spread of invasive alien species while acknowledging that 
drivers differ across regions and level of impact. The lack 
of border biosecurity (such as inspections undertaken by 
quarantine officers of commodities, goods and people) 
in one country weakens the efficacy of such measures in 
other countries.
13SUMMARY FOR POLICYMAKERS
The thematic assessment report on
INVASIVE ALIEN SPECIES
AND THEIR CONTROL
TIC ASSESSMENT REPORT ON INVASIVE ALIEN SPECIES AND THEIR CONT