Energy Requirements of Beavers (Castor canadensis) Swimming Underwater

  title={Energy Requirements of Beavers (Castor canadensis) Swimming Underwater},
  author={D Allers and B. M. Culik},
  journal={Physiological Zoology},
  pages={456 - 463}
Energy requirements of beavers (Castor canadensis) swimming voluntarily underwater were investigated in Neumünster Zoo (Germany) in a covered, still‐water swim channel with oxygen and carbon dioxide respirometry. During the experiments, all activities of the beavers were monitored and recorded. While at rest within their thermoneutral zone on land (17°C), beavers had a respiratory quotient of 0.95 and a resting metabolic rate of 1.58 W kg−1. When resting in water, energy requirements rose to 2… 
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