Fig. 7. Changes in a signaller's behaviour after agonistic level 2 (threat display) accompanied by urine release (open columns, N=42 bouts) or not accompanied by urine release (filled columns, N=108 bouts). Responses are measured as changes in the relative frequency of certain agonistic levels (level -2, -1, 0, 1, agonistic level lower than the initial level; level 2, agonistic level equal to the initial level; levels 3-5, agonistic level higher than the initial level) from the current to the following time interval. Asterisks denote significant differences between the behaviours following agonistic level 2 with urine release and agonistic level 2 without urine release (^*P<0.05, ^**P<0.01; multivariate ANOVA). Values are means +1 S.E.M.