Figure 7. Manduca moths laid more eggs on the (Z)-3- than on the (E)-2-scented side of the plant.
(A) The effect of different GLV-mixes on the oviposition behavior of female Manduca moths was tested during the 2010 field season on native Datura wrightii plants. On each experimental day, two different mixes were tested in a paired design. Mixes used on different experimental days are plotted above the timeline. The detailed composition of each mixture is described in Table 3. (B) Difference in number of eggs oviposited per plant. Higher oviposition rates were observed for the (Z)-3-scented side of the D. wrightii plants. Treatment pairs with no oviposited eggs were excluded prior to the statistical analysis (Wilcoxon signed-rank test). The median is represented as a line in each box, box outlines mark the 25% and 75% percentiles; outliers are depicted as circles (if value > 1.5× the interquartile range). For raw data, see F6B_AllmannSpaethe2012_oviposition.xlsx (Dryad: Allmann et al., 2012).