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Fig. 6. Relative contributions of carbohydrates (CHO) (black bars), lipids (white bars) and proteins (grey bars) to total energy expenditure of ruff sandpipers during (A) cold exposure and (B) running. Values significantly different from controls (22°C for cold exposure and speed 0 for exercise) are indicated; *P<0.05, {dagger}P<0.001. Values are means + S.E.M. (N=6 for cold exposure and as in Fig. 3 for exercise).