Many birds and mammals drastically reduce their energy expenditure during times of cold
exposure, food shortage, or drought, by temporarily abandoning euthermia, ie the …

All animals face the possibility of limitations in food resources that could ultimately lead to
starvation-induced mortality. The primary goal of this review is to characterize the various …

No species occurs everywhere. Indeed, the majority are absent from most places, and where
they do occur they are usually quite rare. Gaston discusses the structure of these …

The first photographs of the Earth to be taken from outer space are said to have had a
profound influence on how humanity perceives its place in the Universe. They provided a …

The cost of reproduction is a key parameter determining a species' life history strategy.
Despite exhibiting some of the fastest offspring growth rates among mammals, the cost of …

Summary 1997 marked the sesquicentenary of the publication by Carl Bergmann of the
observation that, in general, large‐bodied animal species tend to live further north than their …

On behavioral, hormonal, and physiological grounds, mammalian reproduction can be
compartmentalized into the following continuous sequence of events: mating (courtship …

Aim We reviewed the occurrence of Bergmann's rule in birds (ninety‐four species) and
mammals (149 species), using only studies where statistical significance of the results was …

Recent patterns of global change have highlighted the importance of understanding the
dynamics and mechanisms of species range shifts and expansions. Unique demographic …

A unique interdisciplinary overview of the way mammals reproduce, this volume synthesizes
research done by laboratory physiologists, behaviorists, population ecologists, and animal …