The UN Convention on Biological Diversity calls on signatory countries to prevent the introduction of alien species which threaten ecosystems, habitats or species, or to control or eradicate them if they have already been introduced.
國際「生物多樣性公約」也敦促締約國，應避免引進對生態系統、棲息環境與物種有不利影響的外來種，並儘可能控制與消滅外來物種。