Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 395 résultats pour les termes de recherche: rat OR Rattus rattus

Affichage des résultats: 91 à 100

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Étude du statut et de la distribution des oiseaux des forêts humides de la Province Sud de la Nouvelle-Calédonie - Rapport final.

Étude ayant pour but de dégager des priorités en terme de conservation du patrimoine avifaunistique de la Nouvelle-Calédonie en étudiant le statut et la distribution des oiseaux des forêts humides et les menaces qui s'exercent sur eux.

Systematics and evolution of New Caledonian Araucaria

Ce rapport de thèse étudie la systématique et la phylogénie du genre Araucaria en Nouvelle-Calédonie. 238 pages.thèse sur la systématique et l'évolution des résineux du genre Araucaria en Nouvelle-Calédonie

Prolifération d'espèces animales ou végétales

Une espèce, animale ou végétale, est dite envahissante lorsqu'elle prolifère et entre en concurrence avec les espèces natives. Elle prend alors la place des autres espèces et devient largement dominante, déséquilibrant tout l'écosystème. D...

Lack of nucleotide variability in a beetle pest with extreme inbreeding

The coffee berry borer beetle #Hypothenemus hampei$ (Ferrari) (#Curculionidae$ : #Scolytinae$) is the major insect pest of coffee and has spread to most of the coffee-growing countries of the world. This beetle also displays an usual life cycle, with...

A simple and rapid device for measuring planktonic primary production by in situ sampling, and 14C injection and incubation

A system (LET GO) is described that enables measurements of primary production at sea after #in situ$ incubation, with 14C being injected at depth immediately after enclosure of the sample. Each incubation cell, about 200 ml, is made of two transpare...

Impacts of shrimp farm effluent on water quality, benthic metabolism and N-dynamics in a mangrove forest (New Caledonia)

Water quality parameters, sediment oxygen demand (SOD), dissolved organic and inorganic nutrient fluxes, and N-cycle processes (nitrification; denitrification; dissimilatory nitrate reduction to ammonium (DNRA)) were determined in a New Caledonian ma...

Fermentative hydrogen production by a new alkaliphilic Clostridium sp (strain PROH2) isolated from a shallow submarine hydrothermal chimney in Prony B...

The hydrogen-producing strain PROH2 pertaining to the genus Clostridium was successfully isolated from a shallow submarine hydrothermal chimney (Prony Bay, New Caledonia) driven by serpentinization processes. Cell biomass and hydrogen production perf...

Colony-colony interactions between highly invasive ants

Among invasive species, ants are a particularly prominent group with enormous impacts on native biodiversity and ecosystem functioning. Globalization and on-going climate change are likely to increase the rate of ant invasions in the future, leading ...

Maturation and spawning in captivity of penaeid shrimps

As no indigenous species of commercial penaeid shrimp live in the waters of French Po1ynesia, the pre1iminary step in deve10ping shrimp aquaculture was to obtain maturation and spawning in captivity. Five species have been investigated. Wi1d-caught j...

Phytoplankton dynamics in the southern New Caledonian lagoon during a southeast trade winds event

During the Echolag cruise (13 February-8 March 2007), the effect of 16-30 knot trade winds on abundance, community structure and dynamics of phytoplankton was investigated in the southern part of the New Caledonian coral reefs and surrounding oceanic...