Effects of Food Availability on Yolk Androgen Deposition in the Black-Legged Kittiwake (Rissa tridactyla), a Seabird with Facultative Brood Reduction
Figure 1
Effect of supplemental feeding on egg mass.
Fresh mass of whole black-legged kittiwake eggs by laying order (A or B egg), treatment (fed or unfed) and year (2003 and 2004). N = 10 for all treatments and years except n = 7 for unfed 2004. Means ± SEM.