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Invasive species in New Zealand : ウィキペディア英語版 | Invasive species in New Zealand
A number of introduced species, some of which have become invasive species, have been added to New Zealand's native flora and fauna. Both deliberate and accidental introductions have been made from the time of the first human settlement, with several waves of Polynesian people at some time before the year 1300,〔(New Scientist Webpage: Rat remains help date New Zealand's colonisation ). Retrieved 23 June 2008.〕 followed by Europeans after 1769.〔Abel Tasman did not land, so is unlikely to have introduced anything.〕 Almost without exception,〔It has been suggested that the harrier hawk may have benefited.〕 the introduced species have been detrimental to the native flora and fauna but some, such as sheep and cows and the clover upon which they feed, now form a large part of the economy of New Zealand. Registers, lists and indexes of species that are invasive, potentially invasive, or a threat to agriculture or biodiversity are maintained by Biosecurity New Zealand. A small number of invasive species of New Zealand origin are creating problems in other countries. ==Animal species==
Some of the better-known invasive animal species are:
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