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Picea glauca Tmax (the leaf temperature corresponding to the maximum rate of respiration), as a function of tree size at the FTE in Alaska. Boxplot represent the median and the first and third quartiles. Whiskers delimit the range for each group, with outliers falling outside 1.5 times the interquartile range marked by points. Significant differences between groups are marked by different letters (p<0.05). Dark green box=trees ≥10cm DBH, light green box=saplings 5–10cm DBH. n=36.
