Hummingbird flight: Sustaining the highest mass-specific metabolic rates among vertebrates

@article{Suarez2005HummingbirdFS,
  title={Hummingbird flight: Sustaining the highest mass-specific metabolic rates among vertebrates},
  author={R. Suarez},
  journal={Experientia},
  year={2005},
  volume={48},
  pages={565-570}
}
  • R. Suarez
  • Published 2005
  • Biology, Medicine
  • Experientia
Resting and maximal mass-specific metabolic rates scale inversely with body mass. Small hummingbirds achieve the highest known mass-specific metabolic rates among vertebrate homeotherms. Maximal capacities for O2 and substrate delivery to muscle mitochondria, as well as mitochondrial oxidative capacities in these animals may be at the upper limits of what are structurally and functionally possible given the constraints inherent in vertebrate design. Such constraints on the evolutionary design… Expand
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