Taxonomy
Deltaria brachyblastophora
Red List Status -
Endangered (EN) , assessed in 27/10/2017Protected species -
in Southern Province , in Northern Province
Deltaria brachyblastophora is endemic to New Caledonia, restricted to the northwestern part of Grande Terre (Koumac region). It is found in shrubland and gallery forest on ultramafic substrate between 12 and 600 m asl. Known from three locations, its extent of occurrence (EOO) and area of occupancy (AOO) are both 40 km². The main threat is posed by uncontrolled bushfires. Therefore, D. brachyblastophora is listed as Endangered (EN) under criteria B1ab(iii,v)+2ab(iii,v).
Geographical area
D. brachyblastophora is endemic to New Caledonia, where it restricted to the Koumac region, in the northwest of Grande Terre.
Population
Total population size is unknown, but field observations indicate the species is locally abundant.
Habitat
D. brachyblastophora occurs in shrubland and gallery forest on ultramafic substrate between 12 and 600 m asl.
Threats
The main threat is posed by uncontrolled bushfires.
Conservation
D. brachyblastophora is protected by legislation in Province Nord, but does not occur in any protected areas. This species would benefit from ex situ and in situ emergency conservation actions. It is recommended to monitor and preserve known populations in delimited areas of the mining site, and to inform the local authority responsible for the coordination of the firefighting effort about the presence of the species in the concerned areas. It would also be advised to run multiplication tests in order to assist future planting operations.
Bibliography
Endemia.nc 2016. Faune et Flore de 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.
Lannuzel, G.; Gâteblé, G.; Fogliani, B. 2017. Etude des Espèces Rares et Menacées des sites miniers de la SMT.
Experts
Assessor(s): Amice, R., Barrière, R., Butin, J., Fleurot, D., Lagrange, A., Lannuzel, G., Letocart, I., Suprin, B.
Reviewer(s): Veillon, J.
Contributor(s): Russ, L.
Facilitator(s): Tanguy, V., Warimavute, G.