Taxonomy

endemique
protegee
UICN

Red List Status -

Critically Endangered (CR) , assessed in 10/05/2016

Protected species -

in Southern Province

Pycnandra confusa is an endemic tree of New Caledonia only known from the Kuébini entrance. It is found in low humid forest on ultramafic substrate. The main identified threats are linked to habitat damage by uncontrolled bushfires, wood harvesting and the impact on water regimes as a result of the water use. These threats are likely to be causing a continuous decline in the quality of habitat and number of mature individuals. Its extent of occurrence (EOO) and area of occupancy (AOO) are estimated to be 4 km² while the species is known from a single location. Observations report a total population size fewer than 50 mature individuals. Pycnandra confusa is therefore assessed as Critically Endangered (CR) B1ab(iii,v)+2ab(iii,v); C2a(i,ii); D

Geographical area


Pycnandra confusa is an endemic tree up to 8m tall only known from Kuébini entrance.

Population


This species is known from a single population. It is reported less than fifty mature individuals.

Habitat


Pycnandra confusa occurs in low humid forest on ultramafic substrate.

Threats


Main identified threats are linked to habitat damage by uncontrolled bushfires,wood harvesting and impact on the water regimes as a result of the water use. Uncontrolled bushfires sweep across New Caledonia each year, especially during the dry season (an average of 20,000 ha of land is burnt each year, with dramatic peaks of 70,000 ha). Kuébini's forest has been strongly damaged by fires in the past and is still under threat from repeated fires. Illegal logging is also a threat since several logged individuals of the protected species Tristaniopsis reticulata (VU) has been observed.

Conservation


Unprotected by legislation, Pycnandra confusa does not occur in any protected area. Ex-situ and in-situ conservation efforts are urgently needed, in particular : ensuring the follow-up of the only known sub-population and preserving it on delimited perimeters. It is also recommended to prospect Kuébini entrance.

Bibliography


Swenson U. and Muzinger J. 2016. Five new species and a systematic synopsis of Pycnandra (Sapotaceae), the largest endemic genus in New Caledonia. Australian Systematic Botany(29) , p.1-40.

Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.

Swenson U. and Muzinger J. 2010. Taxonomic revision of Pycnandra subgenus Trouettia (Sapotaceae), with six new species from New Caledonia. Australian Systematic Botany(23) , p.333-370.

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): Cazé, H., Garnier, D., Goxe, J., Héquet, V., McCoy, S.

Reviewer(s): Gâteblé, G.

Contributor(s): Munzinger, J., Swenson, U.

Facilitator(s): Maura, J., Bernard-Musmann, M.


Geographical distribution