An invasive species is, according to executive order 13112, a species that is not native and causes harm (1).No matter what harm a species causes, if the species is native it cannot be invasive, It can be classified instead as a nuisance . Invasive species and nonnative species are not the same thing (NOAA 2). To be an invader, the species has to causes problems, as executive order 13112 defines as “does or is likely to cause economic or environmental harm or harm to human health.”(1) This simply means that invasive species are unlikeable. Therefore, if people like the nonnative species and its consequences it is classified as not invasive.
This problem has several causes. All these species have to come from somewhere. According to NOAA, most Aquatic invaders come from the ballast waters of ships(14)An example of this happening is zebra mussels as well as some seaweeds. Also, many invaders are imported for the aquarium hobbyists (NOAA 28) According to the Ontario Ministry of Natural Resources other ways invasive species travel include, moving soil that has invasive species/seeds/eggs in it, same goes for firewood, releasing pets, gardening, and water transport.(3)
These species cause many problems. “In 1997, a paper mill in Michigan spent $1.4M to remove 400 cubic yards of zebra mussels from its intake”( NOAA 6) this is a lot of capital to tempora...
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"Ten Invasive Species That the United States Exported." National Environmental Coalition on Invasive Species RSS. National Environmental Coalition on Invasive Species, n.d. Web. 01 May 2014.
Matsumoto, Nancy. "Have You Ever Tried to Eat a Feral Pig?" The Atlantic. Atlantic Media Company, 11 July 2013. Web. 05 May 2014.
"Where Do Invasive Species Come from and How Do They Spread?" - Ontario Ministry of Natural Resources. Ontario Ministry of Natural Resources, 27 Aug. 2012. Web. 5 May 2014.
"Economic Impacts of Invasive Plants in California." Cal-IPC: Assessing Cost. California Invasive Plant Council, n.d. Web. 07 May 2014.
"Raccoons Damage Japanese Temple." Japan Probe RSS. N.p., n.d. Web. 07 May 2014.
"What We Do to Stop Invasive Species - National Wildlife Federation." What We Do to Stop Invasive Species. National Wildlife Federation, n.d. Web. 13 May 2014.
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