Taxonomy

Plerandra reginae (W.Richards) Lowry, G.M.Plunkett & Frodin
endemique
UICN

Red List Status -

Least Concern (LC) , assessed in 11/02/2015

Plerandra reginae is an endemic tree of New Caledonia restricted on the southern half of Grande Terre from Prony to Canala.With an extent of occurrence (EOO) of 3,961 km², an area of occupancy (AOO) of 315 km², and 20 locations, some of which occur within a protected area (Parc de la Rivière Bleue, Réserve naturelle de la Vallée de la Thy, Réserve naturelle du Mont Humboldt, Réserve naturelle de la forêt de Saille, Réserve naturelle du Pic Ningua, Réserve naturelle du Massif du Kouakoué), Plerandra reginae is assigned a status of Least Concern (LC)

Geographical area


Plerandra reginae is an endemic tree of New Caledonia restricted to the southern half of Grande Terre from Prony to Canala.

Population


Population size is unknown.

Habitat


Plerandra reginae is found in dense humid forest at an altitudinal range of 100-1200 m.

Threats


While mining activities heavily impact the vegetation on ultramafic soils, most of the subpopulations of this species are not situated on mining concessions. Some stations however can be impacted by mining activities (Tontouta, Prony, Camp des Sapins, around Pic Ningua).An important threat to biodiversity in New Caledonia comes from past, present and future mining activities. New Caledonia contains 20-30% of the world’s nickel resources. Intense mining activities since the late 19th century generated soil erosion (1.2% of bare ground mapped by SPOT5 in 2007). Based on the distribution of metal-rich soils and site accessibility, these threats are predictable and planned (rise in nickel production from 60,000 to 200,000 tonnes per year between 2013 and 2015). The massif du Sud (from Yaté to Thio) is intensively mined.

Conservation


Plerandra reginae is not protected by legislation but it occurs in some protected areas (Parc de la Rivière Bleue, Réserve naturelle de la Vallée de la Thy, Réserve naturelle du Mont Humboldt, Réserve naturelle de la forêt de Saille, Réserve naturelle du Pic Ningua, Réserve naturelle du Massif du Kouakoué).Dense humid forests are a patrimonial ecosystem protected by the Code de l'Environnement of Province Sud.

Bibliography


Lowry, P. P. II; G. M. Plunkett; D. G. Frodin; C. Rodrigues Vaz; M. Gostel and A. N. Nicolas 2016. Revision of Plerandra A. Gray (Araliaceae). III. A taxonomic treatment of Plerandra subg. Dizygotheca..

Lowry, P. P. II; G. M. Plunkett and D. G. Frodin 2013. Revision of Plerandra A. Gray (Araliaceae). I. A synopsis of the genus with an expanded circumscription and a new infrageneric classification. Brittonia(65) , p.42-61.

Experts


Assessor(s): Tanguy, V.

Reviewer(s): Schatz, G.

Contributor(s): Gailhbaud, P., Garnier, D., Birnbaum, P., Lowry, P., Fogliani, B., Villegente, J.


Geographical distribution