Division Step 2 Consequences of establishment and spreading

United Kingdom

Event	Likelihood(H, M, L)	Certainty(VC, RC, RU, VU)	Comments in support of assessment^f1
The assessor is referred for guidance to Appendix A and Appendix B of the ICES Code of Practice.
The final rating for the consequences of establishment and spreading is assigned the value of the element (individual probability) with the highest rating and the final rating for the level of certainty is assigned the value of the element with the lowest level of certainty.
Genetic mixing with local populations leads to a loss of genetic diversity.
Competition (food, space) with or predation on native populations leads to their extirpation.
Other undesirable events of ecological nature
Some of the abovementioned events persist even after removal of the introduced species.
Final rating^f2

Annotations

f1: The assessor is referred for guidance to Appendix A and Appendix B of the ICES Code of Practice.
f2: The final rating for the consequences of establishment and spreading is assigned the value of the element (individual probability) with the highest rating and the final rating for the level of certainty is assigned the value of the element with the lowest level of certainty.