Heritability and fitness correlates of personality in the Ache, a natural-fertility population in Paraguay
The current study assessed the heritability of personality in a traditional natural-fertility population, the Ache of eastern Paraguay. Self-reports (n = 110) and other-reports (n = 66) on the commonly used Big Five Personality Inventory (i.e., extraversion, agreeableness, conscientiousness, neuroti...
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| description | The current study assessed the heritability of personality in a traditional natural-fertility population, the Ache of eastern Paraguay. Self-reports (n = 110) and other-reports (n = 66) on the commonly used Big Five Personality Inventory (i.e., extraversion, agreeableness, conscientiousness, neuroticism, openness) were collected. Self-reports did not support the Five Factor Model developed with Western samples, and did not correlate with other-reports for three of the five measured personality factors. Heritability was assessed using factors that were consistent across self- and other-reports and factors assessed using other-reports that showed reliabilities similar to those found in Western samples. Analyses of these items in combination with a multi-generation pedigree (n = 2,132) revealed heritability estimates similar to those found in most Western samples, although we were not able to separately estimate the influence of the common environment on these traits. We also assessed relations between personality and reproductive success (RS), allowing for a test of several mechanisms that might be maintaining heritable variation in personality. Phenotypic analyses, based largely on other-reports, revealed that extraverted men had higher RS than other men, but no other dimensions of personality predicted RS in either sex. Mothers with more agreeable children had more children, and parents mated assortatively on personality. Of the evolutionary processes proposed to maintain variation in personality, assortative mating, selective neutrality, and temporal variation in selection pressures received the most support. However, the current study does not rule out other processes affecting the evolution and maintenance of individual differences in human personality. |
| doi_str_mv | 10.1371/journal.pone.0059325 |
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Self-reports (n = 110) and other-reports (n = 66) on the commonly used Big Five Personality Inventory (i.e., extraversion, agreeableness, conscientiousness, neuroticism, openness) were collected. Self-reports did not support the Five Factor Model developed with Western samples, and did not correlate with other-reports for three of the five measured personality factors. Heritability was assessed using factors that were consistent across self- and other-reports and factors assessed using other-reports that showed reliabilities similar to those found in Western samples. Analyses of these items in combination with a multi-generation pedigree (n = 2,132) revealed heritability estimates similar to those found in most Western samples, although we were not able to separately estimate the influence of the common environment on these traits. We also assessed relations between personality and reproductive success (RS), allowing for a test of several mechanisms that might be maintaining heritable variation in personality. Phenotypic analyses, based largely on other-reports, revealed that extraverted men had higher RS than other men, but no other dimensions of personality predicted RS in either sex. Mothers with more agreeable children had more children, and parents mated assortatively on personality. Of the evolutionary processes proposed to maintain variation in personality, assortative mating, selective neutrality, and temporal variation in selection pressures received the most support. However, the current study does not rule out other processes affecting the evolution and maintenance of individual differences in human personality.