Taxonomy

endemique
protegee
UICN

Red List Status -

Critically Endangered (CR) , assessed in 08/12/2016

Protected species -

in Northern Province , in Northern Province

Diospyros veillonii is an endemic tree of New Caledonia restricted to a single population in Païta. It is found in a patch of dry coastal forest at low altitude on volcano-sedimentary substrate. The main threats impacting this species come from urbanization and habitat degradation linked to invasive species (Rusa Deer, Rusa timorensis) and uncontrolled bushfires. This species is only known from a single population estimated to be fewer than 50 mature individuals. Its area of occupancy (AOO) and extent of occurrence (EOO) being both estimated to 4 km². Diospyros veillonii is considered Critically Endangered (CR) according to criteria B1ab(ii,iii,v)+2ab(ii,iii,v), C2a(i,ii); D with an estimation of one location and an estimated continuous decline of AOO, habitat quality and number of mature individuals.

Geographical area


Diospyros veillonii is an endemic tree of New Caledonia restricted to a single population in Païta in Gadji. It is known from a patch of 21 ha of degraded dry forest located on a private land except for the "50 géometric steps" belonging to the Province's public maritim domain.

Population


Population size is estimated to be fewer than 50 mature trees.

Habitat


It is found in a patch of dry coastal forest at low altitude on volcano-sedimentary substrate.

Threats


The main threats impacting this species come from urbanization and habitat degradation linked to invasive species (Rusa rusa deer (Rusa timorensis)) and uncontrolled bushfires. The presence of this species on a very small private piece of forest makes it difficult to protect. The population has already been dramatically reduced by the opening of a bulldozer-constructed trail that crosses the population and has felled several of these trees in 2005. The land, which currently is empty, may soon become a permanent residence. The owner has been informed of the presence of this rare species on his land and he seems willing to take some care of it. Still the conservation of D. veillonii in the wild is entirely dependant on the land-owner. The site holds a population of Rusa rusa deer (Rusa timorensis).

Conservation


This species is protected in province Nord and province Sud. It does not occur in any protected area. This species is cultivated in a few private gardens. Severely threatened, this species would benefit from emergency conservation actions : ex-situ conservation (seeds banking, nurseries) and in-situ (workin with the landlord to protect the natural population, Rusa deer control...). As this species is threatened by bushfires, its stations must be included in the maps of Sécurité Civile.

Bibliography


White F.; Vink W. 1993. Flore de la Nouvelle-Calédonie et dépendances. Volume 19 : Ebenacaeae-Winteraceae.

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.

Munzinger J., Morat Ph., Jaffré T., Gâteblé G., Pillon Y., Tronchet F., Veillon J.-M. and M. Chalopin 2016. FLORICAL: Checklist of the vascular indigenous flora of New Caledonia. vers. 22.IV.2016.

Experts


Assessor(s): Schatz, G., Amice, R., Bruy, D., Butin, J., Cazé, H., Dumontet, V., Fleurot, D., Garnier, D., Héquet, V., Lowry, P., Suprin, B., Tanguy, V., Vandrot, H., Veillon, J.

Reviewer(s): Maura, J.

Facilitator(s): Tanguy, V., Warimavute, G.


Geographical distribution