Reproductive trade-offs in extant hunter-gatherers suggest adaptive mechanism for the Neolithic expansion
Identifieur interne : 000042 ( Pmc/Corpus ); précédent : 000041; suivant : 000043Reproductive trade-offs in extant hunter-gatherers suggest adaptive mechanism for the Neolithic expansion
Auteurs : Abigail E. Page ; Sylvain Viguier ; Mark Dyble ; Daniel Smith ; Nikhil Chaudhary ; Gul Deniz Salali ; James Thompson ; Lucio Vinicius ; Ruth Mace ; Andrea Bamberg MiglianoSource :
- Proceedings of the National Academy of Sciences of the United States of America [ 0027-8424 ] ; 2016.
Abstract
The rise of agriculture during the Neolithic period has paradoxically been associated with worldwide population growth despite increases in disease and mortality. We examine the effects of sedentarization and cultivation on disease load, mortality, and fertility among Agta foragers. We report increased disease and mortality rates associated with sedentarization alongside an even larger increase in fertility associated with both participation in cultivation and sedentarization. Thus, mothers who transition to agriculture have higher reproductive fitness. We provide the first empirical evidence, to our knowledge, of an adaptive mechanism behind the expansion of agriculture, explaining how we can reconcile the Neolithic increase in morbidity and mortality with the observed demographic expansion.
Url:
DOI: 10.1073/pnas.1524031113
PubMed: 27071109
PubMed Central: 4855554
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Page</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Viguier, Sylvain" sort="Viguier, Sylvain" uniqKey="Viguier S" first="Sylvain" last="Viguier">Sylvain Viguier</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Dyble, Mark" sort="Dyble, Mark" uniqKey="Dyble M" first="Mark" last="Dyble">Mark Dyble</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Smith, Daniel" sort="Smith, Daniel" uniqKey="Smith D" first="Daniel" last="Smith">Daniel Smith</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Chaudhary, Nikhil" sort="Chaudhary, Nikhil" uniqKey="Chaudhary N" first="Nikhil" last="Chaudhary">Nikhil Chaudhary</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Salali, Gul Deniz" sort="Salali, Gul Deniz" uniqKey="Salali G" first="Gul Deniz" last="Salali">Gul Deniz Salali</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Thompson, James" sort="Thompson, James" uniqKey="Thompson J" first="James" last="Thompson">James Thompson</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Vinicius, Lucio" sort="Vinicius, Lucio" uniqKey="Vinicius L" first="Lucio" last="Vinicius">Lucio Vinicius</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Mace, Ruth" sort="Mace, Ruth" uniqKey="Mace R" first="Ruth" last="Mace">Ruth Mace</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Migliano, Andrea Bamberg" sort="Migliano, Andrea Bamberg" uniqKey="Migliano A" first="Andrea Bamberg" last="Migliano">Andrea Bamberg Migliano</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">27071109</idno><idno type="pmc">4855554</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4855554</idno><idno type="RBID">PMC:4855554</idno><idno type="doi">10.1073/pnas.1524031113</idno><date when="2016">2016</date><idno type="wicri:Area/Pmc/Corpus">000042</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000042</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Reproductive trade-offs in extant hunter-gatherers suggest adaptive mechanism for the Neolithic expansion</title><author><name sortKey="Page, Abigail E" sort="Page, Abigail E" uniqKey="Page A" first="Abigail E." last="Page">Abigail E. Page</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Viguier, Sylvain" sort="Viguier, Sylvain" uniqKey="Viguier S" first="Sylvain" last="Viguier">Sylvain Viguier</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Dyble, Mark" sort="Dyble, Mark" uniqKey="Dyble M" first="Mark" last="Dyble">Mark Dyble</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Smith, Daniel" sort="Smith, Daniel" uniqKey="Smith D" first="Daniel" last="Smith">Daniel Smith</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Chaudhary, Nikhil" sort="Chaudhary, Nikhil" uniqKey="Chaudhary N" first="Nikhil" last="Chaudhary">Nikhil Chaudhary</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Salali, Gul Deniz" sort="Salali, Gul Deniz" uniqKey="Salali G" first="Gul Deniz" last="Salali">Gul Deniz Salali</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Thompson, James" sort="Thompson, James" uniqKey="Thompson J" first="James" last="Thompson">James Thompson</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Vinicius, Lucio" sort="Vinicius, Lucio" uniqKey="Vinicius L" first="Lucio" last="Vinicius">Lucio Vinicius</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Mace, Ruth" sort="Mace, Ruth" uniqKey="Mace R" first="Ruth" last="Mace">Ruth Mace</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author><author><name sortKey="Migliano, Andrea Bamberg" sort="Migliano, Andrea Bamberg" uniqKey="Migliano A" first="Andrea Bamberg" last="Migliano">Andrea Bamberg Migliano</name><affiliation><nlm:aff id="aff1">Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></nlm:aff></affiliation></author></analytic><series><title level="j">Proceedings of the National Academy of Sciences of the United States of America</title><idno type="ISSN">0027-8424</idno><idno type="eISSN">1091-6490</idno><imprint><date when="2016">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><title>Significance</title><p>The rise of agriculture during the Neolithic period has paradoxically been associated with worldwide population growth despite increases in disease and mortality. 