Fig. 2.

Mean hatching probability according to duration of wear (number of days from the fitting of the ring until fertilization) of CR (A) and AR (B). In B, duration of wear is equal to minimum sperm age. Numbers represent the number of eggs for each category of duration of wear. The interaction between treatment and duration of wear was significant (GLMM, F_1,25 = 12.02, P = 0.002, n = 77 eggs, with nest included as a random variable). When we removed the data point of 13–14 days in B, the interaction remained significant (F_1,24 = 11.63, P = 0.0024).