{ "dc.contributor.author": "Isern Sardó, Neus" , "dc.contributor.author": "Fort, Joaquim" , "dc.contributor.author": "Vander Linden, Marc" , "dc.date.accessioned": "2013-02-26T12:55:42Z" , "dc.date.available": "2013-02-26T12:55:42Z" , "dc.date.issued": "2012-12" , "dc.identifier.issn": "1932-6203" , "dc.identifier.uri": "http://hdl.handle.net/10256/7558" , "dc.description.abstract": "Space competition effects are well-known in many microbiological and ecological systems. Here we analyze such an effect in human populations. The Neolithic transition (change from foraging to farming) was mainly the outcome of a demographic process that spread gradually throughout Europe from the Near East. In Northern Europe, archaeological data show a slowdown on the Neolithic rate of spread that can be related to a high indigenous (Mesolithic) population density hindering the advance as a result of the space competition between the two populations. We measure this slowdown from a database of 902 Early Neolithic sites and develop a time-delayed reaction-diffusion model with space competition between Neolithic and Mesolithic populations, to predict the observed speeds. The comparison of the predicted speed with the observations and with a previous non-delayed model show that both effects, the time delay effect due to the generation lag and the space competition between populations, are crucial in order to understand the observations" , "dc.format.mimetype": "application/pdf" , "dc.language.iso": "eng" , "dc.publisher": "Public Library of Science" , "dc.relation.isformatof": "Reproducció digital del document publicat a: http://dx.doi.org/10.1371/journal.pone.0051106" , "dc.relation.ispartof": "PloS ONE, 2012, vol. 7, núm. 12, p. e51106" , "dc.relation.ispartofseries": "Articles publicats (D-F)" , "dc.rights": "Attribution 2.5 Spain" , "dc.rights.uri": "http://creativecommons.org/licenses/by/2.5/es/" , "dc.subject": "Equacions de reacció-difusió" , "dc.subject": "Reaction-diffusion equations" , "dc.subject": "Neolític -- Models matemàtics" , "dc.subject": "Neolithic period -- Mathematical models" , "dc.title": "Space Competition and Time Delays in Human Range Expansions. Application to the Neolithic Transition" , "dc.type": "info:eu-repo/semantics/article" , "dc.rights.accessRights": "info:eu-repo/semantics/openAccess" , "dc.type.version": "info:eu-repo/semantics/publishedVersion" , "dc.identifier.doi": "http://dx.doi.org/10.1371/journal.pone.0051106" , "dc.identifier.idgrec": "016995" }