Search Alien Species Assessments 

The Alien Species List of Norway 2018 shows the ecological risk alien species can pose to the biodiversity in Norway. Here you can search for individual species that have been assessed in 2018, or do a filtered search that is adapted to your wishes.

Cited as: Norwegian Biodiversity Information Centre (2018). The Alien Species List of Norway – ecological risk assessment 2018. Retrieved (dato) from ----


The species are classified to one of the following categories:

Severe impact SE; High impact HI; Potentially high impact PH; Low impact LO or No known risk NK.
Not all alien species are risk assessed due to some delimitations, these species are classified as Not risked assessed NR.