Female variation in allocation of steroid hormones, antioxidants and fatty acids : a multilevel analysis in a wild passerine bird
The environment where an embryo develops can be influenced by components of maternal origin, which can shape offspring phenotypes and therefore maternal fitness. In birds that produce more than one egg per clutch, females differ in the concentration of components they allocate into the yolk along the laying sequence. However, identification of processes that shape female yolk allocation and thus o