Physiology: Hibernation in a tropical primate

@article{Dausmann2004PhysiologyHI,
  title={Physiology: Hibernation in a tropical primate},
  author={Kathrin H. Dausmann and Julian Glos and J{\"o}rg U. Ganzhorn and Gerhard Heldmaier},
  journal={Nature},
  year={2004},
  volume={429},
  pages={825-826}
}
The Madagascan fat-tailed dwarf lemur, Cheirogaleus medius, hibernates in tree holes for seven months of the year, even though winter temperatures rise to over 30 °C. Here we show that this tropical primate relies on a flexible thermal response that depends on the properties of its tree hole: if the hole is poorly insulated, body temperature fluctuates widely, passively following the ambient temperature; if well insulated, body temperature stays fairly constant and the animal undergoes regular… 

Hibernation in the tropics: lessons from a primate

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The patterns of heterothermy were measured in Lesser Hedgehog Tenrecs, Echinops telfairi, under semi-natural conditions in an outdoor enclosure during the austral mid-winter in southwestern Madagascar, and the animal is considered to be a protoendotherm.

Seasonal adaptations in energy budgeting in the primate Lepilemur leucopus

These findings suggest that L. leucopus has a very small scope to unfavorable conditions, making it highly vulnerable to changing conditions due to climate change, and a shift of the thermoneutral zone from between 25 and 30 °C in the wet season to between 29 and 32‬C inThe cool dry season is identified.

No energetic benefits from sociality in tropical hibernation

It is concluded that sociality during hibernation is not necessarily driven by energetic demands and might even be energetically disadvantageous in tropical species (at least in larger groups), and other factors, like social coherence or ecological and behavioural constraints, may be of greater influence for the evolution of sociality under tropical conditions.
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