How data from individual EICAT assessments of the impacts of a hypothetical alien taxon (species XY) inform the EICAT Category to which the taxon is assigned at national and global scales. The global assessment categorises the taxon based on its highest impact anywhere [in this case, a Massive (MV) impact in Vietnam]. National scale assessments are based only on impacts reported from those countries [e.g. Major (MR) for Fiji]. Data Deficient (DD) in India indicates that the alien taxon was assessed but no impact reports from India were found. Reproduced from IUCN (2020a) IUCN EICAT Categories and Criteria, IUCN (Gland): page 20,, with permission from IUCN.

  Part of: Volery L, Blackburn TM, Bertolino S, Evans T, Genovesi P, Kumschick S, Roy HE, Smith KG, Bacher S (2020) Improving the Environmental Impact Classification for Alien Taxa (EICAT): a summary of revisions to the framework and guidelines. In: Wilson JR, Bacher S, Daehler CC, Groom QJ, Kumschick S, Lockwood JL, Robinson TB, Zengeya TA, Richardson DM. NeoBiota 62: 547-567.