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Invading the New World
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I always thought earthworms were good little guys, until last Friday when I sat at a TGIF seminar to clear my head (from programming). If you are interested, wikipedia is a good place to start.
Origins
Most of the harmful invasive earthworms are European or Asian and came over in soil during the 18th century but our own recreational practices and construction methods are the primary mode of transportation for the earthworms now (Frelich, 2006). Their movement in the soil is quite slow on their own, but with human transportation their migration drastically increases. The earthworms are commonly used as bait for fishing, and many escape or are released. This is a very common way in which they move into new locations...
https://blog.sciencenet.cn/blog-306792-377178.html
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