Synthesis of the most important knowledge and data gaps identified and collated through the assessment. Confidence levels in the 
summary for policymakers were allocated with full consideration of the gaps listed in the table; closing those gaps would strengthen 
the understanding of biological invasions. Experts have assessed the estimated cost and scientific challenge of closing these gaps, as 
well as the potential gain in increasing understanding of and successfully tackling biological invasions globally (from very low to very 
high). The listed gaps may not be relevant at local or regional scales. 
 <Section-header> Table SPM A 1 Table of knowledge and data gaps  </Section-header> 

THE THEMATIC ASSESSMENT REPORT ON INVASIVE ALIEN SPECIES AND THEIR CONTROL
19SUMMARY FOR POLICYMAKERS
BACKGROUND
Table SPM A 1 Table of knowledge and data gaps 