This letter shows that unnecessary large isolation distances may restrict farmers' freedom of choice to cultivate GM varieties given the particularities of European landscapes. For the first time we perform a statistical meta-analyses of over 1000 observations on maize gene flow in Europe. Taking into account the results obtained by several statistical approaches, we conclude that separation distances of 20-30 m are enough to keep out-crossing below legal thresholds (0.9 % in the EU). We conclude that mandatory distances established by some European countries (up to 800 m) may be disproportionate to the desired policy objective.
RIESGO Laura;
AREAL Francisco José;
SANVIDO Olivier;
RODRIGUEZ CEREZO Emilio;
2010-08-24
NATURE PUBLISHING GROUP
JRC57118
1087-0156,
http://www.nature.com/nbt/journal/v28/n8/abs/nbt0810-780.html,
https://publications.jrc.ec.europa.eu/repository/handle/JRC57118,
10.1038/nbt0810-780,
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