Taxonomy
Plerandra osyana subsp. toto
Red List Status -
Least Concern (LC) , assessed in 25/01/2015
Plerandra osyana subsp. toto is an endemic tree of New Caledonia restricted to the Chaîne Centrale from Nakada to Mont-Panié.With an extent of occurrence (EOO) of 4,307 km², an area of occupancy (AOO) of 171 km², and over 15 known subpopulations, some of which occur within a protected area (Réserve de nature sauvage du massif de l'Aoupinié, réserve de nature sauvage du Mont Panié and Parc des Grandes Fougères), Plerandra osyana subsp. toto is assigned a status of Least Concern (LC)
Geographical area
Plerandra osyana subsp. toto is an endemic tree of New Caledonia restricted to the Chaîne Centrale from Nakada to Mont-Panié.
Population
Population size is unknown.
Habitat
Plerandra osyana subsp. toto is found in dense humid forest on volcano-sedimentary substrate.
Threats
Uncontrolled fires sweep across lowlands of New Caledonia each year, especially during the dry season (an average of 20,000 ha of land is burnt each year, with dramatic peaks of 70,000 ha). They contribute to habitat fragmentation and slowly burn the edge of dense humid forest.Some stations of Plerandra osyana subsp. toto may be impacted by fire.
Conservation
Plearandra osyana subsp. toto occurs in protected areas (Réserve de nature sauvage du massif de l'Aoupinié, réserve de nature sauvage du Mont Panié and Parc des Grandes Fougères).Dense humid forests are a patrimonial ecosystem protected by the Code 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): Lowry, P., Veillon, J., Gâteblé, G., Amice, R., Tron, F., Letocart, D.