Taxonomy

endemique
protegee
UICN

Red List Status -

Critically Endangered (CR) , assessed in 19/02/2016

Protected species -

in Southern Province , in Northern Province

Soulamea cardioptera is an endemic tree or shrub of New Caledonia, restricted to the east coast of Grande Terre. This species is known of a single population in Thio (Dothio). It is found in dense humid forest (creek edges) on an ultramafic substrate at an altitudinal range of 50-100 m asl. Past mining activities have contributed to the degradation of the habitat, especially to erosion. The habitat of Soulamea cardioptera is moreover degraded by bushfires. Population size is unknown. Its extent of occurrence (EOO) and area of occupancy (AOO) are both estimated to be of 8 km² with an estimation of one location. Soulamea cardioptera is therefore assessed as Critically Endangered (CR) with criteria B1ab(iii,v)+2ab(iii,v) with a continuing decline of habitat quality and mature individuals.

Geographical area


Soulamea cardioptera is an endemic tree or shrub restricted to the east coast of Grande Terre in New Caledonia. This species is known of a single population in Thio (Dothio).

Population


Population size is unknown.

Habitat


This species is found in dense humid forest (creek edges) on an ultramafic substrate at an altitudinal range 50-100 m asl.

Threats


Past mining activities (Thio Plateau and Dothio still under operation) have contributed to the degradation of the habitat, especially to erosion. The habitat of Soulamea cardioptera is moreover degraded by bushfires. New Caledonia contains 20-30% of the world’s nickel resources. Intense mining activities since the late 19th century have generated soil erosion (1.2% of bare ground mapped by SPOT5 in 2007). Based on the distribution of metal-rich soils and site accessibility, these threats are predictable and planned (rise in nickel production from 60,000 to 200,000 tonnes per year between 2013 and 2015). Uncontrolled fires sweep across lowlands of New Caledonia each year, especially during the dry season (an average of 20,000 ha of land is burnt each year, with dramatic peaks of 70,000 ha).

Conservation


Soulamea cardioptera is protected by the code de l'environnement of province Nord. It does not occur in any protected area. It is proposed to prospect the forest patches around the original localities. If individuals were to be found, emergency ex-situ and in-situ conservation actions should be implemented.

Bibliography


L'Huillier L.; Jaffré T. and Wulff A. 2010. Mines et Environnement en Nouvelle-Calédonie : les milieux sur substrats ultramafiques et leur restauration.

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.

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.

Experts


Assessor(s): Tanguy, V., Veillon, J., Bruy, D., Dubreuil, M., Dumontet, V., Fleurot, D., Garnier, D., Lagrange, A., Lannuzel, G.

Reviewer(s): Amice, R.

Contributor(s): Wulff, A.

Facilitator(s): Tanguy, V., Chanfreau, S.


Geographical distribution