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(24-01) Monitoring target and non-target effects of Bt maize. Bartsch, D.1, Saeglitz, C.*,1, Muecher, T.1, Schuphan, I.1, Toschki, A.1, Ross-Nickoll, M.1, Gathmann, A.1, 1 University of Technology Aachen, Aachen, Germany ABSTRACT- Since risk is both a product of exposure and hazard, it becomes more and more clear that monitoring should not only target the exposure (e.g. probability of gene flow), but more important concentrate on the consequences (and potential hazard) of successful transgene flow to wild relatives of GMPs. In addition, environmental monitoring of GMPs has to validate the long-term biosafety assessment given at the stage of commercialization. The Bt corn example is presented on how case specific and general surveillance components can be connected. Lepidopteran species are likely to be susceptible against transgenic corn plants expressing cry1Ab toxins. The German Macrolepidoptera consists of appr. 1400 species. Considering habitat preference, we found 95 lepidopteran species reported to live in at the field edge of maize fields representing 7 % of the total species list. Relative to the total number of species in Germany the Pieridae are the highly represented. We need an intelligent selection of relevant indicator species together with baseline data to increase the effectiveness of monitoring techniques. Key words: GMPs, monitoring, Bt maize |
