Summary
At low ambient temperature the Kittiwake,Rissa tridactyla, increased its oxygen consumption, while lung ventilation remained unchanged. A changed breathing pattern (lower frequency and higher tidal volumes) and an increase in the lung O2-extraction was responsible for the observed decrease in the ventilatory requirement, which may be important because it reduces the respiratory heat loss during cold exposure.
References
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The study was supported by the Danish Natural Science Research Council, Gads Fond, Tipsmidlerne and Norsk Polarinstitutt.
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Brent, R., Rasmussen, J.G., Bech, C. et al. Temperature dependence of ventilation and O2-extraction in the Kittiwake,Rissa tridactyla. Experientia 39, 1092–1093 (1983). https://doi.org/10.1007/BF01943124
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DOI: https://doi.org/10.1007/BF01943124