This article reviews the literature on the circadian rhythms of body temperature and whole-
organism metabolism. The two rhythms are first described separately, each description …

Introduction 3. Rhythmicity under standard conditions 3.1. Pattern of oscillation 3.2. Intra-and
interspecies differences 4. Influence of environmental factors 4.1. Ambient temperature 4.2 …

Circadian rhythms influence most of our life activities, notably getting up and going to sleep
every day. The new edition of this book delves into the mechanisms surrounding how these …

The thermal physiology of most birds and mammals is characterised by considerable spatial
and temporal variation in body temperature. Body temperature is, therefore, a key parameter …

The evolution of endothermy in birds and mammals was one of the most important events in
the evolution of the vertebrates. Past tests of hypotheses on the evolution of endothermy in …

Small mammals appear to be less vulnerable to extinction than large species, but the
underlying reasons are poorly understood. Here, we provide evidence that almost all …

Miniature Thermochron iButton dataloggers have transformed the ways in which
researchers collect thermal data. However, one important limitation is that these dataloggers …

Field studies of use of torpor by heterothermic endotherms suffer from the lack of a
standardized threshold differentiating torpid body temperatures (T b) from normothermic T …

Thermochron iButtons are being used increasingly by animal physiologists to measure long-
term patterns of body temperature in reptiles, birds and mammals. Typically, iButtons are …

Trpor is the most effective means for energy conservation available to mammals and is
characterized by substantial reductions in body temperature (Tb) and metabolic rate (MR) …