Global extinctions because of alien species reveals a new study

The researchers believe that biosecurity is a necessity to prevent further extinctions because of alien species.

Published: 05th March 2019 03:01 PM  |   Last Updated: 05th March 2019 03:01 PM   |  A+A-

Alien species

For representational purposes


WASHINGTON: It has been noted since the 1500s, alien species are the cause of approximately 126 extinctions in both, animal and plant species.

Out of a total 953 global extinctions, 300 of them went extinct partly due to alien species and out of that 300, 42 per cent or 126 extinctions were solely caused by alien species.

According to the research published in Frontiers in Ecology and the Environment, the data was taken from 2017 IUCN Red List on the total species that have gone extinct globally since 1500.

"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 lead researcher Professor Tim Blackburn.

Overall, the number of animal extinctions caused in some part by alien species is more than 12 times greater than those caused in part by native species.

The researchers believe that biosecurity is a necessity to prevent further extinctions because of alien species.

Stay up to date on all the latest World news with The New Indian Express App. Download now
(Get the news that matters from New Indian Express on WhatsApp. Click this link and hit 'Click to Subscribe'. Follow the instructions after that.)


Disclaimer : We respect your thoughts and views! But we need to be judicious while moderating your comments. All the comments will be moderated by the editorial. Abstain from posting comments that are obscene, defamatory or inflammatory, and do not indulge in personal attacks. Try to avoid outside hyperlinks inside the comment. Help us delete comments that do not follow these guidelines.

The views expressed in comments published on are those of the comment writers alone. They do not represent the views or opinions of or its staff, nor do they represent the views or opinions of The New Indian Express Group, or any entity of, or affiliated with, The New Indian Express Group. reserves the right to take any or all comments down at any time.

flipboard facebook twitter whatsapp