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Hugh Ellis of the University of San Diego USA is measuring metabolic rate in kittiwakes. When the chicks are 15 days old,
he measures over a period of two days field metabolic rate using doubly labelled water.
Than the bird is placed for 4 hours in a respiratory chamber to measure basal metabolic rate. The metabolic rates will be
related to hormone and pollution levels.|
In the background, the pump of the measurement unit is working constantly. Sorry for the noise.
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