Taxonomy

Polyscias taomensis Lowry & G.M.Plunkett, ined.
endemique
protegee
UICN

Synonyms

Tieghemopanax taomensis Lowry, in herb.

Red List Status -

Critically Endangered (CR) , assessed in 09/12/2016

Protected species -

in Northern Province , in Northern Province

Polyscias taomensis is an endemic shrub found in the north-west of Grande Terre in New Caledonia. This species is known from a single massif (Taom). It is found in altitudinal shrubland on ultramafic substrate. Main threats are recurrent bushfires. Its extent of occurrence (EOO) and area of occupancy (AOO) are both estimated to be of 8 km² while the number of locations is estimated to be 1. Polyscias taomensis is therefore assessed as Critically Endangered (CR) with criteria B1ab(ii,iii,v)+2ab(ii,iii,v) with a continuing decline of AOO, habitat quality and number of mature individuals.

Geographical area


Polyscias taomensis is an endemic shrub found in the north-west of Grande Terre in New Caledonia. This species is known from a single massif (Taom).

Population


Population size is unknown.

Habitat


It is found in altitudinal shrubland (800-900 m asl) on ultramafic substrate.

Threats


Main threats are recurrent bushfires.

Conservation


This species is protected by legislation in province Nord but it does not occur in any protected area. It is recommended to carry prospections. As this species is threatened by bushfires, its stations must be included in the maps of Sécurité Civile.

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) , p.177-219.

Lowry P.P.L. and Plunkett G.M. 2018. A Taxonomic revision of Polyscias subg. Tieghemopanax.

Experts


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

Reviewer(s): Maura, J.

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


Geographical distribution