Figure 2.

Circulating estrogen and androgen concentrations in female A. burtoni from Experiment 1. Brooding females that had their developing young removed and were then fed for 2 weeks (fed) had higher plasma levels of both A and E compared to mouthbrooders that were allowed to retain their young (mouthbrooding), and those that had their embryos removed and were food deprived (food-deprived). Data are plotted as means±SE. Different letters indicate statistical differences at p<0.05.