Light, time, and the physiology of biotic response to rapid climate change in animals.

@article{Bradshaw2010LightTA,
  title={Light, time, and the physiology of biotic response to rapid climate change in animals.},
  author={William Bradshaw and Christina M. Holzapfel},
  journal={Annual review of physiology},
  year={2010},
  volume={72},
  pages={
          147-66
        }
}
Examination of temperate and polar regions of Earth shows that the nonbiological world is exquisitely sensitive to the direct effects of temperature, whereas the biological world is largely organized by light. Herein, we discuss the use of day length by animals at physiological and genetic levels, beginning with a comparative experimental study that shows the preeminent role of light in determining fitness in seasonal environments. Typically, at seasonally appropriate times, light initiates a… 
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