Life-history trade-offs between components of fitness arise because reproduction entails
both gains and costs. Costs of reproduction can be divided into ecological and physiological …

Animals must balance their energy budgets even when confronted with periodic food
shortages and/or adverse environmental conditions. Especially, small endothermic animals …

The last 'hibernation book'was published in 1982, nearly 40 years ago, so clearly an update
was needed. The options were a book written by a single author or an edited book written by …

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 …

Daily torpor and hibernation (multiday torpor) are the most efficient means for energy
conservation in endothermic birds and mammals and are used by many small species to …

Although energy conservation by cold-climate adult endotherms in winter is often viewed as
the main function of torpor, recent evidence suggests that this may not always be the case …

In mammals, reproduction, especially for females is energetically demanding. Therefore,
during the reproductive period females could potentially adjust patterns of thermoregulation …

Torpor and reproduction in mammals and birds are widely viewed as mutually exclusive
processes because of opposing energetic and hormonal demands. However, the reported …

Small endotherms must change roosting and thermoregulatory behaviour in response to
changes in ambient conditions if they are to achieve positive energy balance. In social …

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) …