List of Figures

View Image Figure 1:
‘Step by step’ principle for the release of GMOs (Züghart et al., 2008, modified).
View Image Figure 2:
Intra- and interspecific gene flow of cultivated, weedy, wild sugar beet and related wild species within and between agricultural fields and the environment (Bartsch et al., 2003, modified).
View Image Figure 3:
Pathways for ERA and PMEM and relevance of scales.