Figure 1From: Maternal effects mediated by egg quality in the Yellow-legged Gull Larus michahellis in relation to laying order and embryo sexConcentrations of different egg components in relation to laying order and sex. Values are mean and associated standard errors. Letters denote statistically significant differences between levels of laying order at post-hoc tests from mixed models including sex and laying order as fixed effects, and clutch identity as a random factor (see Results).Back to article page