The relationship between basal metabolic rate and daily energy expenditure in birds and mammals
Article Abstract:
The relationship between birds' and mammals' basal metabolic rate (BMR) and daily energy expenditure (DEE) was observed and two distinctions were made. The first model is the "shared pathways" by which BMR is replaced by DEE, and the other is the "partitioned pathways" by which DEE includes BMR. Phylogenetic relationships reveal that there is no significant relationship between birds in DEE and BMR, but there exists such relationship in mammals. Animal physiology does not provide enough answer to show the relationship of DEE and BMR in mammals than in birds.
Publication Name: The American Naturalist
Subject: Earth sciences
ISSN: 0003-0147
Year: 1996
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Physiology and phylogeny: the evolution of locomotor energetics in hylid frogs
Article Abstract:
The evolution of locomotor energetics in North American hylid frogs was investigated. The aimwas to examine the validity of the aerobic capacity hypothesis, which assumes that the evolution of metabolic rate and the origin of endothermy were related to functional and evolutionary links between physiological traits such as resting and maximum rates of metabolism and locomotor traits such as locomotor endurance. Phylogenetic analysis showed positive correlation between resting and maximal rates of metabolism, thus supporting the aerobic capacity hypothesis.
Publication Name: The American Naturalist
Subject: Earth sciences
ISSN: 0003-0147
Year: 1993
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