Fig. 3
Comparison of aggression scores for undisturbed, disturbed, and one-day-old bees kept in the same social group. A comparison of aggression scores for bees kept together in mixed groups showed that disturbed bees are typically less aggressive than undisturbed bees when kept together (Wilcoxon Exact Test (one-tailed) 6U:2D X2 1 = 4.01, P < 0.045, 4U:4D X2 1 = 13.5, P < 0.0002, 2U:6D X1 2 = 1.79, P < 0.18). Similarly, and as predicted, one-day-old bees were less aggressive than nine-day-old bees, regardless of disturbance history (Wilcoxon Exact Test (one-tailed) 2U:6DO X2 1 = 5.56, P < 0.0184, 2D:6DO X2 1 = 4.35, P < 0.037). Aggression scores for bees kept in uniform groups (8U, 8D) are shown for comparison. Box hinges show the 1st and 3rd quartiles, whiskers indicate 1.5*IQR from the hinge, and the central tendency line indicates the median