A new study shows that alien species highly influence the global extinction since 1500.
A total of 953 global extinction, 300 of them went extinct partly due to alien species and a 126 extinctions totally caused by alien species.
A research published in Frontiers in Ecology and the Environment analysed the red list and extinct global list.
“Some people have suggested that aliens are no more likely than native species to cause species to disappear in the current global extinction crisis,but our analysis shows that aliens are much more of a problem in this regard,”said the lead researcher Tim Blackburn.
The researchers believe that biosecurity is a necessity to prevent further extinctions because of alien species.