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0059325</identifier><identifier>PMID: 23527163</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Adult ; Assortative mating ; Behavior ; Biological Evolution ; Biology ; Breeding success ; Children ; Ecology ; Ethnic Groups - genetics ; Evolution ; Female ; Fertility ; Fitness ; Genetic Fitness - genetics ; Heritability ; Humans ; Hunter-gatherers ; Inheritance Patterns - genetics ; Male ; Marriage - psychology ; Medicine ; Models, Psychological ; Mutation ; Neurosis ; Paraguay ; Parents ; Pedigree ; Personality ; Personality - genetics ; Personality Inventory ; Personality traits ; Phenotype ; Phenotypic variations ; Population ; Quantitative genetics ; Regression Analysis ; Reproduction ; Reproductive fitness ; Schizophrenia ; Social and Behavioral Sciences ; Social change ; Social psychology ; Studies ; Temporal variations</subject><ispartof>PloS one, 2013-03, Vol.8 (3), p.e59325-e59325</ispartof><rights>COPYRIGHT 2013 Public Library of Science</rights><rights>2013 Bailey et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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Self-reports (n = 110) and other-reports (n = 66) on the commonly used Big Five Personality Inventory (i.e., extraversion, agreeableness, conscientiousness, neuroticism, openness) were collected. Self-reports did not support the Five Factor Model developed with Western samples, and did not correlate with other-reports for three of the five measured personality factors. Heritability was assessed using factors that were consistent across self- and other-reports and factors assessed using other-reports that showed reliabilities similar to those found in Western samples. Analyses of these items in combination with a multi-generation pedigree (n = 2,132) revealed heritability estimates similar to those found in most Western samples, although we were not able to separately estimate the influence of the common environment on these traits. We also assessed relations between personality and reproductive success (RS), allowing for a test of several mechanisms that might be maintaining heritable variation in personality. Phenotypic analyses, based largely on other-reports, revealed that extraverted men had higher RS than other men, but no other dimensions of personality predicted RS in either sex. Mothers with more agreeable children had more children, and parents mated assortatively on personality. Of the evolutionary processes proposed to maintain variation in personality, assortative mating, selective neutrality, and temporal variation in selection pressures received the most support. However, the current study does not rule out other processes affecting the evolution and maintenance of individual differences in human personality.</description><subject>Adult</subject><subject>Assortative mating</subject><subject>Behavior</subject><subject>Biological Evolution</subject><subject>Biology</subject><subject>Breeding success</subject><subject>Children</subject><subject>Ecology</subject><subject>Ethnic Groups - genetics</subject><subject>Evolution</subject><subject>Female</subject><subject>Fertility</subject><subject>Fitness</subject><subject>Genetic Fitness - genetics</subject><subject>Heritability</subject><subject>Humans</subject><subject>Hunter-gatherers</subject><subject>Inheritance Patterns - genetics</subject><subject>Male</subject><subject>Marriage - psychology</subject><subject>Medicine</subject><subject>Models, Psychological</subject><subject>Mutation</subject><subject>Neurosis</subject><subject>Paraguay</subject><subject>Parents</subject><subject>Pedigree</subject><subject>Personality</subject><subject>Personality - genetics</subject><subject>Personality Inventory</subject><subject>Personality traits</subject><subject>Phenotype</subject><subject>Phenotypic variations</subject><subject>Population</subject><subject>Quantitative genetics</subject><subject>Regression Analysis</subject><subject>Reproduction</subject><subject>Reproductive fitness</subject><subject>Schizophrenia</subject><subject>Social and Behavioral Sciences</subject><subject>Social change</subject><subject>Social psychology</subject><subject>Studies</subject><subject>Temporal variations</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><sourceid>DOA</sourceid><recordid>eNqNk1-L1DAUxYso7rr6DUQLgig4Y5q0afMiDIu6Awsr_nsNt-nNTIZO001Scb69qdNdtrIP0oeU9HfOyb3NTZLnGVlmrMze7-zgOmiXve1wSUghGC0eJKdZXBecEvbwzvtJ8sT7XYRYxfnj5ISygpYZZ6fJ7gKdCVCb1oRDCl2TahM69D5V1jlsIaBPrU57dN7GuJEyXRq2mK7UFt-lkHYQBgftQqMLR5ve9kNUGtuN7BdwsBng8DR5pKH1-Gxaz5Ifnz5-P79YXF59Xp-vLheKCxoWldaNFsCQN0QAyes6QyyhFqAKoHVVE6hpJRQtqiIvueaN0hxJ1jBNCSkpO0teHn371no5tcnLjDFSVaIgIhLrI9FY2MnemT24g7Rg5N8N6zYSYi2qRYm8LnPe5FnVVHnGm1qJGJSXgjYsp6KOXh-mtKHeY6OwC7EZM9P5l85s5cb-kowTSvh43DeTgbPXA_og98YrbFvo0A7juTMRMV5UEX31D3p_dRO1gViA6bSNuWo0lau8rCgpeTXGLu-h4tPg3qh4p7SJ-zPB25kgMgF_hw0M3sv1t6__z179nLOv77BbhDZsvW2H8fr4OZgfQeWs9w71bZMzIseRuOmGHEdCTiMRZS_u_qBb0c0MsD_Fcgfc</recordid><startdate>20130319</startdate><enddate>20130319</enddate><creator>Bailey, Drew