Table 1.
Top 5 economies ranked by the number of invasive species.
Table 2.
Result of the principal factor analysis for 91 economies.
Table 3.
Stepwise regression between number of invasive species and factor scores of the principal components for 91 economies.
Figure 1.
The impact of economic components (R2) on the number of invasive species for different income-groups.
Figure 2.
Economic activities promote biological invasions acting on the different transfer stages of biological invasions.
Table 4.
Result of the principal factor analysis for high-income economies.
Table 5.
Result of the principal factor analysis for upper-middle-income economies.
Table 6.
Result of the principal factor analysis for lower-middle-income economies.
Table 7.
Result of the principal factor analysis for low-income economies.