Taxonomy
Red List Status -
Data Deficient (DD) , assessed in 29/02/2016
Gea humboldtensis ined. is an endemic shrub/tree of New Caledonia. This species is insufficiently known and work is on-going for its taxonomic description. It is known of 3 sub-populations (Montagne des Sources, Haute-Ouinné, Prony). It is found in forest on ultramafic substrate at an altitudinal range of 300-1,000 m asl. Therefore, Gea humboldtensis ined. is assigned as Data Deficient (DD) for taxonomic reason. It should be re-assessed as soon as the description is available because it is presumed threatened.
Geographical area
Gea humboldtensis ined. is an endemic shrub/tree of New Caledonia. It is known of 3 sub-populations (Montagne des Sources, Haute-Ouinné, Prony).
Population
Population size is unknown.
Habitat
It is found in forest on ultramafic substrate at an altitudinal range of 300-1,000 m asl.
Threats
Gea humboldtensis ined. may be threatened by mining activities (Vale NC in Prony) and in the future hydro-electric works (Haute-Ouinné).
Conservation
Gea humboldtensis ined. is not legally protected. It occurs in one protected area : réserve naturelle de la Montagne des Sources. Taxonomy needs to be established so that extinction risk can be assessed.
Bibliography
L'Huillier L.; Jaffré T. and Wulff A. 2010. Mines et Environnement en Nouvelle-Calédonie : les milieux sur substrats ultramafiques et leur restauration.
Wulff AS, Hollingsworth PM, Ahrends A, Jaffré T, Veillon J-M, L’Huillier L, et al. 2013. Conservation Priorities in a Biodiversity Hotspot: Analysis of Narrow Endemic Plant Species in New Caledonia.
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.
Experts
Assessor(s): Tanguy, V., Veillon, J., Amice, R., Cazé, H., Chambrey, C., Dubreuil, M., Fleurot, D., Garnier, D., Lagrange, A., Lannuzel, G., Leborgne, T., Letocart, D., Letocart, I., McCoy, S., Villegente, J.
Reviewer(s): Maura, J.
Contributor(s): Wulff, A.
Facilitator(s): Tanguy, V.