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Platydemus manokwari as an invasive species
''Platydemus manokwari'', also known as the New Guinea flatworm, is a large predatory land flatworm that has become an invasive species in many countries.〔〔 〕
Native to New Guinea, it was accidentally introduced to the soil of many countries. It was also deliberately introduced into two Pacific islands in an attempt to control an invasion of the Giant East African Snail. It eats a variety of invertebrates including land snails, and has had a significant negative impact on the rare endemic land snail fauna of some Pacific islands. It has become established in a wide variety of habitats. It was recorded in 2014 from a hothouse in Caen, France,〔 its first finding in Europe, and in 2015 from New Caledonia, Wallis and Futuna Islands, Singapore, Solomon Islands, Puerto Rico (first record in the Caribbean), and Florida, USA.〔 〕 The researchers said that "while most of the infected territories reported until now were islands, the newly reported presence of the species in mainland US in Florida should be considered a potential major threat to the whole US and even the Americas".〔
== Islands invaded ==
''Platydemus manokwari'' has been introduced to several tropical and subtropical islands such as Micronesia, the Marquesas, the Society Islands, Samoa, Melanesia, and the Hawaiian Islands. These islands often harbor endemic radiations of rare and endangered snail species, which are a primary source of nutrition for ''P. manokwari''.〔Iwai, N., S. Sugiura, et al. (2010). "Predation impacts of the invasive flatworm ''P. manokwari'' on eggs and hatchlings of land snails." Journal of Molluscan Studies 76(3): 275-278〕 ''P. manokwari'' has also been introduced to several Japanese Islands.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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