Fission-fusion and the evolution of hominin social systems

The course of hominin evolution has involved successive migrations towards higher absolute latitudes over the past three million years. Poorer habitat quality further from the equator has led to the necessity for groups occupying higher latitudes to live at lower population densities. Coupled with a...

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Main Authors: Grove, M, Pearce, E, Dunbar, R
Format: Journal article
Language:English
Published: 2012
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author Grove, M
Pearce, E
Dunbar, R
author_facet Grove, M
Pearce, E
Dunbar, R
author_sort Grove, M
collection OXFORD
description The course of hominin evolution has involved successive migrations towards higher absolute latitudes over the past three million years. Poorer habitat quality further from the equator has led to the necessity for groups occupying higher latitudes to live at lower population densities. Coupled with a trend towards increasing group size over this time period, this tendency towards expansion has led to exponential increases in the area requirements of hominin groups, and a concomitant need to adjust foraging patterns. The current analyses suggest that the development of increasingly complex, multi-level fission-fusion social systems could have freed hominins of the foraging constraints imposed by large group sizes and low population densities. Analyses of the fossil record suggest latitudinally-driven differences in area requirements of the australopithecines from East and South Africa, and African and Asian Homo erectus. In contrast, chronologically-driven differences appear between H.erectus as a whole and Homo heidelbergensis, and between H.heidelbergensis and the Neanderthals. These results are discussed in relation to studies of the foraging patterns of primates and hunter-gatherers. © 2011 Elsevier Ltd.
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spelling oxford-uuid:94b30958-8175-48cb-bb83-11055a87e3d52022-03-26T23:41:17ZFission-fusion and the evolution of hominin social systemsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:94b30958-8175-48cb-bb83-11055a87e3d5EnglishSymplectic Elements at Oxford2012Grove, MPearce, EDunbar, RThe course of hominin evolution has involved successive migrations towards higher absolute latitudes over the past three million years. Poorer habitat quality further from the equator has led to the necessity for groups occupying higher latitudes to live at lower population densities. Coupled with a trend towards increasing group size over this time period, this tendency towards expansion has led to exponential increases in the area requirements of hominin groups, and a concomitant need to adjust foraging patterns. The current analyses suggest that the development of increasingly complex, multi-level fission-fusion social systems could have freed hominins of the foraging constraints imposed by large group sizes and low population densities. Analyses of the fossil record suggest latitudinally-driven differences in area requirements of the australopithecines from East and South Africa, and African and Asian Homo erectus. In contrast, chronologically-driven differences appear between H.erectus as a whole and Homo heidelbergensis, and between H.heidelbergensis and the Neanderthals. These results are discussed in relation to studies of the foraging patterns of primates and hunter-gatherers. © 2011 Elsevier Ltd.
spellingShingle Grove, M
Pearce, E
Dunbar, R
Fission-fusion and the evolution of hominin social systems
title Fission-fusion and the evolution of hominin social systems
title_full Fission-fusion and the evolution of hominin social systems
title_fullStr Fission-fusion and the evolution of hominin social systems
title_full_unstemmed Fission-fusion and the evolution of hominin social systems
title_short Fission-fusion and the evolution of hominin social systems
title_sort fission fusion and the evolution of hominin social systems
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