Metabolism of leatherback turtles, gigantothermy, and thermoregulation of dinosaurs

@article{Paladino1990MetabolismOL,
  title={Metabolism of leatherback turtles, gigantothermy, and thermoregulation of dinosaurs},
  author={Frank V. Paladino and Michael P. O’connor and James R Spotila},
  journal={Nature},
  year={1990},
  volume={344},
  pages={858-860}
}
LEATHERBACKS (Dermochelys coriacea) are among the largest living reptiles (>900 kg)1, 2 and range from the tropics to north of the Arctic Circle3, 4. They maintain elevated body temperatures (25.5 °C) in cold seawater (7.5 °C)5, 6 and heat up on land7. Metabolic and thermoregulatory mechanisms of leatherbacks have important implications for considerations of size and function in animal biology8–10 and for speculation on the endothermic capacities of dinosaurs11–18. Here we report that metabolic… 

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Growth and metabolism of leatherback sea turtles (Dermochelys coriacea) in their first year of life

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Exercise warms adult leatherback turtles ☆ Brian

Leatherback sea turtles (Dermochelys coriacea) can maintain body temperature (TB) up to 18 °C above that of the surrounding sea water (TW) which allows leatherbacks to enter cold temperate waters and

Exercise warms adult leatherback turtles.

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  • 2007

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TLDR
Understanding the leatherback's needs for gelatinous zooplankton, versus the availability of these resources, can help to better assess population trends and the influence of climate induced resource limitations to reproductive output.

Behavioral and metabolic contributions to thermoregulation in freely swimming leatherback turtles at high latitudes

TLDR
It is estimated that metabolic rates necessary to support the observed Tg are ~3 times higher than resting metabolic rate, and that specific dynamic action is an important source of heat for foraging leatherbacks.

Oxygen stores and aerobic metabolism in the leatherback sea turtle

TLDR
Lung volume and blood volume in leatherbacks were measured to estimate partitioning of oxygen stores and their potential contribution to aerobic metabolism during diving, suggesting that the turtles were repaying an oxygen debt incurred in the netting procedure.

Thermal independence of muscle tissue metabolism in the leatherback turtle, Dermochelys coriacea.

  • D. PenickJ. Spotila F. Paladino
  • Biology, Environmental Science
    Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
  • 1998

Dinosaur body temperatures: the occurrence of endothermy and ectothermy

  • F. Seebacher
  • Environmental Science, Geography
    Paleobiology
  • 2003
TLDR
The commonly asked question whether dinosaurs were ectotherms or endotherms is inappropriate, and it is more constructive to ask which dinosaurs were likely to have been endothermic and which ones ectothermic, which suggests endothermy most likely evolved among the Coelurosauria and, to a lesser extent, among the Hypsilophodontidae.
...

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