Fig. 2
SPR effects on polyandry and the operation of sexual selection on males. a Focal male total mating frequency. b Focal male mating success (number of unique mates); c proportion of mate’s daughters sired by focal males; d total number of daughters sired by the focal males; e the standardised variance in focal male mating success (IS) (the opportunity for pre-copulatory sexual selection), ***: non-overlapping 95% bootstrap confidence interval; f the standardised variance in focal male siring success (opportunity for post-copulatory sexual selection, IP), n.s.: overlapping bootstrap confidence intervals; g the standardised variance in offspring (daughters) sired by the focal males (opportunity for selection, I), n.s.: overlapping bootstrap confidence intervals; h the multivariate gradient of focal male mating success (M) on reproductive success (T); i the multivariate gradient of focal male paternity share (P) on reproductive success (T); j the multivariate gradient of the productivity (N) of the mates of focal males and reproductive success (T); k the maximum standardised multivariate pre-copulatory sexual selection differential index (multivariate s’max (pre)); l the maximum standardised multivariate post-copulatory sexual selection differential index (multivariate s’max (post)). Sample sizes: N = 27 for controlSPR and N = 29 for SPR− treatment. a–d Horizontal black line represents the mean of the data; p values were obtained from F tests from GLM models. e–l Error bars in refer to the standard error of the mean (SE). Note the differences in scale of the y axis in each panel. White colour refers to controlSPR treatment; red colour refers to the SPR− treatment. h–l P values obtained from Student's t tests from multivariate linear regressions
