FIGURE 2.

Importance of drivers of major alien species impacts on biodiversity under a best‐case and worst‐case scenario among socioecological contexts as estimated by 36 experts on biological invasions. Responses are summarized by socioecological context: (a) zonobiomes, (b) taxonomic groups, (c) realm and (d) socio‐economic development. Estimates indicate the probability of respondents answering in lower uncertainty categories, meaning they are more certain that the driver is likely to surpass the threshold of major impact on biodiversity. Significant estimates are indicated by asterisks (significance levels: * < 0.05, ** < 0.01, *** < 0.001). Darker whiskers represent estimates under a best‐case scenario for the respective drivers, and lighter whiskers represent estimates under a worst‐case scenario. In panel (d), socioecological contexts are defined as (i) developed countries: socio‐economically highly developed countries; (ii) developing countries: socio‐economically poor countries with mostly slow rates of economic growth; (iii) countries with emerging economies: socio‐economically rapidly developing countries and middle income countries (for all definitions, see Table S2)