Taxonomy
Red List Status -
Endangered (EN) , assessed in 21/07/2016Protected species -
in Southern Province , in Northern Province
Geissois bradfordii is an endemic shrub/small tree known from one population in the south of Grande Terre in New Caledonia. This species is known from only one population in the Parc de la Rivière Bleue. It is found in humid forest on ultramafic substrate at an altitudinal range 150-200 m asl. Its area of occupancy (AOO) as its extent of occurrence (EOO) is 4 km². The main threat to this species is linked to the Rivière Bleue bankside degradation. However, good regeneration has been observed. An estimation of population highlights a small size of population (fewer than 250 mature individuals). Geissois bradfordii is considered Endangered (EN) using criteria D.
Geographical area
This species is restricted to one population on the banks of Rivière Bleue in southern Grande Terre.
Population
Population size is estimated fewer than 250 individuals.
Habitat
It is found in humid forest (undergrowth) on ultramafic substrate at an altitudinal range 150-200 m asl.
Threats
The main threat to this species is linked to the Rivière Bleue bankside degradation. However, good regeneration has been observed.
Conservation
Protected species by legislation in Province Nord but not in Province Sud, this species occurs in a protected area : Parc provincial de la Rivière Bleue. Population follow-up is suggested. It is recommended to carry ex-situ conservation actions (seeds banking) as it seems this species would be easy to grow in nurseries. Information should be passed on to the management team of the Parc de la Rivière Bleue.
Bibliography
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.
H. C. F. Hopkins, J. C. Bradford, B. Donovan, Y. Pillon, J. Munzinger, B. Fogliani 2015. Floral biology of the Cunoniaceae in New Caledonia and the role of insects, birds and geckos as potential pollinators.
Helen Fortune Hopkins, Yohan Pillon, Ruurd Hoogland 2015. Flore de la Nouvelle-Calédonie : Cunoniaceae.
Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.
Experts
Assessor(s): Pillon, Y., Bruy, D., Butin, J., Fleurot, D., Gâteblé, G., Hequet, V., Letocart, D., Letocart, I., Tanguy, V., Tiavouane, J., Tron, F.
Reviewer(s): Fogliani, B.
Contributor(s): Fortune-Hopkins, H., Couhia, J., Brinkert, M.
Facilitator(s): Maura, J., Tanguy, V.