Taxonomy

endemique
protegee
UICN

Synonyms

Psychotria colnettiana Guillaumin

Red List Status -

Endangered (EN) , assessed in 15/09/2016

Protected species -

in Southern Province

Psychotria gneissica is an endemic shrub, spread in Grande Terre from Ouégoa (Col d'Amoss) to Mont Panié in the north of New Caledonia. It occurs in dense humid forest on volcano-sedimentary substrate at an altitudinal range 900- 1,510 m asl. The main threats impacting this species comes from habitat degradation caused by invasive species (Sus domesticus). Its area of occupancy (AOO) and extent of occurrence (EOO) being estimated to 28 km² and 130 km², while the number of locations are estimated to be four. Psychotria gneissica is therefore assessed as Endangered (EN) with criteria B1ab(iii,v)+2ab(iii,v) with a continuing decline of habitat quality and number of individuals.

Geographical area


Psychotria gneissica is an endemic shrub, widespread in Grande Terre from Ouégoa (Col d'Amoss) to Mont Panié in the north of New Caledonia.

Population


Population size is unknown.

Habitat


Psychotria gneissica occurs in dense humid forest on volcano-sedimentary substrate at an altitudinal range 900- 1,510 m asl.

Threats


The main threats impacting this species comes from habitat degradation caused by invasive species (Sus domesticus).

Conservation


Psychotria gneissica is not protected by legislation but it occurs in one protected areas : Mont Panié . It is recommended to inform Dayu biik, local NGO in charge of managing Mont Panié area, the Conservatoire d'espaces naturels de Nouvelle-Calédonie (New Caledonia natural spaces conservatory), which coordinates the New caledonian Invasive Species Programme, on the situation of the species in the concerned areas.

Bibliography


Barrabé L, Maggia L, Pillon Y, Rigault F, Mouly A, Davis AP, Buerki S 2014. New Caledonian lineages of Psychotria (Rubiaceae) reveal different evolutionary histories and the largest documented plant radiation for the archipelago. Molecular Phylogenetics and Evolution(71) , p.15-35.

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

Barrabé L. 2013. Systématique et Evolution du genre Psychotria (Rubiaceæ) en 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): Barrabé, L., Amice, R., Bruy, D., Cazé, H., Dumontet, V., Fleurot, D., Garnier, D., Gâteblé, G., Hequet, V., Maura, J., McCoy, S., Suprin, B., Vandrot, H., Veillon, J.

Reviewer(s): Lannuzel, G., Tanguy, V.

Facilitator(s): Tanguy, V., Warimavute, G., Maura, J., Ramon, L.


Geographical distribution