Oxygen consumption of brown noddy(anous stolidus)embryos in a quasiequilibrium state as lowered ambient temperatures

Abstract

The oxygen consumption (Mo",) of the semi-precocial brown Noddy embryos at different stages of development was measured at 36C and again after 5hr exposure to lowered ambient temperatures 30 and 32 c). 2. 'The Mo. measured in a quasiequilibrium state was equal to the value predicted by a temperature coefficient of 2. 1. In contrast to precocial chickens. the semi-precocial Noddy had no apparent metabolic response to cooling before hatching