Alcohol consumption, life history and extinction risk among Raute hunter–gatherers from Nepal

Hunter–gatherer populations underwent a mass extinction in the Neolithic, and in present times face challenges such as explicit sedentarisation policies. An exception is in Nepal, where the nomadic Raute people receive monthly governmental individual payments. One consequence of the money transfers...

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Main Authors: Inez Derkx, Gina Menn, Sudarshan Subedi, Nagendra Upadhyaya, Prajwal Rajbhandari, Anita Gyawali, Ruth Mace, Jaume Bertranpetit, Lucio Vinicius, Andrea Bamberg Migliano
Format: Article
Language:English
Published: Cambridge University Press 2024-01-01
Series:Evolutionary Human Sciences
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Online Access:https://www.cambridge.org/core/product/identifier/S2513843X24000422/type/journal_article
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author Inez Derkx
Gina Menn
Sudarshan Subedi
Nagendra Upadhyaya
Prajwal Rajbhandari
Anita Gyawali
Ruth Mace
Jaume Bertranpetit
Lucio Vinicius
Andrea Bamberg Migliano
author_facet Inez Derkx
Gina Menn
Sudarshan Subedi
Nagendra Upadhyaya
Prajwal Rajbhandari
Anita Gyawali
Ruth Mace
Jaume Bertranpetit
Lucio Vinicius
Andrea Bamberg Migliano
author_sort Inez Derkx
collection DOAJ
description Hunter–gatherer populations underwent a mass extinction in the Neolithic, and in present times face challenges such as explicit sedentarisation policies. An exception is in Nepal, where the nomadic Raute people receive monthly governmental individual payments. One consequence of the money transfers has been a significant increase in alcohol consumption, with nearly all individuals drinking industrially produced alcohol. Here we investigate the Raute demography based on a full census of 144 individuals. We show that the Raute exhibit the short life expectancies typical of other hunter–gatherer populations from Africa, Asia and America. Bayesian survival trajectory analysis demonstrated that heavy drinking by either parent substantially reduces offspring survival to age 15. Bayesian regressions revealed a significant effect of heavy drinking on maternal fertility by decreasing the number of living children and reducing the proportion of live children at the end of maternal reproductive life. Although the absence of data prior to monetary support precludes a direct assessment of long-term demographic trends, relatively stable population sizes over the last decades and a fertility rate close to the replacement rate rule out an imminent population crash. Further studies are required to elucidate the Rautes’ origins and relationship with other nomadic people in the region.
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spelling doaj-art-76d49ef03df84772a2f7cb9b1fc381fe2025-08-20T02:31:12ZengCambridge University PressEvolutionary Human Sciences2513-843X2024-01-01610.1017/ehs.2024.42Alcohol consumption, life history and extinction risk among Raute hunter–gatherers from NepalInez Derkx0https://orcid.org/0000-0002-6889-494XGina Menn1Sudarshan Subedi2Nagendra Upadhyaya3Prajwal Rajbhandari4Anita Gyawali5Ruth Mace6https://orcid.org/0000-0002-6137-7739Jaume Bertranpetit7Lucio Vinicius8https://orcid.org/0000-0002-9396-3249Andrea Bamberg Migliano9https://orcid.org/0000-0003-4364-2735Department of Evolutionary Anthropology, University of Zurich, Zurich, SwitzerlandDepartment of Evolutionary Anthropology, University of Zurich, Zurich, SwitzerlandTribhuvan University, Kathmandu, NepalCommittee to Study the Social, Cultural, Economic and Geographical Habitat of Raute Community, NepalResearch Institute for Bioscience and Biotechnology, Lalitpur, NepalCommittee to Study the Social, Cultural, Economic and Geographical Habitat of Raute Community, NepalDepartment of Anthropology, University College London, London, UKInstitut de Biologia Evolutiva (CSIC-Universitat Pompeu Fabra), Barcelona, SpainDepartment of Evolutionary Anthropology, University of Zurich, Zurich, SwitzerlandDepartment of Evolutionary Anthropology, University of Zurich, Zurich, SwitzerlandHunter–gatherer populations underwent a mass extinction in the Neolithic, and in present times face challenges such as explicit sedentarisation policies. An exception is in Nepal, where the nomadic Raute people receive monthly governmental individual payments. One consequence of the money transfers has been a significant increase in alcohol consumption, with nearly all individuals drinking industrially produced alcohol. Here we investigate the Raute demography based on a full census of 144 individuals. We show that the Raute exhibit the short life expectancies typical of other hunter–gatherer populations from Africa, Asia and America. Bayesian survival trajectory analysis demonstrated that heavy drinking by either parent substantially reduces offspring survival to age 15. Bayesian regressions revealed a significant effect of heavy drinking on maternal fertility by decreasing the number of living children and reducing the proportion of live children at the end of maternal reproductive life. Although the absence of data prior to monetary support precludes a direct assessment of long-term demographic trends, relatively stable population sizes over the last decades and a fertility rate close to the replacement rate rule out an imminent population crash. Further studies are required to elucidate the Rautes’ origins and relationship with other nomadic people in the region.https://www.cambridge.org/core/product/identifier/S2513843X24000422/type/journal_articleHunter–gathererssedentarisationRauteNepalalcohol
spellingShingle Inez Derkx
Gina Menn
Sudarshan Subedi
Nagendra Upadhyaya
Prajwal Rajbhandari
Anita Gyawali
Ruth Mace
Jaume Bertranpetit
Lucio Vinicius
Andrea Bamberg Migliano
Alcohol consumption, life history and extinction risk among Raute hunter–gatherers from Nepal
Evolutionary Human Sciences
Hunter–gatherers
sedentarisation
Raute
Nepal
alcohol
title Alcohol consumption, life history and extinction risk among Raute hunter–gatherers from Nepal
title_full Alcohol consumption, life history and extinction risk among Raute hunter–gatherers from Nepal
title_fullStr Alcohol consumption, life history and extinction risk among Raute hunter–gatherers from Nepal
title_full_unstemmed Alcohol consumption, life history and extinction risk among Raute hunter–gatherers from Nepal
title_short Alcohol consumption, life history and extinction risk among Raute hunter–gatherers from Nepal
title_sort alcohol consumption life history and extinction risk among raute hunter gatherers from nepal
topic Hunter–gatherers
sedentarisation
Raute
Nepal
alcohol
url https://www.cambridge.org/core/product/identifier/S2513843X24000422/type/journal_article
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