H</creator><creator>Walker, Robert S</creator><creator>Blomquist, Gregory E</creator><creator>Hill, Kim R</creator><creator>Hurtado, A Magdalena</creator><creator>Geary, David C</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>IOV</scope><scope>ISR</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope></search><sort><creationdate>20130319</creationdate><title>Heritability and fitness correlates of personality in the Ache, a natural-fertility population in Paraguay</title><author>Bailey, Drew H ; Walker, Robert S ; Blomquist, Gregory E ; Hill, Kim R ; Hurtado, A Magdalena ; Geary, David C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c692t-8ffdf9a3e6d09a04bb1ee7ab9ac5a2b8b0ab289c2585476f6dcf6e01d3f200723</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Adult</topic><topic>Assortative mating</topic><topic>Behavior</topic><topic>Biological Evolution</topic><topic>Biology</topic><topic>Breeding success</topic><topic>Children</topic><topic>Ecology</topic><topic>Ethnic Groups - 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bailey, Drew H</au><au>Walker, Robert S</au><au>Blomquist, Gregory E</au><au>Hill, Kim R</au><au>Hurtado, A Magdalena</au><au>Geary, David C</au><au>Mesoudi, Alex</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Heritability and fitness correlates of personality in the Ache, a natural-fertility population in Paraguay</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2013-03-19</date><risdate>2013</risdate><volume>8</volume><issue>3</issue><spage>e59325</spage><epage>e59325</epage><pages>e59325-e59325</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>The current study assessed the heritability of personality in a traditional natural-fertility population, the Ache of eastern Paraguay. Self-reports (n = 110) and other-reports (n = 66) on the commonly used Big Five Personality Inventory (i.e., extraversion, agreeableness, conscientiousness, neuroticism, openness) were collected. Self-reports did not support the Five Factor Model developed with Western samples, and did not correlate with other-reports for three of the five measured personality factors. Heritability was assessed using factors that were consistent across self- and other-reports and factors assessed using other-reports that showed reliabilities similar to those found in Western samples. Analyses of these items in combination with a multi-generation pedigree (n = 2,132) revealed heritability estimates similar to those found in most Western samples, although we were not able to separately estimate the influence of the common environment on these traits. We also assessed relations between personality and reproductive success (RS), allowing for a test of several mechanisms that might be maintaining heritable variation in personality. Phenotypic analyses, based largely on other-reports, revealed that extraverted men had higher RS than other men, but no other dimensions of personality predicted RS in either sex. Mothers with more agreeable children had more children, and parents mated assortatively on personality. Of the evolutionary processes proposed to maintain variation in personality, assortative mating, selective neutrality, and temporal variation in selection pressures received the most support. However, the current study does not rule out other processes affecting the evolution and maintenance of individual differences in human personality.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>23527163</pmid><doi>10.1371/journal.pone.0059325</doi><tpages>e59325</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adult Assortative mating Behavior Biological Evolution Biology Breeding success Children Ecology Ethnic Groups - genetics Evolution Female Fertility Fitness Genetic Fitness - genetics Heritability Humans Hunter-gatherers Inheritance Patterns - genetics Male Marriage - psychology Medicine Models, Psychological Mutation Neurosis Paraguay Parents Pedigree Personality Personality - genetics Personality Inventory Personality traits Phenotype Phenotypic variations Population Quantitative genetics Regression Analysis Reproduction Reproductive fitness Schizophrenia Social and Behavioral Sciences Social change Social psychology Studies Temporal variations |
| title | Heritability and fitness correlates of personality in the Ache, a natural-fertility population in Paraguay |
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