Salaciopsis longistyla is an endemic shrub of New Caledonia restricted in the north east of Grande Terre. This species is known from four subpopulations. It is found in dense humid forest on volcano-sedimentary substrate, from 400 to 1,300 m asl. The main threats identified are fire, Rusa deer (Rusa timorensis) and feral pigs (Sus scrofa). Its extent of occurence (EOO) and area of occupancy (AOO) are estimated to 167 and 16 km², respectively, while its number of locations is equal to four. S. longistyla is therefore considered as Endangered (EN) B1ab(iii,v)+2ab(iii,v) with an estimated decline of the habitat quality and the number of mature individuals.

Geographical area

S. longistyla is endemic to New Caledonia where it is restricted in the north east of Grande Terre. It is known from four subpopulations (Ouenguip, Diahoué, Ignambi{zone} and Tonine).

Population

Population size is unknown.

Habitat

S. longistyla occurs in dense humid forest on volcano-sedimentary substrate, from 400 to 1,300 m asl.

Threats

The main threats identified are uncontrolled bushfires, Rusa deer (Rusa timorensis) and feral pigs (Sus scrofa).

Conservation

S. longistyla is not protected by legislation in New Caledonia and it does not occur in any protected area. This species should be included in the regional legislation for a better protection of the species. This species would benefit from ex situ and in situ emergency conservation actions and also awarness amongs the local population. It is proposed to ensure the follow-up of the only known sub-population. It is also recommended to inform the DSCGR (emergency services), responsible for the coordination of the firefighting effort, on the presence of the species in the concerned area. Plus prospections on other northeastern summits are needed are needed to confirm the presence of the species and to better estimated its population.

Bibliography

Morat, P. 1996. Flore de la Nouvelle-Calédonie et dépendances. Volume 20 : Celastraceae, Loranthaceae, Alseuocmiaceae, Paracryphiaceae, Tiliaceae.

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): Amice, R., Bruy, D., Butin, J., Cazé, H., Chambrey, C., Dumontet, V., Fleurot, D., Garnier, D., Gâteblé, G., Goxe, J., Hequet, V., Veillon, J.

Reviewer(s): Lannuzel, G.

Facilitator(s): Barrabé, L., Warimavute, G., Meyer, S.