Taxonomy
Synonyms
Dubouzetia leionema SpragueRed List Status -
Near Threatened (NT) , assessed in 02/03/2018
Dubouzetia caudiculata is an endemic shrub from New Caledonia, where it is present on the ultramafic massifs in the northwest of Grande Terre. It occurs in shrubland, forest edges and forests on ultramafic soil from 20 to 900 m asl. Known from a dozen locations, its extent of occurrence (EOO) and area of occupancy (AOO) are 2,467 and 120 km², respectively. The main threat is posed by bushfires, mining activities and invasive species (rusa deer, Rusa timorensis). Therefore, D. caudiculata is listed as Near Threatened (NT), close to VU under criteria B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v).
Geographical area
D. caudiculata is endemic to New Caledonia, where it is present on the ultramafic massifs in the northwest of Grande Terre, from Mé Maoya (Poya) to Tiébaghi (Koumac).
Population
Population size is unknown.
Habitat
D. caudiculata occurs in shrubland ('maquis' vegetation), forest edges and forests on ultramafic soil from 20 to 900 m asl.
Threats
The main threats are bushfires, mining activities at Tiébaghi, Kopéto, Etoile du Nord (SLN) and Ouazangou (SMNC), as well as invasive species (rusa deer, Rusa timorensis).
Conservation
This species is not protected by any legislation in New Caledonia and it does not occur in any protected areas. It would be interesting to preserve this species ex situ, since it is easy to grow and has good potential for ornament.
Bibliography
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.
Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.
Tirel, C. & Jérémie, J. 1982. Flore de la Nouvelle-Calédonie et dépendances. Volume 11 : Eléocarpacées, Monimiacées, Amborellacées, Athérospermatacées, Triméniacées, Chloranthacées.
Experts
Assessor(s): Amice, R., Bruy, D., Fleurot, D., Gâteblé, G., Garnier, D., Lannuzel, G., Mandaoué, L., Vandrot, H., Hequet, V.
Reviewer(s): Tanguy, V.
Facilitator(s): Warimavute, G., Barrabé, L., Meyer, S.