Space Competition and Time Delays in Human Range Expansions. Application to the Neolithic Transition
Authors: Isern, N., Fort, J. and Vander Linden, M.
Journal: PLoS ONE
Volume: 7
Issue: 12
eISSN: 1932-6203
DOI: 10.1371/journal.pone.0051106
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. © 2012 Isern et al.
Source: Scopus
Space competition and time delays in human range expansions. Application to the neolithic transition.
Authors: Isern, N., Fort, J. and Vander Linden, M.
Journal: PLoS One
Volume: 7
Issue: 12
Pages: e51106
eISSN: 1932-6203
DOI: 10.1371/journal.pone.0051106
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.
Source: PubMed
Space Competition and Time Delays in Human Range Expansions. Application to the Neolithic Transition
Authors: Isern, N., Fort, J. and Vander Linden, M.
Journal: PLOS ONE
Volume: 7
Issue: 12
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0051106
Source: Web of Science (Lite)
Space competition and time delays in human range expansions. Application to the neolithic transition.
Authors: Isern, N., Fort, J. and Vander Linden, M.
Journal: PloS one
Volume: 7
Issue: 12
Pages: e51106
eISSN: 1932-6203
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0051106
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.
Source: Europe PubMed Central