Taxonomy
Synonyms
Bikkia artensis (Montrouz.) GuillauminRed List Status -
Vulnerable (VU) , assessed in 21/04/2017
Thiollierea artensis is an endemic shrub restricted to the northern part of Grande Terre. This species occurs in shrubland on ultramafic soils at an altitudinal range of 100-900m asl. The main impacts identified come from ongoing mining activities and bushfires. The EOO and AOO, respectively, are calculated to be 1,889 km2 and 80 km2, and the species is known from 10 locations. Thiollierea artensis is assigned a status of Vulnerable VU: B1ab(i,ii,iii,iv,v)+B2ab(i,ii,iii,iv,v) with a continuing decline of all sub-criteria.
Geographical area
Thiollierea artensis is an endemic shrub restricted to the northern part of Grande Terre, from Babouillat to Boulinda, and Belep Islands (Ile Yandé).
Population
Population size is unknown. It is known from eleven subpopulations: Ile Yandé, Cap Tonnerre (Babouillat), Tiébaghi, Paagoumène-creek à Paul, Taom : Mt. Homédéboa, Tinip, Massif du Koniambo/Rivière Foachiamboué, Koniambo- vallée de la Pandanus, Plateau de Tia, Boulinda, and Massif Boulinda.
Habitat
Thiollierea artensis occurs in shrubland on ultramafic soils at an altitudinal range of 100-900 m asl.
Threats
Some subpopulations may be threatened by mining activities, e.g. Ouazangou, Koniambo, Tiebaghi, and some of the lower subpopulations may be threatened by bushfires (Ile Art, Yandé, Babouillat, Plateau de Tia, Boulinda).
Conservation
Unprotected by legislation, Thiollierea artensis does not occur in any protected area. This species would benefit from ex-situ and in-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.
Bibliography
Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.
Barrabé L., Mouly A., Lowry II P.P. & Muzinger J. 2011. Reinstatement of the endemic New Caledonian genus Thiollierea Montrouz. (Rubiaceae) necessitated by the polyphyly of Bikkia Reinw. as currently circumscribed. Adansonia(33) , p.115-134.
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., Butin, J., Fleurot, D., Garnier, D., Gâteblé, G., Goxe, J., Héquet, V., Lannuzel, G., Suprin, B., Veillon, J.
Reviewer(s): Cazé, H.
Contributor(s): Mouly, A.
Facilitator(s): Warimavute, G., Tanguy, V., Maura, J.