Taxonomy

endemique
UICN

Synonyms

Phyllanthus mouensis M.Schmid

Red List Status -

Vulnerable (VU) , assessed in 20/08/2020

Phyllanthus mouensis is a shrub of 0.5-2 m high, endemic of New Caledonia and restricted to the south of Grande Terre, from Dumbéa to Tontouta. This species occurs in maquis or undergrowth forests on ultramafic substrates up to 1,200 m asl. The main identified threats are linked to habitat damage by uncontrolled bushfires and indirectly mining activities (road constructions, prospection for minerals in the area) at Tomo and Vulcain. Its extent of occurrence (EOO) and area of occupancy (AOO) are respectively estimated to be of 220 km² and 56 km² while the number of locations is estimated to be 8. Using criterion B and with the estimation of a continuous decline of its habitat quality, AOO and number of mature individuals, Phyllanthus mouensis is assessed as Vulnerable (VU) B1ab(ii,iii,v)+2ab(ii,iii,v).

Geographical area


Phyllanthus mouensis is endemic of New Caledonia where it is restricted to the south of Grande Terre, from Dumbéa to Tontouta.

Population


Population size is unknown.

Habitat


Phyllanthus mouensis occurs in maquis or undergrowth forests on ultramafic substrates up to 1,200 m asl.

Threats


The main identified threats are linked to habitat damage by uncontrolled bushfires and indirectly mining activities (road constructions, prospection for minerals in the area) at Tomo and Vulcain.

Conservation


Phyllanthus mouensis is protected by legislation in Province Nord and it does occur in one protected areas : Mont Mou. This species would benefit from in situ and ex situ conservation actions. It is recommended to information the DSCGR (government department overseeing firefighting actions) on the presence of the species in the concerned areas in order to ensure the persistence of the known population.

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): Warimavute, G., Meyer, S.


Geographical distribution