Fig. 7From: Does the growing of Bt maize change abundance or ecological function of non-target animals compared to the growing of non-GM maize? A systematic reviewCritical appraisal for the 7279 records in the database. Red bars represent records with low, yellow bars with medium, and green bars with high validity. Hatched bars indicate that no information was available. Missing information for each criterion was treated as either red, yellow, or green for meta-analyses. See Ref. [25] for detailsBack to article page