Alignment of Blackburn et al. (2011) scheme with categories in Hawai‘i’s non-native species checklist. Bar graphs depict counts of species that are considered “Naturalised” (purple) and “Questionably Naturalised” (orange) in Hawai‘i per island, with state-wide totals next to checklist status names. Coloured polygons represent alignment or misalignment with the recommended categories. Full descriptions of Blackburn et al. (2011) categories are available in Table 2.