Taxonomy
Red List Status -
Vulnerable (VU) , assessed in 08/09/2017
Oxera sp. nov. "papineaui" is a monocaulous small tree endemic to New Caledonia. It is known from three locations (Bouirou, Néaoua and Katrikoin/Kouaoua) in the center of Grande Terre. It is found in dense humid forest on volcano-sedimentary substrate between 530 and 600 m asl., and its area of occupancy (AOO) equals 16 km². Population size is unknown. Considering the potential impact of invasive species, mostly feral pigs (Sus scrofa) and rusa deer (Rusa timorensis russa), Oxera sp. nov. "papineaui" is listed as Vulnerable (VU) under criterion D2.
Geographical area
O. sp. nov. "papineaui" is endemic to New Caledonia, where it is known from three locations in the center of Grande Terre (Bouirou, Néaoua, Katrikoin/Kouaoua)
Population
Population size is unknown. Field observations indicate a locally abundant species with low regeneration.
Habitat
O. sp. nov. "papineaui" occurs in dense humid forest on volcano-sedimentary substrate between 530 and 600 m asl.
Threats
This species does not seem to be threatened at the moment, although invasive species, such as feral pigs (Sus scrofa) and Rusa deer (Rusa timorensis) are a potential threats.
Conservation
Oxera sp. nov. "papineaui" is not protected by any legislation in New Caledonia and it does not occur in any protected areas. It is recommended to monitor known populations and inform the local authority responsible for the coordination of the firefighting effort on the presence of the species in the concerned areas. Prospection at Boirou, Néaoua and Katrikoin-Kouaoua is also recommended to determine population size and better understand potential threats. Knowledge improvement on the species (multiplication tests) would also be needed for ex situ conservation.
Bibliography
Mabberley DJ, de Kok RPJ. 2004. Labiatae. In: Morat P,ed. Flore de la Nouvelle-Calédonie et dépendance.
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.
Gâteblé, G. 2016. Flore ornementale de Nouvelle-Calédonie.
Barrabé L, Karnadi-Abdelkader,G, Ounemoa,J,de Kok RPJ., Robert N, Gâteble,G. 2015. Recircumscription of Oxera (Lamiaceae: Ajugoideae) ta include Faradaya based on molecular and anatomical data. Botanical Journal of the Linnean Society(179) , p.693-711.
Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.
Experts
Assessor(s): Gâteblé, G., Barrabé, L., Fleurot, D., Amice, R., Cazé, H., Bruy, D., Héquet, V., Vandrot, H., Butin, J., Mandaoué, L., Haverkamp, C., Dumontet, V., Laudereau, C.
Reviewer(s): Meyer, S.
Facilitator(s): Tanguy, V., Warimavute, G.