JEB -- Roberts et al. 207 (6): 993 Figure IG7

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Fig. 7. Log body mass (M_b)-specific power output during normal (P_body,norm; open symbols) and maximal hovering flight (P_body,max; filled symbols) vs log M_b for Xylocopa varipuncta females. Assumed drag coefficient (C_D)=1 (bottom panel) and 3 (top panel). Model II regression for C_D=1: log P_body,norm=1.979+0.516(log M_b), r₂₇=0.43, P<0.02 (solid line); log P_body,max=2.004+0.405(log M_b), r₂₆=0.32, P=0.11. Model II regression for C_D=3: log P_body,norm=2.380+0.633(log M_b), r₂₇=0.29, P=0.13; log P_body,max=2.662+3.890(log M_b), r₂₆=0.02, P=0.89.