O'BrienEtAl_Supplymentary material

SUPPLEMENTARY MATERIAL Table S1. Repeated measures incurred by polyandrous females were avoided by only including one male mate, chosen randomly (a), for each polyandrous female when calculating mean HDV-mated and variance of HDV-mated. Alternatively, HDV-mated and variance of HDV-mated was calculated by including only the least related mate (b) and only the most related mate (c), per polyandrous female. Significance level different from those presented in the main document are highlighted in bold. Table S2. Mean ± SD, variance and range of relatedness (HDV) for all actual female-male mates (identified by offspring genetic parentage) during each breeding event. Table S3. Mean relatedness (HDV) and variance generated from 10,000 simulations of random pairings between all assigned mothers and all potential mates from each breeding event. Two-tailed 95% confidence intervals and significance values (HDV P-value and Variance P-value) indicate whether HDV mean and variance of actual mates (see Table 2) differed from randomly generated mean and variance values. Note: lower HDV equals greater relatedness.