There was an error published in J. Exp. Biol.209, 3141-3154.
In paragraph 4 of the Respirometry section of the Materials and methods, the authors stated:
Therefore, energy consumption was estimated using a constant equivalent of 20 kJ l-1 O2 and then converted to watts using 1 W=0.2777 kJ (Gessaman and Nagy, 1988; Piersma et al., 1995; Piersma et al.,1996; Piersma et al., 2004; Weber and Piersma, 1996).
The sentence should have read:
Therefore, energy consumption was estimated using a constant equivalent of 20 kJ l-1 O2 and then converted to watts using 1 W=1 J s-1 (Gessaman and Nagy, 1988; Piersma et al., 1995; Piersma et al.,1996; Piersma et al., 2004; Weber and Piersma, 1996).
The authors apologise for this error but assure readers that the values on energy use presented in the article have been properly calculated using 1 W=1 J s-1.
