Calculation of substrate and oxygen uptake rates in varied substrate availability. A. Calculated efficency values for each substrate in varied share (β
) of the total substrate uptake rate (v
). Values are mean ± standard deviation. B. Box and whisker plots of the proportion of substrates according to the total substrate uptake flux by efficiency score greater than 0.8. The bold horizontal line in panels indicate mean.: n = 76925. ° Outliers.