Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 2053 résultats pour les termes de recherche: traitement de l'eau

Affichage des résultats: 1351 à 1360

h

h

Botany and genetics of New Caledonian wild taro, Colocasia esculenta

Taro, Colocasia esculenta (L.) Schott, is considered to be an introduced crop in New Caledonia and has been cultivated since its introduction by Melanesian farmers. Wild germplasm exists on the main (continental) island and is represented by three ea...

Stratégie de lutte intégrée contre Cyperus rotundus L. en Nouvelle Calédonie : effets des reprises de labour, des successions de cultures et de l'...

En Nouvelle-Calédonie, Cyperus rotundus, par son mode de développement très rapide et sa forte plasticité, est la mauvaise herbe la plus néfaste en culture maraîchère. Cependant, la prise en compte de sa biologie et du contexte agro-écologiqu...

Stratégie de lutte intégrée contre Cyperus rotundus L. en Nouvelle Calédonie : effets des reprises de labour, des succession de cultures et de l'h...

En Nouvelle-Calédonie, Cyperus rotundus, par son mode de développement très rapide et sa forte plasticité, est la mauvaise herbe la plus néfaste en culture maraîchère. Cependant, la prise en compte de sa biologie et du contexte agro-écologiqu...

Structure and genetic diversity of Ixora margaretae an endangered species

The dry forests of New Caledonia are an exceptional ecosystem because of their numerous endemic botanical species and their highly diversified fauna of insects, mollusks, reptiles and birds. Unfortunately, the area of the dry forests has been signifi...

Crickets of New Caledonia (Insecta, Orthoptera, Grylloidea) : a key to genera, with diagnoses of extant genera and descriptions of new taxa

Crickets (Insecta, Orthoptera, Gryllidea) are amongst the most abundant and diverse insects in New Caledonia: 40 genera are recorded today from the Archipelago and 180 cricket species have been reported; 19 genera and more than 90% of the species are...

Synopsis of the biology and ecology of Pomadasys argenteus (Haemulidae) in New Caledonia

Pomadasys argenteus (Forsskal, 1775) is a major commercial and subsistence species of shore fish in most of its range (East Africa to Fiji) but little information is available on its biology and ecology. The present study investigates the major biolo...

Phylogenetic and Functional Diversity of Microbial Communities Associated with Subsurface Sediments of the Sonora Margin, Guaymas Basin

Subsurface sediments of the Sonora Margin (Guaymas Basin), located in proximity of active cold seep sites were explored. The taxonomic and functional diversity of bacterial and archaeal communities were investigated from 1 to 10 meters below the seaf...

Island life - classification, speciation and cryptic species of Pycnandra (Sapotaceae) in New Caledonia

Pycnandra (Sapotaceae), the largest endemic genus in New Caledonia, comprises 66 species classified in six subgenera. We tested phylogenetic relationships and a proposed infrageneric classification by sampling 60 species for sequences of nuclear ribo...

Linkages between root traits, soil fungi and aggregate stability in tropical plant communities along a successional vegetation gradient

Aims : Determining which abiotic and biotic factors influence soil aggregate stability (MWD) in tropical climates is often confounded by soil type. We aimed to better understand the influence of soil physical and chemical components, vegetation and f...

Drivers of tree community assembly during tropical forest post-fire succession in anthropogenic savannas

In the context of global change, tropical forests are increasingly affected by fires. Understanding the ecological processes driving forest recovery in fire-modified landscapes is a critical issue. We analyzed spatial and temporal (8 years) changes i...