Taxonomy

endemique
UICN

Synonyms

Phyllanthus favieri var. favieri M.Schmid

Red List Status -

Endangered (EN) , assessed in 25/06/2020

Phyllanthus favieri var. favieri is an endemic shrub of New Caledonia, restricted to two northern massifs of Grande Terre: Koniambo and Tchingou massifs. This subspecies occurs in maquis or in forests on ultramafic substrates at an altitude range of 650 and 900 m asl. The main identified threats are linked to habitat damage by ongoing mining activities at Koniambo and potentially by future mining activities at Tchingou. Its extent of occurrence (EOO) and area of occupancy (AOO) are respectively estimated to be of 58 km² and 28 km² while the number of locations is estimated to be 2. Using criterion B and with the estimation of a continuous decline of all the concerned subcriteria, Phyllanthus favieri var. favieri is assessed as Endangered (EN) B1ab(i,ii,iii,v)+2ab(i,ii,iii,v).

Geographical area


Phyllanthus favieri var. favieri is endemic to New Caledonia where it is restricted to two northern massifs of Grande Terre: Koniambo and Tchingou.

Population


Population size is unknown.

Habitat


Phyllanthus favieri var. favieri occurs in maquis or in forests on ultramafic substrates at an altitude range of 650 and 900 m asl.

Threats


The main identified threats are linked to habitat damage by ongoing mining activities at Koniambo and potentially by future mining activities at Tchingou.

Conservation


Phyllanthus genus is protected by legislation in Province Nord. Phyllanthus favieri var. favieri does not occur in any protected area. Ex situ and in situ conservation efforts are recommended, in particular: monitoring of known subpopulations and the preservation of a viable population within delimited perimeters. It would be moreover advised to preserve patches of humid forest within delimited perimeters where this species is known.

Bibliography


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

Munzinger J., Morat Ph., Jaffré T., Gâteblé G., Pillon Y., Rouhan G., Bruy, D., Veillon J.-M., & M. Chalopin 2020. FLORICAL: Checklist of the vascular indigenous flora of New Caledonia [continuously updated].

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

Experts


Assessor(s): Amice, R., Bruy, D., Butin, J., Cazé, H., Fleurot, D., Héquet, V., Lannuzel, G., Laudereau, C., Lagrange, A., Veillon, J., Garnier, D., Dumontet, V., Goxe, J., McCoy, S., Gâteblé, G.

Reviewer(s): Warimavute, G.

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


Geographical distribution