Figure 2. G. morsitans hexane extracts contain candidate attractants.
(A) The decoy paradigm. The decoy consists of a knot in a length of black yarn, dosed with extract. (B) Percentage of males that landed on the decoy, when dosed with a 24 hour extract, and remained on it continuously for more than 5 minutes. n=15. (C) Examples of total ion current chromatograms of 24 hour hexane extracts. Peak numbers correspond to the identified compounds. Additional data are shown in Fig. S1. (D) Normalized relative abundance of compounds identified in 24 hour hexane extracts. Normalization is to the sum of the areas of all peaks. One-way ANOVA followed by Tukey’s multiple comparison test; n = 4. Values indicated with different letters are significantly different. Error bars are SEM. (E) Normalized relative abundance of methyl branched alkane (compound # 17) in virgin and mated females. Mann-Whitney test; n = 4.