Physiological Differentiation of Vertebrate Populations Page 1 Annu. Rev. Ecol. Syst. 1991.
22:193-228 Copyright ? 1991 by Annual Reviews Inc. All rights reserved PHYSIOLOGICAL …

Aerobic metabolism underlies vital traits such as locomotion and thermogenesis, and
aerobic capacity influences fitness in many animals. The heart is a key determinant of …

The influence of seasonal changes in temperature and climate on metabolic rates in birds
has been a topic of interest to ornithologists and ecophysiologists for decades (eg, Hart …

In response to hypoxic stress, many animals compensate for a reduced cellular O2 supply
by suppressing total metabolism, thereby reducing O2 demand. For small endotherms that …

Metabolic rate is a key aspect of organismal biology and the identification of selective factors
that have led to species differences is a major goal of evolutionary physiology. We tested …

Since small mammals have a large surface to mass ratio, one would expect them to quickly
dehydrate and perish at high environmental temperatures. Nonetheless, a large number of …

Adaptive explanations that rely on physiological arguments are common, but tests of
hypotheses about the significance of whole‐animal physiological performance (eg, aerobic …

In species that are distributed across steep environmental gradients, adaptive variation in
physiological performance may be attributable to transcriptional plasticity in underlying …

Minimum and maximum metabolism in response to cold were measured in 30 species of
Australian monotremes, marsupials, eutherians and birds. In marsupials and the echidna …

We have previously observed that female MF1 mice appeared to reach a limit in their food
intake and milk production during late lactation, reaching a plateau between days 13 and 16 …