Fig. 5.

Median gustatory response scores (GRS, closed circles) and quartiles (upper and lower lines) of bees tested for tactile acquisition in experiment 2. 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 younger than foragers with short foraging durations (6–13 days) and age-matched nurse bees (see Table 1). Foragers with long foraging durations (>15 days) had significantly lower GRS than foragers with short foraging durations (6–13 days) (Table 3). This significant difference is marked with an asterisk (^*P⩽0.05). The other groups did not differ in their GRS. In each group, 30 bees were tested.