 km² while the number of locations is estimated to be four. A continuing decline has been estimated concerning habitat quality and therefore A.huerlimannii is considered Endangered (EN) according to criteria B1ab(iii)+2ab(iii).

Geographical area


Actinokentia huerlimannii is an endemic palm tree of New Caledonia, restricted in a limited area in the southeast of Grande Terre in New Caledonia (Mont Nékando, Kouakoué, Mont Ouin et Mois de Mai (west side)

Population


The population size is unknown but field surveys indicate the presence of isolated populations (around 5 or 6 matures in La Haute Ni) with no regenerations under the mature individuals. The number of subpopulation is estimated to four.

Habitat


Actnokentia huerlimannii is found in dense humid forest or shrubby, ridge forest on soils derived from ultramafic rocks at an altitudinal range 800-850 m asl.

Threats


Main identified threats are linked to habitat damage by wild pigs, consumption and destruction of seeds by rats.

Conservation


Actinokentia huerlimannii is protected by legislation in Province Nord and Province Sud and it occurs in three protected areas : Parc de la Rivière Bleue, Massif du Kouakoué, Mont Humboldt. Prospection at Mont Nekando, Haute Ni and Mois de Mai and listing of the species in the Convention on International Trade in Endangered Species (CITES) are recommended. This species would benefit from ex-situ and in-situ emergency conservation actions. It would be moreover advised to ensure the follow-up of the known populations and to control invasive species.

Bibliography


Pintaud, J.C. 2000. An introduction to the palms of New Caledonia.. Palms(44) , p.132-140.

Hodel, D. R., & Pintaud. 1998. The palms of New Caledonia / Les palmiers de Nouvelle-Calédonie..

Pintaud, J.-C., & Baker, W. J. 2008. A Revision of the Palm Genera (Arecaceae) of New Caledonia.. Kew bulletin(63) , p.61-73.

Pintaud, J.C. 1999. Phylogénie, biogéographie et écologie des palmiers de Nouvelle-Calédonie.

Experts


Assessor(s): Amice, R., Canel, J., Ugolini, D., Butin, J., Fleurot, D., Garnier, D., Garnier, D., Goxe, J., Henry, B., Lespes, A., Letocart, D., Letocart, I., Mercier, B., Tiavouane, J., Veillon, J., Warimavute, G.

Reviewer(s): Tanguy, V.

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


Geographical distribution