Fig. 1.

Effect of antibiotic treatment on the total amount of hydrocarbons in female (a) and male (b) Glossina m. morsitans, as well as on the absolute (c) and relative (d) amount of the females’ contact sex pheromone 15,19,23-trimethyl-heptatriacontane. Ctr = Control (without antibiotics), Gmm^Wgm- = ampicillin-treated, Gmm^Apo = tetracycline-treated. Lines represent medians, boxes comprise interquartile ranges, and whiskers denote minimum and maximum values, except for outliers that lie further away from a quartile than 1.5 times (circles) or 3 times (asterisks) the interquartile range. An asterisk above lines connecting single treatments indicates a significant difference at p < 0.05