Plant species microendemism and conservation of montane maquis in New Caledonia: two new species of Pancheria (Cunoniaceae) from the Roche Ouaïème

Bradford, Jason C.; Jaffré, Tanguy

doi:10.1023/b:bioc.0000047901.33761.3c

Cited by 32 publications

(14 citation statements)

References 18 publications

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“…In 2005, a severe fire in the close vicinity of one of the most tightly protected areas on New Caledonia (Montagne des Sources) provided a clear illustration of this problem and approximately 4000 ha of land were burnt. Thus the non-protected HPNE on volcano-sedimentary substrates like the Mont Colnett, Mont Ignambi [43], [54], [55], [56], the Roche Ouaième [57], and the Dogny plateau [56] which are not threatened by mining, are still of concern due to potential fire damage. On a positive note, the site with the highest diversity of NES (Mont Panié) is protected by the North province legislation and protected from fires to some extent by the lack of forestry roads and the extent of its evergreen forests.…”

Section: Discussionmentioning

confidence: 99%

Conservation Priorities in a Biodiversity Hotspot: Analysis of Narrow Endemic Plant Species in New Caledonia

Wulff¹,

et al. 2013

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New Caledonia is a global biodiversity hotspot facing extreme environmental degradation. Given the urgent need for conservation prioritisation, we have made a first-pass quantitative assessment of the distribution of Narrow Endemic Species (NES) in the flora to identify species and sites that are potentially important for conservation action. We assessed the distributional status of all angiosperm and gymnosperm species using data from taxonomic descriptions and herbarium samples. We characterised species as being NES if they occurred in 3 or fewer locations. In total, 635 of the 2930 assessed species were classed as NES, of which only 150 have been subjected to the IUCN conservation assessment. As the distributional patterns of un-assessed species from one or two locations correspond well with assessed species which have been classified as Critically Endangered or Endangered respectively, we suggest that our distributional data can be used to prioritise species for IUCN assessment. We also used the distributional data to produce a map of “Hotspots of Plant Narrow Endemism” (HPNE). Combined, we used these data to evaluate the coincidence of NES with mining activities (a major source of threat on New Caledonia) and also areas of conservation protection. This is to identify species and locations in most urgent need of further conservation assessment and subsequent action. Finally, we grouped the NES based on the environments they occurred in and modelled the habitat distribution of these groups with a Maximum Entropy Species Distribution Model (MaxEnt). The NES were separable into three different groups based primarily on geological differences. The distribution of the habitat types for each group coincide partially with the HPNE described above and also indicates some areas which have high habitat suitability but few recorded NES. Some of these areas may represent under-sampled hotspots of narrow endemism and are priorities for further field work.

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Section: Discussionmentioning

confidence: 99%

Conservation Priorities in a Biodiversity Hotspot: Analysis of Narrow Endemic Plant Species in New Caledonia

Wulff¹,

et al. 2013

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“…This approach was applied by Jaffré et al. (1998a), who considered that all plants endemic to high‐altitude maquis should be regarded as ‘Endangered’, and was adopted more recently by Bradford & Jaffré (2004), who argued for their assessment as ‘Critically Endangered’.…”

Section: Discussionmentioning

confidence: 99%

A second species in the endemic New Caledonian genusGastrolepis(Stemonuraceae) and its implications for the conservation status of high-altitude maquis vegetation: coherent application of the IUCN Red List criteria is urgently needed in New Caledonia

Munzinger

McPherson

Lowry

2008

Botanical Journal of the Linnean Society

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A new species in the previously monotypic, endemic New Caledonian genus Gastrolepis (Stemonuraceae) is described. Gastrolepis alticola differs from G. austrocaledonica by its shorter and thicker petioles, strongly coriaceous leaves with revolute margins, shorter inflorescences, and pubescent corollas. The new species is further distinguished by its ecology, occurring only in high-altitude maquis on two massifs in southern New Caledonia, Mt. Kouakoué and the Montagne des Sources. Gastrolepis alticola is assigned a preliminary conservation status of 'Endangered' using the World Conservation Union (IUCN) Red List criteria. Comparison of the IUCN threat status for the 19 species endemic to this distinctive, restricted vegetation type reveals a striking lack of consistency and underscores the need for a reassessment of the entire New Caledonian flora.

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“…Malgré des travaux antérieurs ciblant spécifiquement ce site, et mettant en avant le micro-endémisme qui y est observé (Bradford and Jaffré 2004), ce micro-endémisme des Roches de la Ouaième est plus important que celui qui avait été signalé par ces auteurs, comme en témoigne la découverte du Planchonella sp. (JM6150) en fleurs, confirmant qu'il s'agit d'une nouvelle espèce connue uniquement de ce lieu.…”

Section: Discussionunclassified

Inventaire Botanique du Massif du Panié et des Roches de la Ouaième, Nouvelle-Calédonie

Munzinger¹

2013

Evaluation Rapide De La Biodiversité Du Massif Du Panié Et Des Roches De La Ouaième, Province Nord, Nouvelle-Calédonie

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Plant species microendemism and conservation of montane maquis in New Caledonia: two new species of Pancheria (Cunoniaceae) from the Roche Ouaïème

Cited by 32 publications

References 18 publications

Conservation Priorities in a Biodiversity Hotspot: Analysis of Narrow Endemic Plant Species in New Caledonia

Conservation Priorities in a Biodiversity Hotspot: Analysis of Narrow Endemic Plant Species in New Caledonia

A second species in the endemic New Caledonian genusGastrolepis(Stemonuraceae) and its implications for the conservation status of high-altitude maquis vegetation: coherent application of the IUCN Red List criteria is urgently needed in New Caledonia

Inventaire Botanique du Massif du Panié et des Roches de la Ouaième, Nouvelle-Calédonie

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