Figure 2.

Escorting and lifetime reproductive success. (a) In females, increased escorting was associated with higher lifetime reproductive success as adults, independent of the positive effect of escorting on adult body mass. (b) In males, there was no additional effect of escorting per se, controlling for effects on body mass. Model prediction ± s.e. from a GLMM with litter and social group as random terms. Data from 76 individuals from 55 communal litters in eight groups. Raw data grouped into mean ± s.e. for 10 equal bins for clarity. (Online version in colour.)