Fig. 3
Mean isolation indexes for a the frequency of encounters, I f ± SD; I f = (number of homotypic encounters − number of heterotypic encounters) × total number of encounters−1, and b the time spent in encounters, I t ± SD; I t = (time spent in homotypic encounters − time spent in heterotypic encounters) × total time spent in encounters−1 in trios in which males and females were of similar sizes (treatment 1). Codes for trio types are the same as in Fig. 1