Taxonomy

Hibbertia deplancheana Bureau ex Guillaumin
endemique
UICN

Red List Status -

Near Threatened (NT) , assessed in 27/04/2015

Hibbertia deplancheana is an endemic tree mainly spread on ultramafic mountains of north-west Grande Terre . Its area of extension stretches from Poya to Poum with one collect coming from Col d'Amoss and a second from vallée de Tontouta. H.deplancheana occurs in shrubland on ultramafic substrate (maquis minier) and on micaschist for the sample of Col d'Amoss at an altitudinal range 1-700 m asl (rocky slopes). Threats to Hibbertia deplancheana are likely to be linked to habitat degradation due to mining activities and fire. Population size reduction cannot be assessed because of a lack of data. Its area of occupancy and extent of occurrence are respectively 176 km2 and 3,295 km2. The number of locations, based on habitat degradation as the main threat, is about 15. A continuing decline of the quality of habitat is projected. Using criteria B, H. deplancheana does qualify for Near Threatened (NT) close to Vulnerable (VU) B1ab(iii)&2ab(iii).

Geographical area


Hibbertia deplancheana is an endemic tree mostly spread on ultramafic mountains of North-West Grande Terre . Its area of extension stretches from Poya to Poum with one collect coming from Col d'Amoss on the east coast.

Population


Population size is unknown but H. deplancheana is relatively common on west coast on ultramafic substrate.

Habitat


H.deplancheana occurs in shrubland on ultramafic substrate (maquis minier) and on micaschist for the sample of Col d'Amoss at an altitudinal range 1-700 m asl (rocky slopes).

Threats


Main threat identified is linked to habitat degradation and reduction due to mining activities and uncontrolled fires that sweep across New Caledonia. The resulting effects of mining activities namely erosion and urbanisation on the sector Voh-Koné-Pouembout and Koumac are not inconsiderable threat.

Conservation


H.deplancheana is not protected by legislation and does not occur in any protected area.

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.

Experts


Assessor(s): Veillon, J., Amice, R., Butin, J., Cazé, H., Garnier, D., Lannuzel, G., Leborgne, T., McCoy, S.

Reviewer(s): Tanguy, V.

Facilitator(s): Chanfreau, S.


Geographical distribution