Mating competitiveness experiment 2 ♂/1 ♀.

For total replicates, the RIDL and ROCK controls and the actual competition experiment (RIDL vs. ROCK), values are given for the number of crosses ( = no. of females laying viable eggs) and for the mean number of eggs laid per female with Standard Errors (±SE). When comparing data from the total replicates, ROCK females fertilised by RIDL males laid more eggs (Mann-Witney, U = 1863, p = 0.043) whereas in the competition experiment (RIDL vs. ROCK), there were fewer observed fertilisations by RIDL males than expected (χ2 test, χ2 = 6.75, df = 1, p = 0.009).