After two successful meetings on the ecological implications of GM-crop cultivation in 2008 and 2010, the authors felt encouraged to carry out a follow-up conference in 2012. GMLS III highlights recent scientific developments in the analysis of risks in the agricultural use of genetically modified plants. While in some countries a GM-based agriculture has been largely established, other regions of the world continue cultivation of conventional varieties only. This acknowledges a persistent reservation of the public towards GMO products. The overall need of an emphasis in independent studies...