Figure 2.

Yolk mass (mean+s.e.) of eggs containing male and female embryos in relation to maternal cage treatment. Numbers above bars represent sample size (number of replicates, see §2). The difference between male and female eggs among eggs laid by T-females was significant (two-level hierarchical linear model, χ²=11.9, p<0.001), as was the difference between female eggs laid by control and T-females (χ²=5.80, p=0.016). The difference between male eggs laid by control and T-females was marginally non-significant (χ²=2.74, p=0.098).