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Fig. 5. Critical oxygen partial pressure (Pc) for mass-specific
CO2 emission
(
CO2) for
early-stage (open boxes) and late-stage (hatched boxes) animals in each
instar. The boundary of each box marks the 25th percentile and the 75th
percentile. The line within each box indicates the median. Error bars mark the
10th and 90th percentiles. Asterisks indicate a significant difference between
early- and late-stage animals.