Taxonomy

Dendrophyllanthus kouaouaensis (Schmid) R.W.Bouman
endemique
UICN

Synonyms

Phyllanthus kouaouaensis M.Schmid

Red List Status -

Endangered (EN) , assessed in 27/10/2017

Phyllanthus kouaouaensis is endemic to New Caledonia, where it is restricted to the southern east coast of Grande Terre. This shrub is not common and is found in riverine vegetation or dense humid forest on ultramafic substrate up to 100 m asl. Known from four locations, its extent of occurrence (EOO) and area of occupancy (AOO) are 208 and 16 km², respectively. The main threat is posed by uncontrolled bushfires. Therefore, P. kouaouaensis is listed as Endangered (EN) under criteria B1ab(iii,v)+2ab(iii,v).

Geographical area


P. kouaouaensis is endemic to New Caledonia, where it is restricted to the southern east coast of Grande Terre, from Thio to Houaïlou.

Population


Population size is unknown.

Habitat


P. kouaouaensis occurs in riverine vegetation or dense humid forest on ultramafic substrate up to 100 m asl.

Threats


The main threat is posed by uncontrolled bushfires.

Conservation


P. kouaouaensis is protected by legislation in Province Nord, but does not occur in any protected areas. This species would benefit from ex situ and in situ emergency conservation actions. It is recommended to monitor and preserve known populations in delimited areas of the mining site, and to inform the local authority responsible for the coordination of the firefighting effort about the presence of the species in the concerned areas. It would also be advised to run multiplication tests in order to assist future planting operations. Finally, prospection at Cap Bocage, Nakéty, Kouaoua and Dothio is needed to better estimate the size of the population and understand potential threats.

Bibliography


Lannuzel, G.; Gâteblé, G.; Fogliani, B. 2017. Etude des Espèces Rares et Menacées des sites miniers de la SMT.

Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.

Morat, P.; Jaffré, T.; Tronchet, F.; Munzinger, J.; Pillon, Y.; Veillon, J.-M. and Chalopin, M. 2012. Le référentiel taxonomique Florical et les caractéristiques de la flore vasculaire indigène de la Nouvelle-Calédonie [The taxonomic database « FLORICAL » and characteristics of the indigenous flora of New Caledonia]. Adansonia sér 3(34) , p.177-219.

Experts


Assessor(s): Amice, R., Barrière, R., Butin, J., Fleurot, D., Lagrange, A., Lannuzel, G., Letocart, I., Suprin, B.

Reviewer(s): Veillon, J.

Contributor(s): Russ, L.

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


Geographical distribution