Biologists develop framework to quantify and categorize the animal welfare impacts of biological invasions

Increases in global trade and travel are causing animal and plant species to be more frequently introduced to regions of the world where they do not naturally occur. In these new regions, these species are often referred to as “alien species.” The process through which they are introduced is known as a “biological invasion.” Much research has been carried out to identify the biodiversity impacts of biological invasions – these are impacts that affect the survival of native species.