B13 No driver acts in isolation, and interactions 
among drivers are amplifying biological invasions, 
leading to outcomes that can be difficult to predict 
(well established) {2.6.1, 3.1.5, 3.5}. The outcomes of 
interactions among multiple drivers, including feedback, are 
complex and varied (well established) {1.3.3, 3.1.5, 3.5}. 
Some of the highest current rates and greatest magnitudes 
SUMMARY FOR POLICYMAKERS
19SUMMARY FOR POLICYMAKERS
BACKGROUND
B12 