Taxonomy

Cyathopsis violaceospicata (Guillaumin) Quinn
endemique
protegee
UICN

Synonyms

Styphelia violaceospicata (Guillaumin) McPhersonLeucopogon violaceospicatus Guillaumin

Red List Status -

Critically Endangered (CR) , assessed in 10/09/2015

Protected species -

in Northern Province

Cyathopsis violaceospicata is a narrow endemic small tree found in the northwestern part of Grande Terre in New Caledonia. This species is known from 3 sub-populations (Kaala, Koniambo, Kouaoua). It is found in degraded shrubland an humid forest on ultramafic substrate at an altitudinal range 490-700 m asl. The main threat is presented by ongoing mining activities in Kaala (Ballande and SLN), Koniambo (KNS) and Kouaoua (NMC) areas. The twenty five year projection for mining operation indicate that all individuals may be affected. Cyathopsis violaceospicata is therefore considered as Critically Endangered (CR) with criteria A4c and at least 80% estimated reduction of population within 25 years.

Geographical area


Cyathopsis violaceospicata is a narrow endemic small tree found in the northwestern part of Grande Terre in New Caledonia. This species is known from 3 sub-populations (Kaala, Koniambo, Kouaoua).

Population


Population size is unknown. Field surveys emphasize mostly isolated plants found in crevice. Poor regeneration was observed.

Habitat


Cyathopsis violaceospicata is found in shrubland and humid forest on ultramafic substrate at an altitudinal range 490-700 m asl.

Threats


The main threat is presented by ongoing mining activities in Kaala (Ballande and SLN), Koniambo (KNS) and Kouaoua (NMC) areas. The twenty five year projection for mining operation indicate that all individuals may be affected. New Caledonia contains between 20 - 30% of the world’s nickel resources and has experienced intense mining activities since the late 19th century which has 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).

Conservation


Cyathopsis violaceospicata is protected by legislation in Province Nord, but does not occur in any protected area. It is reported that this species is difficult to cultivate. This species would benefit from ex-situ and in-situ emergency conservation actions. It is proposed to preserve a viable population on delimited perimeters on each mining areas. It would be moreover advised to realize multiplication tests in order to assist future planting operations and to prospect actively Kaala area where the species was observed in 2007 during an survey made by IRD (French Research Institute for Development).

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. The taxonomic database « FLORICAL » and characteristics of the indigenous flora of New Caledonia. Adansonia(334(2)) , p.177-219.

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.

Experts


Assessor(s): Tanguy, V., Veillon, J., Amice, R., Barrière, R., Fleurot, D., Gailhbaud, P., Garnier, D., Suprin, B.

Reviewer(s): Vandrot, H.

Contributor(s): Wulff, A.

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


Geographical distribution