Figure 2
From: Gonadal steroid levels in rock pigeon eggs do not represent adequately maternal allocation
The difference in the amount of detectable gonadal steroid hormones in yolks of mature pre-ovulatory follicles compared with eggs (yolk plus albumen) for first and second eggs of the rock pigeon. The boxplots represent 25th and 75th percentiles as lower and upper boundaries of the box with median values as central tendencies, and the error bars represent 1.5 times of the interquartile range. *p < 0.05; **p < 0.01; ***p < 0.001; ns – not significant.
