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Figure 2


Fig. 2. The effect of autotomy on metabolic rate (J s–1 kg–1, measured as VCO2 and converted to J [assuming an energy equivalent of 23.3 J ml CO2–1 (Duncan, 1999)] in 18 male field crickets Gryllus bimaculatus. Resting (RVCO2; speed 0 m s–1) and active (AVCO2) metabolic rates (MR) were measured for each individual (two data points per individual are shown). Although there is a strong effect of speed on active metabolic rate, the effect of autotomy treatment (autotomised vs control/intact animals) was significant. Regression lines are drawn to fit active measurements.





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