Geography of New Caledonia Geography of New Caledonia The geography of New Caledonia ("Nouvelle-Calédonie"), an overseas collectivity of France located in the subregion of Melanesia, makes the continental island group unique in the southwest Pacific. Among other things, the island chain has played a role in preserving unique biological lineages from the Mesozoic. It served as a waystation in the expansion of the predecessors of the Polynesians, the Lapita culture. Under the Free French it was a vital naval base for Allied Forces during the War in the Pacific. The archipelago is located east of Australia, north of New Zealand, south of the Equator,
Biodiversity of New Caledonia while 27 are considered extinct. The Gymnosperms are more common on exposed ridges or next to rivers or creeks in floodplains. Their concentration is important at individual locations which provide lifesaving refugia, because environmental conditions make interspecific competition less severe. Four genera, "Araucaria", "Libocedrus", "Prumnopitys" and "Retrophyllum" that populate the subantarctic Pacific, have endemic species in New Caledonia. The genus "Acmopyle" (Podocarpaceae), currently present in New Caledonia and Fiji, is a fossil in Patagonia. There are 13 endemic species of "Araucaria", including "A. rulei" and "A. columnaris". The island shares some "Araucaria" species with Australia's Norfolk Island. Many, if not