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Large-scale effects of migration and conflict in pre-agricultural groups: Insights from a dynamic model
University of Palermo, Italy.
Linnaeus University, Faculty of Technology, Department of Mathematics.
University of Palermo, Italy ; National Institute for Nuclear Physics (INFN), Napoli, Italy.
Linnaeus University, Faculty of Social Sciences, Department of Social Studies. (DISA ; CSS)ORCID iD: 0000-0003-2837-0137
2017 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 12, no 3, e0172262Article in journal (Refereed) Published
Abstract [en]

The debate on the causes of conflict in human societies has deep roots. In particular, the extent of conflict in hunter-gatherer groups remains unclear. Some authors suggest that large-scale violence only arose with the spreading of agriculture and the building of complex societies. To shed light on this issue, we developed a model based on operatorial techniques simulating population-resource dynamics within a two-dimensional lattice, with humans and natural resources interacting in each cell of the lattice. The model outcomes under different conditions were compared with recently available demographic data for prehistoric South America. Only under conditions that include migration among cells and conflict was the model able to consistently reproduce the empirical data at a continental scale. We argue that the interplay between resource competition, migration, and conflict drove the population dynamics of South America after the colonization phase and before the introduction of agriculture. The relation between population and resources indeed emerged as a key factor leading to migration and conflict once the carrying capacity of the environment has been reached.

Place, publisher, year, edition, pages
2017. Vol. 12, no 3, e0172262
National Category
Social Sciences Interdisciplinary Environmental Sciences International Migration and Ethnic Relations
Research subject
Environmental Science, Natural Resources Management; Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-61188DOI: 10.1371/journal.pone.0172262ISI: 000396073700071OAI: oai:DiVA.org:lnu-61188DiVA: diva2:1079669
Available from: 2017-03-09 Created: 2017-03-09 Last updated: 2017-11-29Bibliographically approved

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Tamburino, LuciaBravo, Giangiacomo

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CiteExportLink to record
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  • apa
  • harvard1
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  • de-DE
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