Modulating factors of the energetic effectiveness of huddling in small mammals

Abstract

Huddling is effective in decreasing metabolic rate permitting energy saving. However, this decrease varies among different species depending on physical, physiological and behavioral characteristics of the huddled individuals. Following a general model authors analyzed the effects of ambient temperature, thermal conductance and ontogeny on the huddling effectiveness (energy saving level from huddling bahaviour) in white mice Mus musculus. Also, authors studied the effects of thermal conductance by using the Sigmodontine Abrothrix andinus as a model organism.