The importance of size as a determinant of metabolic rate (MR) was first suggested by
Sarrus and Rameaux over 160 years ago. Max Rubner's finding of a proportionality between …

Operative temperature (Te) and standard operative temperature (Tes) models have been
used to address ecological questions about the thermal biology of ectotherms and …

Mammalian and avian torpor is widely viewed as an adaptation for survival of cold winters.
However, in recent years it has been established that torpor can also be expressed in …

Little information is available on seasonal changes in thermal physiology and energy
expenditure in marsupials. To provide new information on the subject, we quantified how …

Abstract Helox (79% helium and 21% oxygen) has often been used for thermobiological
studies, primarily because helium is thought to be metabolically inert and to produce no …

Given the ubiquity and evolutionary importance of parasites, their effect on the energy
budget of mammals remains surprisingly unclear. The eastern chipmunk (Tamias striatus (L …

We examine here the effects on evaporative water loss, at and below thermoneutrality, of
perturbing the evaporative environment for the red-capped parrot (Purpureicephalus …

Total evaporative water loss of endotherms is assumed to be determined essentially by
biophysics, at least at temperatures below thermoneutrality, with evaporative water loss …

The effects of parasites on their hosts can vary among host populations, but few studies
have examined geographic variation in host-parasite interactions. We examined the effects …

We present two independent lines of evidence that a tiny dasyurid marsupial, the ningaui
(Ningaui spp.), has acute physiological control of its insensible evaporative water loss below …