Fig. 6.

QMP-induced changes in activity. Activity levels in 4-day-old QMP-exposed bees were significantly lower than in age-matched control (untreated) bees. The effects of QMP were partially reversed by treating QMP-exposed bees with l-dopa. Data are expressed as mean activity levels ± SEM with a sample size of 20 for each group. Overall significance was determined by one-way ANOVA followed by Tukey's tests for post hoc comparisons. Letters above the bars indicate differences between groups. Groups that share a letter are not significantly different.