The study of phenotypic evolution should be an integrative endeavor that combines different
approaches and crosses disciplinary and phylogenetic boundaries to consider complex …

Studies on domestication are blooming, but the developmental bases for the generation of
domestication traits and breed diversity remain largely unexplored. Some phenotypic …

Tropical birds are relatively long-lived and produce few offspring, which develop slowly and
mature relatively late in life, the slow end of the life-history axis, whereas temperate birds lie …

Basal metabolic rate (BMR) is the rate of metabolism of a resting, postabsorptive, non-
reproductive, adult bird or mammal, measured during the inactive circadian phase at a …

Repeatability studies are gaining considerable interest among physiological ecologists,
particularly in traits affected by high environmental/residual variance, such as whole-animal …

Standard metabolic rate (SMR) and active metabolic rate (AMR) are two fundamental
physiological parameters providing the floor and ceiling in aerobic energy metabolism. The …

Basal metabolic rate (BMR) provides a widely accepted benchmark of metabolic
expenditure for endotherms under laboratory and natural conditions. While most studies …

Variation in aerobic capacity has far reaching consequences for the physiology, ecology,
and evolution of vertebrates. Whether at rest or active, animals are constrained to operate …

Flow-through respirometry is a powerful, accurate methodology for metabolic measurement
that is applicable to organisms spanning a body mass range of many orders of magnitude …

According to the 'pace‐of‐life'syndrome hypothesis, differences in resting metabolic rate
(RMR) should be genetically associated with exploratory behaviour. A large number of …