Metabolic acceleration and the evolution of human brain size and life history
Herman Pontzer,Mary H. Brown,David A. Raichlen,Holly M. Dunsworth,Brian Hare,Kara K. Walker,Amy Luke,Lara R. Dugas,Ramon Durazo-Arvizu,Dale A. Schoeller,Jacob Plange-Rhule,Pascal Bovet,Terrence Forrester,Estelle V. Lambert,Melissa Emery Thompson,Robert W. Shumaker,Robert W. Shumaker,Robert W. Shumaker,Stephen R. Ross +18 more
TLDR
Water measurements of total energy expenditure in humans, chimpanzees, bonobos, gorillas and orangutans are used to test the hypothesis that the human lineage has experienced an acceleration in metabolic rate, providing energy for larger brains and faster reproduction without sacrificing maintenance and longevity.Abstract:
Humans are distinguished from the other living apes in having larger brains and an unusual life history that combines high reproductive output with slow childhood growth and exceptional longevity. This suite of derived traits suggests major changes in energy expenditure and allocation in the human lineage, but direct measures of human and ape metabolism are needed to compare evolved energy strategies among hominoids. Here we used doubly labelled water measurements of total energy expenditure (TEE; kcal day(-1)) in humans, chimpanzees, bonobos, gorillas and orangutans to test the hypothesis that the human lineage has experienced an acceleration in metabolic rate, providing energy for larger brains and faster reproduction without sacrificing maintenance and longevity. In multivariate regressions including body size and physical activity, human TEE exceeded that of chimpanzees and bonobos, gorillas and orangutans by approximately 400, 635 and 820 kcal day(-1), respectively, readily accommodating the cost of humans' greater brain size and reproductive output. Much of the increase in TEE is attributable to humans' greater basal metabolic rate (kcal day(-1)), indicating increased organ metabolic activity. Humans also had the greatest body fat percentage. An increased metabolic rate, along with changes in energy allocation, was crucial in the evolution of human brain size and life history.read more
Citations
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References
More filters
Journal Article
R: A language and environment for statistical computing.
TL;DR: Copyright (©) 1999–2012 R Foundation for Statistical Computing; permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and permission notice are preserved on all copies.
Journal ArticleDOI
The evolution of life histories
TL;DR: In this article, age and size at maturity at maturity number and size of offspring Reproductive lifespan and ageing are discussed. But the authors focus on the effects of age and stage structure on fertility.
Journal ArticleDOI
Toward a metabolic theory of ecology
James H. Brown,James H. Brown,James F. Gillooly,Andrew P. Allen,Van M. Savage,Van M. Savage,Geoffrey B. West,Geoffrey B. West +7 more
TL;DR: This work has developed a quantitative theory for how metabolic rate varies with body size and temperature, and predicts how metabolic theory predicts how this rate controls ecological processes at all levels of organization from individuals to the biosphere.
Journal ArticleDOI
The Expensive-Tissue Hypothesis: The Brain and the Digestive System in Human and Primate Evolution
Lloyd Paul Aiello,P.E. Wheeler +1 more
TL;DR: Les tissus du cerveau sont une extension metabollique, mais il n'existe pas de correlation significative entre le taux metabolique relatif de base and the taille relative du taille chez les humains et autres mammiferes a encephale.
Journal ArticleDOI
Basal metabolic rate studies in humans: measurement and development of new equations.
TL;DR: The historical development in the measurement and application of BMR is reviewed and a series of new equations (Oxford equations) have been developed that tend to produce lower BMR values than the current FAO/WHO/UNU equations in 18-30 and 30-60 year old males and in all females over 18 years of age.
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