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Primate energy input and the evolutionary transition to energy-dense diets in humans

Simmen, Bruno ; Pasquet, Patrick ; Masi, Shelly ; Koppert, Georgius J. A. ; Wells, Jonathan C. K. ; Hladik, Claude Marcel

Proceedings of the Royal Society. B, Biological sciences, 2017-06, Vol.284 (1856), p.20170577-20170577 [Periódico revisado por pares]

England: The Royal Society

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Título:
Primate energy input and the evolutionary transition to energy-dense diets in humans
Autor: Simmen, Bruno ; Pasquet, Patrick ; Masi, Shelly ; Koppert, Georgius J. A. ; Wells, Jonathan C. K. ; Hladik, Claude Marcel
Assuntos: Allometry ; Animals ; Biological anthropology ; Body mass ; Body Size ; Diet ; Empirical analysis ; Encephalization ; Energy ; Energy Balance ; Energy consumption ; Energy expenditure ; Energy Intake ; Energy measurement ; Energy Metabolism ; Evolution ; Food Intake ; Food quality ; Hominins ; Human populations ; Humanities and Social Sciences ; Humans ; Monkeys & apes ; Phylogeny ; Primates ; Scaling ; Seasonal Variation ; Species
É parte de: Proceedings of the Royal Society. B, Biological sciences, 2017-06, Vol.284 (1856), p.20170577-20170577
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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Electronic supplementary material is available online at https://dx.doi.org/10.6084/m9.figshare.c.3785636.
Descrição: Humans and other large-brained hominins have been proposed to increase energy turnover during their evolutionary history. Such increased energy turnover is plausible, given the evolution of energy-rich diets, but requires empirical confirmation. Framing human energetics in a phylogenetic context, our meta-analysis of 17 wild non-human primate species shows that daily metabolizable energy input follows an allometric relationship with body mass where the allometric exponent for mass is 0.75 ± 0.04, close to that reported for daily energy expenditure measured with doubly labelled water in primates. Human populations at subsistence level (n = 6) largely fall within the variation of primate species in the scaling of energy intake and therefore do not consume significantly more energy than predicted for a non-human primate of equivalent mass. By contrast, humans ingest a conspicuously lower mass of food (−64 ± 6%) compared with primates and maintain their energy intake relatively more constantly across the year. We conclude that our hominin hunter–gatherer ancestors did not increase their energy turnover beyond the allometric relationship characterizing all primate species. The reduction in digestive costs due to consumption of a lower mass of high-quality food, as well as stabilization of energy supply, may have been important evolutionary steps enabling encephalization in the absence of significantly raised energy intakes.
Editor: England: The Royal Society
Idioma: Inglês

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Primate energy input and the evolutionary transition to energy-dense diets in humans

Simmen, Bruno ; Pasquet, Patrick ; Masi, Shelly ; Koppert, Georgius J. A. ; Wells, Jonathan C. K. ; Hladik, Claude Marcel

England: The Royal Society

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