Numerical summary of the aggressiveness exhibited by crickets treated with amine-receptor blockers in knockout tournaments.

Test group: vehicle (DMSO in ringer), ß-blocker (propranolol), tyramine-, dopamine-, octopamine-RB (the receptor blockers yohimbine, fluphenazine and epinastine respectively). N vs. N: first round, naïve, fight inexperienced crickets; W1 vs. W1: second round, winners of first round; W2 vs. W2: third round, winners of second round. The median and interquartile range (IQR) is given for the level of aggression and total fight duration (inter-fight interval 5 min in each case) as well as p values for the tournaments from Kruskal Wallis analyses.