| 词条 | Motu One (Marquesas Islands) |
| 释义 |
| name = Motu One | local_name = | image_name = Nwmarqpic.png | image_size = 290px | image_caption = Northwestern Marquesas Islands. Motu One and its lagoon are the pale blue oval shape in the upper right. Image courtesy of Johnson Space Center. | map = Pacific Ocean | map_caption = Location of Motu One in the Pacific Ocean | location = South Pacific Ocean | coordinates = {{Coord|7.85|S|140.38|W|type:isle_region:PF|display=inline,title}} | archipelago = Marquesas Islands | waterbody = | area_km2 = 0.03 | area_footnotes = | coastline_km = | coastline_footnotes = | elevation_m = | elevation_footnotes = | highest_mount = | country = France | country_admin_divisions_title = Overseas country | country_admin_divisions = French Polynesia | population = 0 | population_as_of = 2002 | density_km2 = 0 }}Motu One (Marquesan for "Sand Island"; {{lang-fr|Îlot de Sable}}) is the name of a small sandbank with no vegetation located on the western edge of a coral reef. The reef is approximately {{convert|5|km}} in diameter and the islet or islets are less than a hectare in surface, rising only a few feet above sea level and changing shape regularly owing to the action of the currents.[1] Motu One is the northernmost of the Marquesas Islands, located about {{convert|30|km}} northeast of Eïao and {{convert|15|km}} northeast of Hatutu. It is also the only island in the group that is not made of exposed volcanic material, being a calcareous coral reef on a volcanic plug.[2] Motu One is administratively part of the commune (municipality) of Nuku-Hiva, itself in the administrative subdivision of the Marquesas. Although Motu One was reportedly visited by Marquesans, primarily on egg-collecting missions, there is no archaeological evidence that they were ever inhabited. The first Westerners to sight the islet were on the 1813-1814 voyage of the American commander Commodore David Porter, who named it Lincoln Island. Subsequent explorers also called it Sand Island. EcologyGreen sea turtles nest on Motu One. There is a large stand of Porolithon (Hydrolithon) that is unique in French Polynesia.[3]There are a wide variety of pelagic birds nesting on the islets including a subspecies of the southern Marquesan reed warbler, the Mohotani Marquesan warbler (Acrocephalus mendanae consobrina) (Murphy & Mathews, 1928).[4] Since 1992, the whole reef and island ecosystem have been protected as the Motu One Reserve.[5] See also
References1. ^Status of Coral Reefs in French Polynesia 2. ^Status of Coral Reefs in French Polynesia 3. ^Status of Coral Reefs in French Polynesia 4. ^Marquesan Reed-warbler (Acrocephalus mendanae) 5. ^Biodiversité et Conservation en Outre-mer - Polynésie française External links
2 : Islands of the Marquesas Islands|Uninhabited islands of French Polynesia |
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