The island of New Caledonia lies in the south-west Pacific, in the tropical zone north of New Zealand. The most sizeable land areas of New Caledonia are the mainland (16,000 km2) known as "Grande Terre", the Ile des Pines 150 km2) and the Loyalty Islands, which consist of Ouvéa (140 km2), Lifou (1,150 km2) and Maré (650 km2). Our main study site is the Parc des Grandes Fougères, but we have worked also in the Parc Provincial de la Rivière Bleue and in rain forests all over the island, and on other islands, such as Ouvéa and Wallis & Futuna.