Figure 3.

Native range of the species absent from Europe (n = 66) considered to have at least a medium probability of arrival, establishment, spread and magnitude of impact on biodiversity and ecosystem services. The insert shows the native regions of established terrestrial and freshwater alien species in Europe (n = 6,224, from DAISIE, 2009). Note that species can occur in more than one region. Terrestrial and Freshwater (Continental TDWG categories): Afr = Africa; As = Asia Temperate; At = Asia Tropical; Aus = Australasia; NAm = North America; SAm = South America. Marine (Spalding et al., 2007): TeAu = Temperate Australasia; TeNWA = Temperate NW Atlantic; TeNWP = Temperate NW Pacific; TeSAf = Temperate Southern Africa; TrEA = Tropical Eastern Atlantic; TrEP = Tropical Eastern Pacific; TrWA = Tropical Western Atlantic; CIP = Central Indo‐Pacific; WIP = Western Indo‐Pacific