Percentage of alien species with impact in relation to the number of introduction pathways. The height of the bar indicates the percentage of the number of taxa with impact within the taxonomic group of species that are introduced via the given number of pathways. Numbers above bars indicate the numbers of species with impact for each taxonomic group and for the given number of pathways.

  Part of: Pergl J, Pyšek P, Bacher S, Essl F, Genovesi P, Harrower CA, Hulme PE, Jeschke JM, Kenis M, Kühn I, Perglová I, Rabitsch W, Roques A, Roy DB, Roy HE, Vilà M, Winter M, Nentwig W (2017) Troubling travellers: are ecologically harmful alien species associated with particular introduction pathways? NeoBiota 32: 1-20.