Fig. 2

Two first components of the PCA on the behaviors which contributed > 5% to overall behaviors. A individual PCA results for all 30 individuals, where individuals belonging to one dyad are connected via a solid line, small open circles represent individuals’ scores, large open circles represent the average of both dyad partners, B PCA—biplot showing the direction and strength of behaviors for the two first components, where more offensive behaviors are directing to the left side on the first component and defensive behaviors directing to the right (n = 30).Thus, taking A and B together, the more competitive successful individuals can be inferred to be located on the left side of the individuals average and less successful individuals on the right. C and D are analogous to A and B, for only those 26 individuals (13 dyads) showing distinctive competitiveness determined by “winner”/”loser” assignment based on the number of decided conflicts. E individual PCA grouped by population background, again, on the left side of the X-Axis, the more competitive individuals, belonging mainly to the CB population versus the mostly less competitive individuals on the right side of the average