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Unformatted text preview: Introduction of New Species Introduction of exotic or alien non-native species into new areas is perhaps the greatest single factor to affect natural populations. More than 1500 exotic insect species and more than 25 families of alien fish have been introduced into North America; in excess of 3000 plant species have also been introduced. The majority of accidental introductions may fail, however, once an introduced species becomes established, its population growth is explosive. Kudzu, a plant introduced to the American south from Japan, has taken over large areas of the countryside....
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- Fall '10