We assessed the prevalence of alien species as a driver of recent extinctions in five major taxa (plants, amphibians, reptiles, birds and mammals), using data from the IUCN Red List. Our results show that alien species are the second most common threat associated with species that have gone completely extinct from these taxa since AD 1500. Aliens are the most common threat associated with extinctions in three of the five taxa analysed, and for vertebrate extinctions overall.
An invited contribution to the special feature ‘Biology of extinction: inferring events, patterns and processes’ edited by Barry Brook and John Alroy.
- Received July 16, 2015.
- Accepted December 18, 2015.
- © 2016 The Author(s)
Published by the Royal Society. All rights reserved.