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Proc Natl Acad Sci U S A</journal-id><journal-id journal-id-type="iso-abbrev">Proc. Natl. Acad. Sci. U.S.A</journal-id><journal-id journal-id-type="hwp">pnas</journal-id><journal-id journal-id-type="pmc">pnas</journal-id><journal-id journal-id-type="publisher-id">PNAS</journal-id><journal-title-group><journal-title>Proceedings of the National Academy of Sciences of the United States of America</journal-title></journal-title-group><issn pub-type="ppub">0027-8424</issn><issn pub-type="epub">1091-6490</issn><publisher><publisher-name>National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">27071109</article-id><article-id pub-id-type="pmc">4855554</article-id><article-id pub-id-type="publisher-id">201524031</article-id><article-id pub-id-type="doi">10.1073/pnas.1524031113</article-id><article-categories><subj-group subj-group-type="heading"><subject>Biological Sciences</subject><subj-group><subject>Anthropology</subject></subj-group></subj-group></article-categories><title-group><article-title>Reproductive trade-offs in extant hunter-gatherers suggest adaptive mechanism for the Neolithic expansion</article-title><alt-title alt-title-type="short">Settled Agta foragers trade health for fertility</alt-title></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid" authenticated="false">http://orcid.org/0000-0002-0973-1569</contrib-id><name><surname>Page</surname><given-names>Abigail E.</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref><xref ref-type="corresp" rid="cor1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Viguier</surname><given-names>Sylvain</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref></contrib><contrib contrib-type="author"><name><surname>Dyble</surname><given-names>Mark</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref></contrib><contrib contrib-type="author"><name><surname>Smith</surname><given-names>Daniel</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid" authenticated="false">http://orcid.org/0000-0001-7528-8529</contrib-id><name><surname>Chaudhary</surname><given-names>Nikhil</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref></contrib><contrib contrib-type="author"><name><surname>Salali</surname><given-names>Gul Deniz</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref></contrib><contrib contrib-type="author"><name><surname>Thompson</surname><given-names>James</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref></contrib><contrib contrib-type="author"><name><surname>Vinicius</surname><given-names>Lucio</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid" authenticated="false">http://orcid.org/0000-0002-6137-7739</contrib-id><name><surname>Mace</surname><given-names>Ruth</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref></contrib><contrib contrib-type="author"><name><surname>Migliano</surname><given-names>Andrea Bamberg</given-names></name><xref ref-type="aff" rid="aff1"><sup>a</sup></xref></contrib><aff id="aff1"><sup>a</sup>Department of Anthropology,<institution>University College London</institution>, London WC1H 0BW,<country>United Kingdom</country></aff></contrib-group><author-notes><corresp id="cor1"><sup>1</sup>To whom correspondence should be addressed. Email: <email>abigail.page.10@ucl.ac.uk</email>.</corresp><fn fn-type="edited-by"><p>Edited by Richard B. Lee, University of Toronto, Toronto, ON, Canada, and approved March 10, 2016 (received for review December 8, 2015)</p></fn><fn fn-type="con"><p>Author contributions: A.E.P. and A.B.M. designed research; A.E.P., S.V., M.D., and D.S. performed research; A.E.P. analyzed data; and A.E.P., S.V., M.D., D.S., N.C., G.D.S., J.T., L.V., R.M., and A.B.M. wrote the paper.</p></fn></author-notes><pub-date pub-type="ppub"><day>26</day><month>4</month><year>2016</year></pub-date><pub-date pub-type="epub"><day>11</day><month>4</month><year>2016</year></pub-date><volume>113</volume><issue>17</issue><fpage>4694</fpage><lpage>4699</lpage><permissions></permissions><self-uri xlink:title="pdf" xlink:href="pnas.201524031.pdf"></self-uri><abstract abstract-type="executive-summary"><title>Significance</title><p>The rise of agriculture during the Neolithic period has paradoxically been associated with worldwide population growth despite increases in disease and mortality. We examine the effects of sedentarization and cultivation on disease load, mortality, and fertility among Agta foragers. We report increased disease and mortality rates associated with sedentarization alongside an even larger increase in fertility associated with both participation in cultivation and sedentarization. Thus, mothers who transition to agriculture have higher reproductive fitness. We provide the first empirical evidence, to our knowledge, of an adaptive mechanism behind the expansion of agriculture, explaining how we can reconcile the Neolithic increase in morbidity and mortality with the observed demographic expansion.</p></abstract><abstract><p>The Neolithic demographic transition remains a paradox, because it is associated with both higher rates of population growth and increased morbidity and mortality rates. Here we reconcile the conflicting evidence by proposing that the spread of agriculture involved a life history quality–quantity trade-off whereby mothers traded offspring survival for increased fertility, achieving greater reproductive success despite deteriorating health. We test this hypothesis by investigating fertility, mortality, health, and overall reproductive success in Agta hunter-gatherers whose camps exhibit variable levels of sedentarization, mobility, and involvement in agricultural activities. We conducted blood composition tests in 345 Agta and found that viral and helminthic infections as well as child mortality rates were significantly increased with sedentarization. Nonetheless, both age-controlled fertility and overall reproductive success were positively affected by sedentarization and participation in cultivation. Thus, we provide the first empirical evidence, to our knowledge, of an adaptive mechanism in foragers that reconciles the decline in health and child survival with the observed demographic expansion during the Neolithic.</p></abstract><kwd-group><kwd>quality–quantity trade-off</kwd><kwd>epidemiological transition</kwd><kwd>hunter-gatherers</kwd><kwd>Neolithic revolution</kwd><kwd>Neolithic demographic transition</kwd></kwd-group><funding-group><award-group id="gs1"><funding-source id="sp1">Leverhulme Trust<named-content content-type="funder-id">501100000275</named-content></funding-source><award-id rid="sp1">RP2011-R-045</award-id></award-group><award-group id="gs2"><funding-source id="sp2">EC | European Research Council (ERC)<named-content content-type="funder-id">501100000781</named-content></funding-source><award-id rid="sp2">AdG 249347</award-id></award-group></funding-group><counts><page-count count="6"></page-count></counts></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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