The doubly labeled water method is a form of indirect calorimetry that has been developed
only recently to the stage of application to human studies. The method measures integral CO …

Dehydration is a frequent etiology of morbidity and mortality in elderly people. It causes the
hospitalization of many patients and its outcome may be fatal. Indeed, dehydration is often …

Stable isotope analysis (SIA) has emerged as a common tool in ecology and has proven
especially useful in the study of animal diet, habitat use, movement, and physiology. SIA has …

Biology of Marine Birds provides the only complete summary of information about marine
birds ever published. It analyzes their breeding biology, ecology, taxonomy, evolution, fossil …

The energetic costs of different behaviours are critical in modulating the behavioural ecology
of free‐living animals. Despite this, measurement of energy expenditure in the field has …

A model is proposed for oxygen isotope fractionation in body water of terrestrial, herbivorous
mammals larger than 1 kg. The goal of this model is to estimate the oxygen isotopic …

The new edition of Human Body Composition is the most complete text in the burgeoning
field of body composition research. The book covers the full range of methods to assess …

Billions of songbirds migrate between continents twice each year, but the energy costs of
this feat have never been measured for free-flying individuals. Here we follow New World …

Bird flight has always intrigued mankind. This book provides an up to date account of our
existing knowledge on the subject, as well as offering new insights and challenging some …

Pinnipeds and seabirds feed at sea, but are tied to shore to rear their young. Such a
fundamental life history constraint should lead to convergent adaptations in foraging and …