Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1427 résultats pour les termes de recherche: changement climatique

Affichage des résultats: 421 à 430

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Genetic diversity and phylogeny of Aedes aegypti, the main arbovirus vector in the Pacific

Background The Pacific region is an area unique in the world, composed of thousands of islands with differing climates and environments. The spreading and establishment of the mosquito Aedes aegypti in these islands might be linked to human migration...

Innate Immune Responses of a Scleractinian Coral to Vibriosis

Scleractinian corals are the most basal eumetazoan taxon and provide the biological and physical framework for coral reefs, which are among the most diverse of all ecosystems. Over the past three decades and coincident with climate change, these phot...

A soft technology to improve survival and reproductive performance of Litopenaeus stylirostris by counterbalancing physiological disturbances associat...

The consequences of handling stress (fishing, transfer, eyestalk ablation) on shrimp broodstock are poorly documented. The weakness of farmed shrimp, Litopenaeus stylirostris, during winter is a major problem in New Caledonia, because of seasonal cli...

Reconstruction of local sea levels at South West Pacific Islands : a multiple linear regression approach (1988-2014)

Rising sea levels are a critical concern in small island nations. The problem is especially serious in the western south Pacific, where the total sea level rise over the last 60 years has been up to 3 times the global average. In this study, we aim a...

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...

Differential weathering in ultramafic rocks of New Caledonia : the role of infiltration instability

Ultramafic rocks of New Caledonia present extensive pseudokarstic features: undulations of the base of the weathering profile, fractures enlarged by dissolution, dolines. Possible influence of the infiltrative instability on differential weathering o...

Fracture controlled permeability of ultramafic basement aquifers : inferences from the Koniambo massif, New Caledonia

We study the relationship between fracture distribution and permeability in weathered peridotites exposed to tropical climate using the data from the Koniambo massif (New Caledonia, South Pacific). The vertical distribution of hydraulic conductivity ...

Global patterns of tree wood density

Wood density is a fundamental property related to tree biomechanics and hydraulic function while playing a crucial role in assessing vegetation carbon stocks by linking volumetric retrieval and a mass estimate. This study provides a high-resolution m...

Conférence de l'UNC | La reproduction chez les poissons

Le mois d'avril sous le signe des "poissons" à l'UNC Date : Lundi 28 avril 2014 à 18h Lieu : Nouméa, Grand amphithéâtre de l'Université de la Nouvelle-Calédonie Type : Conférence "La reproduction chez les poissons : diversité des comport...

La richesse spécifique des poissons

L'indicateur « richesse spécifique des poissons » correspond au nombre d'espèces présentes. Les poissons sont sensibles aux conditions du milieu. Si les conditions se dégradent, la richesse spécifique diminue. Cet indicateur n'est pas spécif...