Taxonomy
Synonyms
Barrotia sphaerocephala Brongn. • Pandanus dasodes H. St. JohnRed List Status -
Vulnerable (VU) , assessed in 09/06/2017Protected species -
in Northern ProvincePandanus sphaerocephalus is an endemic shrub restricted to the south of Grande Terre in New Caledonia. This species is found in dense humid forest on ultramafic rocks at an altitude range 700-1,200 m asl. The main identified threat is linked to habitat damage by ongoing uncontrolled bushfires. Its extent of occurrence (EOO) and area of occupancy (AOO) are respectively estimated to 267 km² and 24 km² while the number of locations are estimated to be six. P. sphaerocephalus is therefore assessed as Vulnerable (VU) with criteria B1ab(iii,v)+2ab(iii,v) with a continuing decline of its habitat quality and number of mature individuals.
Geographical area
Pandanus sphaerocephalus is an endemic tree restricted to the south of Grande Terre in New Caledonia (Comboui, Dzumac, Ouinné).
Population
Population size is unknown.
Habitat
Pandanus sphaerocephalus is found in dense humid forest on ultramafic rocks at an altitude range 700-1,200 m asl.
Threats
The main identified threat is linked to habitat damage by ongoing uncontrolled bushfires.
Conservation
Pandanus sphaerocephalus is protected by legislation in province Nord but not in province Sud and it does not occur in any protected areas. It is recommended to carry further prospection in the other areas in the south Grande Terre, to monitor known population (population size).
Bibliography
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.
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.
Experts
Assessor(s): Amice, R., Barrabé, L., Cazé, H., Chambrey, C., Garnier, D., Héquet, V., Letocart, D., Letocart, I.
Reviewer(s): Callmander, M.
Facilitator(s): Tanguy, V., Maura, J., Warimavute, G.