Fig. 4
From: Calls during agonistic interactions vary with arousal and raise audience attention in ravens
Estimated mean values for the fo component (a), the amplitude component (b), and call duration (C) with regard to the level of aggression that elicited the defensive calls. Values were derived from the model with the highest support (Table 4). Bold lines indicate the median. Whiskers show 1.5XIQR, and circles denote outliers. Asterisk show adjusted p values corrected for repeated testing and indicate p≦0.001 (***) and p≦0.01 (**)