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Ecology and Energetics of Encephalization in Hominid Evolution [and Discussion]

Hominid evolution is marked by very significant increase in relative brain size. Because relative brain size has been linked to energetic requirements it is possible to look at the pattern of encephalization as a factor in the evolution of human foraging and dietary strategies. Major expansion of th...

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Published in:	Philosophical transactions of the Royal Society of London. Series B. Biological sciences 1991-11, Vol.334 (1270), p.223-232
Main Authors:	Foley, R. A., Lee, P. C., Widdowson, E. M., Knight, C. D., Jonxis, J. H. P.
Format:	Article
Language:	English
Subjects:	Animals Biological Evolution Body Constitution Brain - anatomy & histology Brain - physiology Chimpanzees Diet Ecological genetics Ecology Energy Metabolism Evolution Evolution of Hominid Foraging and Diet Feeding Behavior Food Food Preferences Foraging Fossils Hominidae - anatomy & histology Hominidae - physiology Human ecology Humans Maintenance costs Meat Organ Size Paleontology Primates Primates - anatomy & histology Primates - physiology
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container_title	Philosophical transactions of the Royal Society of London. Series B. Biological sciences
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creator	Foley, R. A. Lee, P. C. Widdowson, E. M. Knight, C. D. Jonxis, J. H. P.
description	Hominid evolution is marked by very significant increase in relative brain size. Because relative brain size has been linked to energetic requirements it is possible to look at the pattern of encephalization as a factor in the evolution of human foraging and dietary strategies. Major expansion of the brain is associated with Homo rather than the Hominidae as a whole, and the energetic costs are likely to have forced a prolongation of growth rates and secondary altriciality. It is calculated here that modern human infants have energetic requirements approximately 9% greater than similar size apes due to their large brains. Consideration of energetic costs of brain allow the prediction of growth rates in hominid taxa and an examination of the implications for life-history strategy and foraging behaviour.
doi_str_mv	10.1098/rstb.1991.0111
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source	JSTOR Archival Journals and Primary Sources Collection; Royal Society Publishing Jisc Collections Royal Society Journals Read & Publish Transitional Agreement 2025 (reading list)
subjects	Animals Biological Evolution Body Constitution Brain - anatomy & histology Brain - physiology Chimpanzees Diet Ecological genetics Ecology Energy Metabolism Evolution Evolution of Hominid Foraging and Diet Feeding Behavior Food Food Preferences Foraging Fossils Hominidae - anatomy & histology Hominidae - physiology Human ecology Humans Maintenance costs Meat Organ Size Paleontology Primates Primates - anatomy & histology Primates - physiology
title	Ecology and Energetics of Encephalization in Hominid Evolution [and Discussion]
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