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The Alien Species List

The Greater Canada Goose, one of many species on Norway’s Alien Species List (Image Credit: Bernard Spragg, CC0 1.0, Image Cropped)

Guest post by Malene Nygård

Lately, alien species have gained a lot of attention, making headlines for all the wrong reasons. Headlines like ‘Alien species are floating on plastic to the Norwegian shore’, ‘Aggressive blind passengers threaten Norwegian blueberries’, and ‘Unwanted species crossing the boarder threaten Norwegian plants’ are example of headings covering newspapers just in the last year. But what exactly is an alien species, and what makes them so unwanted?

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