Taxonomy

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

Synonyms

Phyllanthus pinjenensis M.Schmid

Red List Status -

Endangered (EN) , assessed in 20/08/2020

Phyllanthus pinjenensis is a sub-shrub of approximatively 50 cm high, endemic of New Caledonia and restricted to the north west of Grande Terre, from Pinjen (Koné) to Mont Kaala. This species occurs in forest undergrowth and in maquis on ultramafic substrates at an altitude range of 20 to 800 m asl. The main identified threats are linked to habitat damage by uncontrolled bushfires and mining activities at Mont Kaala. Its extent of occurrence (EOO) and area of occupancy (AOO) are respectively estimated to be of 131 km² and 20 km² while the number of locations is estimated to be 3. Using criterion B and with the estimation of a continuous decline of all the concerned subcriteria, Phyllanthus pinjenensis is assessed as Endangered (EN) B1ab(i,ii,iii,v)+2ab(i,ii,iii,v).

Geographical area


Phyllanthus pinjenensis is endemic to New Caledonia and it is restricted to the north west of Grande Terre, from Pinjen (Koné) to Mont Kaala.

Population


Population size is unknown.

Habitat


Phyllanthus pinjenensis occurs in forest undergrowth and in maquis on ultramafic substrates at an altitude range of 20 to 800 m asl.

Threats


The main identified threats are linked to habitat damage by uncontrolled bushfires and mining activities at Mont Kaala.

Conservation


Phyllanthus genus is protected by legislation in Province Nord. None of the subpopulations occur within a protected area. This species would benefit from in situ and ex situ emergency conservation actions. It is recommended to inform the DSCGR (emergency services), responsible for the coordination of the firefighting effort on the presence of the species in the concerned areas. It is moreover suggested to realise field surveys at Koné region to better estimate its distribution range and population size.

Bibliography


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.

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

McPherson, G.; Schmid, M. 1991. Flore de la Nouvelle-Calédonie et dépendances. Volume 17 : Euphorbiaceae II Phyllanthaceae.

Experts


Assessor(s): Amice, R., Barrière, R., Butin, J., Cazé, H., Dumontet, V., Fleurot, D., Garnier, D., Gâteblé, G., Héquet, V., Laudereau, C., Vandrot, H., Veillon, J.

Reviewer(s): Lannuzel, G.

Facilitator(s): Meyer, S., Warimavute, G.


Geographical distribution