Table 2.

Relationship between mass-specific metabolic rate, wingbeat frequency and body morphometrics of euglossine bees using conventional and phylogenetically independent contrasts (PIC) analyses

Conventional
PIC gradual
PIC speciational
ParameterEquationr2Pbr2Pbr2P
n (Hz) 0.41n1.00 0.887 <0.001 0.87 (0.55, 1.19) 0.787 <0.001 0.93 (0.70, 1.15) 0.895 <0.001 
Mb (g) 44Mb−0.31 0.797 <0.001 −0.27 (−0.11, −0.42) 0.601 <0.001 −0.28 (−0.14, −0.43) 0.647 <0.001 
R (cm) 79R−0.76 0.862 <0.001 −0.71 (−0.43, −1.01) 0.750 <0.001 −0.73 (−0.45, −1.01) 0.770 <0.001 
S (cm2) 67S−0.37 0.851 <0.001 −0.32 (−0.17, −0.47) 0.699 <0.001 −0.35 (−0.22, −0.49) 0.784 <0.001 
Pw (g cm−2) 19Pw−0.98 0.272 0.027  0.027 NS  0.035 NS 
Conventional
PIC gradual
PIC speciational
ParameterEquationr2Pbr2Pbr2P
n (Hz) 0.41n1.00 0.887 <0.001 0.87 (0.55, 1.19) 0.787 <0.001 0.93 (0.70, 1.15) 0.895 <0.001 
Mb (g) 44Mb−0.31 0.797 <0.001 −0.27 (−0.11, −0.42) 0.601 <0.001 −0.28 (−0.14, −0.43) 0.647 <0.001 
R (cm) 79R−0.76 0.862 <0.001 −0.71 (−0.43, −1.01) 0.750 <0.001 −0.73 (−0.45, −1.01) 0.770 <0.001 
S (cm2) 67S−0.37 0.851 <0.001 −0.32 (−0.17, −0.47) 0.699 <0.001 −0.35 (−0.22, −0.49) 0.784 <0.001 
Pw (g cm−2) 19Pw−0.98 0.272 0.027  0.027 NS  0.035 NS 

N=18 species for conventional analysis and 11 contrasts for PIC analysis.

For gradual evolution, branch lengths from Figure 1 were used and for speciational model, branch lengths were set to 1.

n, wingbeat frequency; Mb, body mass; R, forewing length; S, total wing area; Pw,calculated wing loading; NS, not significant.

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