Baloghia brongniartii is an endemic shrub restricted to the east coast of Grande Terre in New Caledonia (from Yaté to Houaïlou). It is found in shrubland on ultramafic substrate at an altitudinal range of 35-500 m asl. On-going mining activities impact several subpopulations. Indeed, extraction projections on the coming 25 years will lead to the decline of populations, especially in Cap Bocage (Société Moinière de la Tontouta SMT), Kouaoua (SLN and NMC), Bogota (NMC) and Nakéty (SMT). The habitat of Baloghia brongniartii is moreover degraded by bushfires and the invasie species Rusa Deer (Rusa timorensis). Its extent of occurrence (EOO) and area of occupancy (AOO) are respectively estimated to be of 1,289 and 56 km² while the number of locations is estimated to be eleven. B. brongniartii is therefore assessed as Near Threatened (NT) close to VU B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v).

Geographical area

Baloghia brongniartii is an endemic shrub of New Caledonia, restricted to the east coast of Grande Terre (from Yaté to Houaïlou).

Population

Population size is unknown. Individuals are scattered though not rare.

Habitat

This species is found in shrubland on ultramafic substrate at an altitudinal range 35-500 m asl.

Threats

On-going mining activities impact several subpopulations. Indeed, extraction projections on the coming 25 years will lead to the decline of populations, especially in Cap Bocage (Société Minière de la Tontouta SMT), Kouaoua (SLN and NMC), Bogota (NMC) and Nakéty. The habitat of Baloghia brongniartii is moreover degraded by bushfires and the invasie species Rusa Deer (Rusa timorensis).

Conservation

This species is not protected by legislation. It occurs in one protected area : réserve naturelle du barrage de Yaté. It is recommended to prospect the Côte Oubliée, Yaté and Petchicara.

Bibliography

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.

Wulff AS, Hollingsworth PM, Ahrends A, Jaffré T, Veillon J-M, L’Huillier L, et al. 2013. Conservation Priorities in a Biodiversity Hotspot: Analysis of Narrow Endemic Plant Species in New Caledonia.

Endemia.nc 2016. Faune et Flore de 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.

Experts

Assessor(s): Amice, R., Bruy, D., Butin, J., Cazé, H., Chambrey, C., Dumontet, V., Fleurot, D., Garnier, D., Gâteblé, G., Goxe, J., Hequet, V., Veillon, J.

Reviewer(s): Lannuzel, G.

Facilitator(s): Meyer, S., Barrabé, L., Warimavute, G.