Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract Full Text

Invasive non-native species risk assessment in Great Britain.


Invasive non-native species risk assessment in Great Britain is coordinated by the Non-native Species Secretariat for the GB Programme Board for non-native species under a Great Britain strategy that follows the principles of the Convention on Biological Diversity. Risk assessments are commissioned from independent expert assessors and overseen by the Non-native Species Risk Analysis Panel, a panel of risk assessment experts that ensures consistent and technically valid assessments and interpretation. The process uses a risk assessment template to follow closely the scheme used by the European and Mediterranean Plant Protection Organisation (EPPO) for agricultural quarantine pests, modified for all non-native organisms in the natural environment. Each response is documented by the assessor and checked by a peer reviewer and by the Panel. Directly elicited estimates of entry, establishment, spread and impact, with measures of assessor confidence, give an overall semi-quantitative summary of risk, in terms of likelihood and magnitude.