Thermal Variability Increases the Impact of Autumnal Warming and Drives Metabolic Depression in an Overwintering Butterfly

@inproceedings{Williams2012ThermalVI,
  title={Thermal Variability Increases the Impact of Autumnal Warming and Drives Metabolic Depression in an Overwintering Butterfly},
  author={Caroline M Williams and Katie E Marshall and Heath A MacMillan and Jason D. K. Dzurisin and Jessica J. Hellmann and Brent J Sinclair},
  booktitle={PloS one},
  year={2012}
}
Increases in thermal variability elevate metabolic rate due to Jensen's inequality, and increased metabolic rate decreases the fitness of dormant ectotherms by increasing consumption of stored energy reserves. Theory predicts that ectotherms should respond to increased thermal variability by lowering the thermal sensitivity of metabolism, which will reduce the impact of the warm portion of thermal variability. We examined the thermal sensitivity of metabolic rate of overwintering Erynnis… CONTINUE READING

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