Invasive alien species (IAS) in Norway; distributed on different ecological impact category (A) defined as the assumed ecological impact by an alien species evaluated by the NBIC, and organism groups (B). Source: Norwegian Biodiversity Information Centre; NBIC (

  Part of: Blaalid R, Magnussen K, Westberg NB, Navrud S (2021) A benefit-cost analysis framework for prioritization of control programs for well-established invasive alien species. NeoBiota 68: 31-52.