Kleiber, Max
Published: August 21, 2008, 7:16 pm
Updated: August 21, 2008, 7:16 pm
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Peter Saundry Max Kleiber (1893-1976), a Swiss-American animal scientist who was one of the first to make accurate measurements of the rate of energy use relative to body size among different species of mammals (1932). He claimed that the 3/4 power of body weight was the most reliable basis for predicting the basal metabolic rate of mammals and for comparing nutrient requirements among mammals of different sizes. Klieber’s Law: MR =aM0.75, where MR is metabolic rate (watts), M is body mass (kg), and a is a constant. However, although Kleiber's law has been widely used and thought to apply to all of life, significant variation in metabolic scaling has been observed among various taxonomic groups of animals and plants, and among various physiological states. Kleiber also provided the basis for the conclusion that total efficiency of energy utilization is independent of body size and pioneered the use of isotopes to study metabolic processes associated with lactation in cattle (1947).
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Citation
Douglas Glazier (Lead Author);Cutler J. Cleveland (Contributing Author);Peter Saundry (Topic Editor) "Kleiber, Max". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth August 21, 2008; Last revised Date August 21, 2008; Retrieved May 18, 2013 <http://www.eoearth.org/article/Kleiber,_Max>
The Author
Douglas Glazier is a professor of biology at Juniata College. He is presently the leader of Juniata College’s Environmental Task Force and is very dedicated to the research pursuits of his students. Dr. Glazier was chair of Juniata College’s Environmental Science Program from 1995-1998. His research interests include functional biology and life-history evolution of mammals (especially murid rodents) and crustaceans (especially cladocerans and pericaridans), ecology of freshwater springs, eco ... (Full Bio)
Max Kleiber (1893-1976), a Swiss-American animal scientist who was one of the first to make accurate measurements of the rate of energy use relative to body size among different species of mammals (1932). He claimed that the 3/4 power of body weight was the most reliable basis for predicting the basal metabolic rate of mammals and for comparing nutrient requirements among mammals of different sizes. Klieber’s Law: MR =aM0.75, where MR is metabolic rate (watts), M is body mass (kg), and a is a constant. However, although Kleiber's law has been widely used and thought to apply to all of life, significant variation in metabolic scaling has been observed among various taxonomic groups of animals and plants, and among various physiological states. Kleiber also provided the basis for the conclusion that total efficiency of energy utilization is independent of body size and pioneered the use of isotopes to study metabolic processes associated with lactation in cattle (1947).
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Max Kleiber. (Source: UC Davis Magazine)
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