When Nonshivering Thermogenesis Equals Maximum Metabolic Rate: Thermal Acclimation and Phenotypic Plasticity of Fossorial Spalacopus cyanus (Rodentia).

Investigates the effect of experimentally varying ambient temperature in the energetics of a small fossorial mammal, the cururo Spalacopus cyanus, rarely experiences extreme thermal fluctuations. Percent decrease in body mass when animals were acclimated to cold; Increase in thermogenic capability and survival probabilities of small mammals of seasonal environments; Discussion of the advantages of phenotypic plasticity.