Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 2309 résultats pour les termes de recherche: ~riviere OR creek OR eau douce

Affichage des résultats: 581 à 590

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Les suivis environnementaux de Vale NC

Le projet Vale Nouvelle-Calédonie a de multiples impacts potentiels sur la qualité de l'environnement. Les milieux marins et terrestres, les eaux douces et l'air font donc l'objet de suivis environnementaux. En milieu marin, plusieurs réseaux doi...

Bilan environnemental de Vale Nouvelle-Calédonie - 2013 -

Le CCCE, association de loi 1901 créée le 29 octobre 2009 à l'issue de la signature du Pacte pour une Développement Durable dans le Grand Sud, rédige annuellement un bilan des suivis environnementaux mis en place par l'industriel Vale Nouvelle-C...

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Monodominance at the rainforest edge: case study of Codia mackeeana (Cunoniaceae) in New Caledonia

Monodominance is unexpected in tropical forests, which usually exhibit rich and diverse flora. Mechanisms leading to monodominant forest are commonly discussed within the theoretical framework of forest succession. One of the central issues for manag...

What revegetation method will restore the biodiversity of old mine sites in New Caledonia;Deuxième conférence internationale sur l'écologie des mil...

New Caledonia is renowned for its floristic diversity and high level of endemism. Outcrops of ultramafic rock, the origin of nickel ore, cover 1/3 of the Grand Terre (main island) and possess a highly diverse flora (1800 species of phanerogams of whi...

Benthic pelagic coupling in a shallow oligotrophic ecosystem : Importance of microphytobenthos and physical forcing

In coral reef lagoons, microphytobenthos (MPB) primary production can be of the same order of magnitude as coral or macroalgal production. As they are situated in oligotrophic waters, sediments receive low amount of allochtonous nutrients, and their ...

Taxonomic resolution needed to describe invertebrate assemblages and to detect harvesting effects on coral reef ecosystems

Due to the cost and time required for species identification, the taxonomic sufficiency approach has been developed in order to detect community response to a disturbance, using high taxonomic level without great loss of information. This concept has...

Inferring savannah-rainforest boundary dynamics from vegetation structure and composition : a case study in New Caledonia

A direct consequence of deforestation and forest fragmentation in the tropics is the increased importance of boundaries between forest fragments and savannahs. These boundaries are critical zones for understanding the dynamics of savannahs and forest...

Recent species in old Islands : the origin of introduced populations of Litoria aurea (Anura : Hylidae) in New Caledonia and Wallis

New Caledonia is a megadiverse tropical island in the southwest Pacific, however, inhabited by only one species of amphibian, Litoria aurea (Hylidae). We used both molecular (CO1 and ND4 gene sequencing) and morphometric data to explore its geographi...

The Fisheries Information System of Ifremer: a multidisciplinary monitoring network and an integrated approach for the assessment of French fisheries,...

Since 2000, Ifremer has been implemented a Fisheries Information System (FIS), in strong collaboration with the DPMA (Direction of fisheries and aquaculture of the French Ministry of Agriculture and Fisheries). The FIS aims at building an operational...