Intercolony variation in seven training parameters for experiment 2.

(a) The average time when training started for bees in each of the six colonies. The average number (b) and duration (c) of bouts performed by bees in the initial training phase. The average number (d) and duration (e) of bouts performed by bees in the reversal training phase. The average number of landings made by a bee on rewarding flowers, yellow landings during initial training (f) and blue landings in reversal training (g), during the 100 flower choices (including the first time it probed a rewarding flower for the first time). In all cases the mean (± S.E.) and median values are given for each colony. The results from Kruskal-Wallis tests indicate whether variation among colonies is significant (statistically significant p-values are shown in bold).