Scatter Plot from Scientific Research

Shows the metabolic power versus airspeed, whereas (B) shows the mass-specific metabolic power versus airspeed. The solid line represents the second-degree polynomial-fitted model: Pmet= 11.31 - 2.32U+ 0.14U2; weight-specific Pmet= 35.8 - 7.59U+ 0.47U2, where U is airspeed. The purple triangle at 10 m s-1 in (A) and (B) illustrates the estimated metabolic cost of a thrush nightingale measured by Klaassen et al.,19 using the mass-loss method.

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