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Oceania Geopolitical Oceania Oceania is a region centered on the islands of the tropical Pacific Ocean.〔For a history of the term, see Douglas & Ballard (2008) ''Foreign bodies: Oceania and the science of race 1750–1940''〕 Conceptions of what constitutes Oceania vary, with it being defined in various ways, often geopolitically or geographically. In the geopolitical conception used by the United Nations, International Olympic Committee, and many atlases, the Oceanic region includes Australia and the nations of the Pacific from Papua New Guinea east, but not the Malay Archipelago or Indonesian New Guinea.〔(【引用サイトリンク】title=United Nations Statistics Division – Countries of Oceania )〕〔(''Current IOC members'' ).〕 The term is sometimes used more specifically to denote Australasia as a geographic continent, or biogeographically as a synonym for either the Australasian ecozone (Wallacea and Australasia) or the Pacific ecozone (Melanesia, Polynesia, and Micronesia apart either from New Zealand〔Udvardy. 1975. ''A classification of the biogeographical provinces of the world''〕 or from mainland New Guinea〔Steadman. 2006. ''Extinction & biogeography of tropical Pacific birds''〕). Although Christmas Island and the Cocos (Keeling) Islands belong to the Commonwealth of Australia and are inhabited, they are nearer Indonesia than the Australian mainland, and are commonly associated with Asia instead of Oceania. == Demographics by territory == The demographic table below shows all inhabited states and territories of Oceania. The information in this chart comes from the CIA World Factbook〔(CIA World Factbook )〕 or the United States Department of State〔(A-Z List of Country and Other Area Pages ). State.gov (2006-04-04). Retrieved on 2010-11-12.〕, unless noted otherwise or not available (NA); where sources differ, references are included. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Demographics of Oceania」の詳細全文を読む スポンサード リンク
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