Thermal acclimation and metabolism in the Allegheny Mountain salamander Desmognathus ochrophaeus.

摘要: Abstract 1. Oxygen consumption measurements were made at 5, 10, 15 and 20°C on Desmognathus ochrophaeus salamanders acclimated these temperatures. 2. Partial acclimation, observed in groups 20°C, correlates with the ability of D. to maintain relatively constant activity levels field during seasonal temperature variations from 10 20°C. 3. Undercompensation, group 5°C, suggests there is a metabolic “shut-down” associated winter torpor . 4. Groups displayed thermal homeostasis between 5 10°C. This would enable remain active early spring fall when temperatures temporarily below