Taxonomy
Synonyms
Pittosporum paniculatum var. odoratissimum Baker f.Red List Status -
Near Threatened (NT) , assessed in 23/07/2015
Pittosporum pronyense is an endemic shrub of New Caledonia, quite common in southern Grande Terre and found along the east coast until Kouaoua area. Mostly occurring in dense humid forest on ultramafic substrate, P. pronyense is sometimes observed in remnant forest and shrubland. Its area of occupancy and extent of occurrence cover respectively 272 and 4012 km² corresponding to around 30 sub-populations. Among threats linked to projected continuous decline of habitat are : mining activities, bushfires but also invasive species such as rusa deer (Rusa timorensis) and feral pigs. Size of mature individuals population is not precisely known, but according to different field surveys, it is estimated a population of about 10,000 individuals. Regarding criteria C, P. pronyense qualifies as Near Threatened (NT) close to (VU) C2a(i).
Geographical area
P. pronyense is an endemic shrub of New Caledonia, quite common in southern Grande Terre and found along the east coast until Kouaoua area.
Population
Population size of mature individuals is not precisely known, based on information from experts, it is estimated that the population is close to 10,000 mature individuals.
Habitat
Mostly occurring in dense humid forest on ultramafic substrate, P. pronyense is sometimes observed in remnant forest and shrubland.
Threats
Despite a large distribution area, P. pronyense could in the long term be impacted by mining activities, bushfire, as well as invasive animal species such as Rusa rusa deer (Rusa timorensis) and wild pigs.
Conservation
P. pronyense is not protected by any legislation but remains quite protected by occurring in numerous protected areas, namely : la réserve naturelle du Massif du Kouakoué, la réserve intégrale de la Montagne des Sources, la réserve naturelle du Mont Mou, le Parc Provincial de la Rivière Bleue, la réserve naturelle de la Forêt Cachée, la réserve naturelle de la forêt de Saille, la réserve naturelle de la Haute Dumbéa, la réserve naturelle de la Vallée de la Thy, la réserve naturelle du barrage de Yaté, la réserve naturelle du Pic du Pin, la réserve naturelle des Chutes de la Madeleine and la réserve naturelle de la Forêt Nord.
Bibliography
Gomez C.; Mangeas M.; Curt T.; Ibanez T.; Munzinger J.; Dumas P.; Jérémy A.; Despinoy M. and Hély C. 2014. Wildfire risk for main vegetation units in a biodiversity hotspot: modeling approach in New Caledonia, South Pacific. Ecology and Evolution(5) , p.377-390.
Hély-Alleaume 2012. INC : Incendies et biodiversité des éco-systèmes en Nouvelle-Calédonie.
L'Huillier L.; Jaffré T. and Wulff A. 2010. Mines et Environnement en Nouvelle-Calédonie : les milieux sur substrats ultramafiques et leur restauration.
Tirel, C. & Veillon J.-M. 2002. Flore de la Nouvelle-Calédonie et dépendances. Volume 24 : Pittosporaceae.
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. 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.
Experts
Assessor(s): Gemmill, C., Veillon, J., Amice, R., Cazé, H., Dumontet, V., Fleurot, D., Garnier, D., Gâteblé, G., Maggia, L.
Reviewer(s): Tanguy, V.
Facilitator(s): Chanfreau, S.