Alien species have been key cause of extinctions

Mar 05, 2019, 1:49 AM EST
(Source: Ibán Lopez/flickr)
(Source: Ibán Lopez/flickr)

Alien species have been “solely responsible” for 13 percent of total extinctions among plant and animal species since 1500, according to a new study by UCL researchers. Of the 953 global extinctions, 300 have been driven by alien species, in part or entirety.

The findings of the study disprove the claims that aliens are just as threatening to the survival of a species than the natives, writes Science Daily. The study provides compelling statistical evidence for a direct link between biogeographical origin of a species and its impact on others.

A researcher added that some species have been considered native for the study, as the details about their origins remain hazy, notes Fox News. In that light, these results could be viewed as a subdued reflection of reality, with alien species responsible for even more extinctions than attributed to them by the research.

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