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Aliens are Invading! The state of Invasive Species in Canada

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In Canada, about 5% of mammal species and 27% of some plant species are invasive. Not all invasive species are harmful for an ecosystem but many are. Their populations take off because they usually don’t have any natural predators. With so many new species crowding into a habitat and using up its resources, native species have a hard time keeping up, which leads to their population numbers dropping.

purple loosestrive
Purple loosestrife

http://www.hww.ca/hww2.asp?id=220

biodiversity logo convention 2010

2010 is the Year of Biodiversity and Earth Rangers has teamed up with The United Nations Convention on Biological Diversity to bring you a daily dose of biodiversity basics

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