Fig. 1
From: The baculum affects paternity success of first but not second males in house mouse sperm competition
A Proportion of embryos sired by the first male (P1) plotted against shaft width of the first-to-mate male and B the proportion of embryos sired by the second male (P2) plotted against shaft width of the second-to-mate male. Baculum measures were standardized to a mean of 0 and a SD of 1. Regression lines represent predicted values (with 95% confidence intervals in grey) from beta-binomial GLMMs, with a dashed line indicating a non-significant effect