Fig. 3. Effect of nutrition and social inhibition (Experiment 2) on the development of foraging behavior. Bees were placed in single-cohort colonies under a combination of starved/fed and social inhibition/no inhibition treatments. (A) Trial by trial results; numbers above bars represent number of bees observed foraging per group. (B) Pooled results; groups that differed significantly are designated with different letters (a,b). Values are means ± S.E.M.; overall ANOVA: starvation, P<0.001; social inhibition, P<0.001; starvationxsocial inhibition (SI), not significant. SI+/–, with/without social inhibition treatment (forager transplant).