Arthropodium sp.nov. #2 is an endemic herb from New Caledonia. It is only known from Port Boisé in the south of Grande Terre. It occurs on serpentinite soil in quite open scrubland approximatively at 36 m asl. Its area of occurrence (EOO) and area of occupancy (AOO) are both estimated to be 4 km², while the species is known from a single location. The main identified threats are linked to habitat damage by bushfires, which allows us to project a continuous decline in the quality of habitat and number of mature individuals. Using criteria B, this new species of Arthropodium qualifies Critically Endangered (CR) under criteria B1ab(iii,v)+2ab(iii,v), with an estimated continuing decline of the concerned sub-criteria.

Geographical area

Arthropodium sp.nov. #2 is endemic to New Caledonia where it is only known from Port Boisé in the south of Grande Terre.

Population

The population size is not known.

Habitat

This species occurs on serpentinite soil in quite open shrubland approximatively at 36 m asl.

Threats

The main identified threats are linked to habitat damage by bushfires, which allows us to project a continuous decline in the quality of habitat and number of mature individuals.

Conservation

This species is not protected by legislation in New Caledonia and it does not occur in any protected area. It is recommended to inform the DSCGR (emergency services) on the presence of the species in the concerned areas. Searches in the southern region are needed in order to better estimate its population and threats.

Bibliography

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.

Munzinger J., Morat Ph., Jaffré T., Gâteblé G., Pillon Y., Rouhan G., Bruy, D., Veillon J.-M., & M. Chalopin 2020. FLORICAL: Checklist of the vascular indigenous flora of New Caledonia [continuously updated].

Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.

Experts

Assessor(s): Amice, R., Bruy, D., Cazé, H., Fleurot, D., Garnier, D., Héquet, V., Lagrange, A., Lannuzel, G., Laudereau, C., McCoy, S., Vandrot, H.

Reviewer(s): Pillon, Y.

Facilitator(s): Warimavute, G., Fourdrain, A.