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 …

We studied the relationship between one component of immune function and basal metabolic
rate (BMR), an indicator of the ‘pace-of-life syndrome’, among 12 tropical bird species and …

Avian incubation, the process by which birds apply heat to their eggs, has stimulated the
thinking of students of ornithology for decades. Early interest included studies on the proper …

The ‘energy demand’ hypothesis for short-term adjustments in basal metabolic rate (BMR)
posits that birds adjust the size of their internal organs relative to food intake, a correlate of …

Broad–scale comparisons of birds indicate the possibility of adaptive modification of basal
metabolic rate (BMR) and total evaporative water loss (TEWL) in species from desert …

Sphingolipids are components of all eukaryotic cells that play important roles in a wide
variety of biological processes. Ceramides and sphingosine-1-phosphate (S1P) are signaling …

We tested the hypothesis that birds in arid environments, where primary productivity is low
and surface water is scarce, have reduced energy expenditure and water loss compared with …

We call into question the idea that birds have not evolved unique physiological adaptations
to desert environments. The rate at which desert larks metabolize energy is lower than in …

We investigated interindividual variation and intra‐individual phenotypic flexibility in basal
metabolic rate (BMR), total evaporative water loss (TEWL), body temperature (T b ), the …

A number of authors have suggested that hyperthermia, the elevation of body temperature (T
b ) 2–4C above normal, contributes to a reduction in total evaporative water loss (TEWL) in …