Fig. 1.

Median gustatory response scores (GRS, closed circles) and quartiles (upper and lower lines) of bees tested for tactile acquisition in experiment 1. We analysed foragers with short foraging durations (6–13 days) and age-matched nurse bees as well as foragers with long foraging durations (>15 days) and age-matched nurse bees. Note that in this experiment, foragers with long foraging durations (>15 days) and age-matched nurse bees were significantly older than foragers with short foraging durations (6–13 days) and age-matched nurse bees (see Table 1). There were no significant differences in the GRS between the different groups (see Table 3). In each group, 30 bees were tested.