Short photoperiods reduce winter energy requirements of the meadow vole, Microtus pennsylvanicus

  title={Short photoperiods reduce winter energy requirements of the meadow vole, Microtus pennsylvanicus},
  author={J. Dark and I. Zucker},
  journal={Physiology & Behavior},
  • J. Dark, I. Zucker
  • Published 1983
  • Biology, Medicine
  • Physiology & Behavior
  • Adult male voles were maintained for 10 weeks in long or short photoperiods (14 or 10 hr light/day) at 23 degrees C and then for 6 days at 10 degrees C. Short photoperiod voles weighed approximately 20% less and consumed 36% and 42% fewer calories than did long-day animals at 23 degrees C and 10 degrees C, respectively. Relative energy intake (kcal/g body mass) was lower for short-than long-day voles at 10 degrees C. Short-day animals gathered more nesting material than their long-day… CONTINUE READING
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