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Human Migration Patterns in Yemen and Implications for Reconstructing Prehistoric Population Movements

Population migration has played an important role in human evolutionary history and in the patterning of human genetic variation. A deeper and empirically-based understanding of human migration dynamics is needed in order to interpret genetic and archaeological evidence and to accurately reconstruct...

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Autores principales: Miró-Herrans, Aida T., Al-Meeri, Ali, Mulligan, Connie J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3997431/
https://www.ncbi.nlm.nih.gov/pubmed/24759992
http://dx.doi.org/10.1371/journal.pone.0095712
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author Miró-Herrans, Aida T.
Al-Meeri, Ali
Mulligan, Connie J.
author_facet Miró-Herrans, Aida T.
Al-Meeri, Ali
Mulligan, Connie J.
author_sort Miró-Herrans, Aida T.
collection PubMed
description Population migration has played an important role in human evolutionary history and in the patterning of human genetic variation. A deeper and empirically-based understanding of human migration dynamics is needed in order to interpret genetic and archaeological evidence and to accurately reconstruct the prehistoric processes that comprise human evolutionary history. Current empirical estimates of migration include either short time frames (i.e. within one generation) or partial knowledge about migration, such as proportion of migrants or distance of migration. An analysis of migration that includes both proportion of migrants and distance, and direction over multiple generations would better inform prehistoric reconstructions. To evaluate human migration, we use GPS coordinates from the place of residence of the Yemeni individuals sampled in our study, their birthplaces and their parents' and grandparents' birthplaces to calculate the proportion of migrants, as well as the distance and direction of migration events between each generation. We test for differences in these values between the generations and identify factors that influence the probability of migration. Our results show that the proportion and distance of migration between females and males is similar within generations. In contrast, the proportion and distance of migration is significantly lower in the grandparents' generation, most likely reflecting the decreasing effect of technology. Based on our results, we calculate the proportion of migration events (0.102) and mean and median distances of migration (96 km and 26 km) for the grandparent's generation to represent early times in human evolution. These estimates can serve to set parameter values of demographic models in model-based methods of prehistoric reconstruction, such as approximate Bayesian computation. Our study provides the first empirically-based estimates of human migration over multiple generations in a developing country and these estimates are intended to enable more precise reconstruction of the demographic processes that characterized human evolution.
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spelling pubmed-39974312014-04-29 Human Migration Patterns in Yemen and Implications for Reconstructing Prehistoric Population Movements Miró-Herrans, Aida T. Al-Meeri, Ali Mulligan, Connie J. PLoS One Research Article Population migration has played an important role in human evolutionary history and in the patterning of human genetic variation. A deeper and empirically-based understanding of human migration dynamics is needed in order to interpret genetic and archaeological evidence and to accurately reconstruct the prehistoric processes that comprise human evolutionary history. Current empirical estimates of migration include either short time frames (i.e. within one generation) or partial knowledge about migration, such as proportion of migrants or distance of migration. An analysis of migration that includes both proportion of migrants and distance, and direction over multiple generations would better inform prehistoric reconstructions. To evaluate human migration, we use GPS coordinates from the place of residence of the Yemeni individuals sampled in our study, their birthplaces and their parents' and grandparents' birthplaces to calculate the proportion of migrants, as well as the distance and direction of migration events between each generation. We test for differences in these values between the generations and identify factors that influence the probability of migration. Our results show that the proportion and distance of migration between females and males is similar within generations. In contrast, the proportion and distance of migration is significantly lower in the grandparents' generation, most likely reflecting the decreasing effect of technology. Based on our results, we calculate the proportion of migration events (0.102) and mean and median distances of migration (96 km and 26 km) for the grandparent's generation to represent early times in human evolution. These estimates can serve to set parameter values of demographic models in model-based methods of prehistoric reconstruction, such as approximate Bayesian computation. Our study provides the first empirically-based estimates of human migration over multiple generations in a developing country and these estimates are intended to enable more precise reconstruction of the demographic processes that characterized human evolution. Public Library of Science 2014-04-23 /pmc/articles/PMC3997431/ /pubmed/24759992 http://dx.doi.org/10.1371/journal.pone.0095712 Text en © 2014 Miró-Herrans et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Miró-Herrans, Aida T.
Al-Meeri, Ali
Mulligan, Connie J.
Human Migration Patterns in Yemen and Implications for Reconstructing Prehistoric Population Movements
title Human Migration Patterns in Yemen and Implications for Reconstructing Prehistoric Population Movements
title_full Human Migration Patterns in Yemen and Implications for Reconstructing Prehistoric Population Movements
title_fullStr Human Migration Patterns in Yemen and Implications for Reconstructing Prehistoric Population Movements
title_full_unstemmed Human Migration Patterns in Yemen and Implications for Reconstructing Prehistoric Population Movements
title_short Human Migration Patterns in Yemen and Implications for Reconstructing Prehistoric Population Movements
title_sort human migration patterns in yemen and implications for reconstructing prehistoric population movements
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3997431/
https://www.ncbi.nlm.nih.gov/pubmed/24759992
http://dx.doi.org/10.1371/journal.pone.0095712
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