Taxonomy

Psychotria neodouarrei Barrabé & A.Martini
endemique
UICN

Red List Status -

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

Psychotria neodouarrei is an endemic shrub of New Caledonia, known only in Bélep (Iles Pott et Art). It occurs in shrubland on ultramafic substrate at an altitudinal range 10-60 m asl. Main identified threat is linked to habitat damaging by uncontrolled bushfires. Its area of occupancy (AOO) and extent of occurrence (EOO) being both estimated to 8 km², while the number of locations are estimated to be two. Psychotria neodouarrei 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 neodouarrei is an endemic shrub of New Caledonia, known only in Bélep (Iles Pott et Art).

Population


It is known from two sub-populations: Ile Pott et Ile Art.

Habitat


It occurs in shrubland on ultramafic substrate at an altitudinal range 10-60 m asl.

Threats


Main identified threat is linked to habitat damaging by uncontrolled bushfires. Uncontrolled bushfires sweep across New Caledonia each year, especially during the dry season (an average of 20,000 ha of land is burnt each year, with dramatic peaks of 70,000 ha). In 2016, a fire occured in Ile Art and burnt 1,060 ha of shrubland and forest.

Conservation


Psychotria neodouarrei is unprotected by legislation and it does not occur in any protected area. This species would benefit from ex-situ and in-situ emergency conservation actions. It is proposed to ensure the follow-up of known sub-populations, to preserve a viable population on delimited perimeters. It would be moreover advised to realize multiplication tests in order to assist future planting operations. It is recommended to inform the DSCGR (emergency services) on the presence of the species in the concerned areas. Prospection in Ile Art and Ile pott are urgently needed.

Bibliography


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

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.

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.

Barrabé L. 2013. Systématique et Evolution du genre Psychotria (Rubiaceæ) en Nouvelle-Calédonie.

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


Geographical distribution