Table 1.
Mean (±SE) body mass, plasma levels of T3 and metabolic rates of chick-rearing of male and female kittiwakes in Kongsfjorden, Svalbard. 12 males and 12 females were sampled in 2001, 24 females and 25 males were sampled in 2010.
Figure 1.
Relationship between plasma levels of total T3 and BMR (panel A), and mass-independent BMR (residuals of BMR regressed on body mass, panel B) in chick-rearing black-legged kittiwakes in Kongsfjorden, Svalbard in 2001.
T3 was measured in blood samples obtained at the colony prior to BMR measurements in the lab using a respiratory chamber. Open symbols denote females and closed symbols denote males.
Figure 2.
Relationship between plasma levels of total T3 and FMR (panel A), and mass-independent FMR (residuals of FMR (log) regressed on body mass, panel B) in chick-rearing black-legged kittiwakes in Kongsfjorden, Svalbard in 2010.
Open symbols denote females and closed symbols denote males.