Fig. 3

Comparison of mean sea turtle hatchling metabolic rates (μL O₂ min⁻¹ g^−0.67) at different activity levels during the frenzy. Error bars represent 95% confidence intervals and we also report data from earlier studies on hatchling metabolic rates. We denote statistical differences between two activity levels within species with * and among 3 or more activity levels with letters. We converted measurements in previous studies from a mass exponent of 1 to an exponent of 0.67 to correct for allometric relationships between metabolic rate and hatchling mass [79]. Statistical differences were determined using mixed-effects models and Tukey’s pairwise comparisons. Data from Booth [7] was collected over the first 24 h of the frenzy but we only included data from the first 2 h of the frenzy