Determinants of intra-specific variation in basal metabolic rate

Sources of inter- and intra-individual variation in basal metabolic rate in the zebra finch, Taeniopygia guttata

We investigated the physiological background to individual variation in basal metabolic rate (BMR) in a laboratory population of a small passerine bird, the Zebra finch, Taeniopygia guttata. We especially explored whether food-quality during early development influenced the BMRlater in life. Zebra finches were raised on two different food regimes; one (dlow qualityT) involvingonly mixed...

Country-specific Determinants of Intra Industry Trade Types of Agricultural Sector in Selected Developing Countries

Intra-individual variation of basal metabolic rate and the influence of daily habitual physical activity before testing.

The present study determined the intra-individual variation of BMR measurements, using a standard out-patient protocol, with the subjects transporting themselves to the laboratory for the BMR measurements after spending the night at home. The effect of a non-fasting state and variation in daily habitual physical activity the day before testing was evaluated. Eight male and eleven female subject...

Intra-specific variation in resting metabolic rate in MF1 mice is not associated with membrane lipid desaturation in the liver.

The 'membrane pacemaker' hypothesis provides a putative mechanistic linkage between variations in energy metabolism, rates of ageing and lifespan across different species. Within species we have found positive associations between longevity and metabolism, which contrast the inter-specific trends. It is of interest to know therefore how levels of lipid desaturation in membranes are linked to va...

Intra-Seasonal Flexibility in Avian Metabolic Performance Highlights the Uncoupling of Basal Metabolic Rate and Thermogenic Capacity

Stochastic winter weather events are predicted to increase in occurrence and amplitude at northern latitudes and organisms are expected to cope through phenotypic flexibility. Small avian species wintering in these environments show acclimatization where basal metabolic rate (BMR) and maximal thermogenic capacity (MSUM) are typically elevated. However, little is known on intra-seasonal variatio...