Offspring production among the extended relatives of Samoan men and fa'afafine.

Androphilia refers to sexual attraction to adult males, whereas gynephilia refers to sexual attraction to adult females. Male androphilia is an evolutionary paradox. Its development is at least partially influenced by genetic factors, yet male androphiles exhibit lower reproductive output, thus rais...

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Autores principales:	Doug P VanderLaan, Deanna L Forrester, Lanna J Petterson, Paul L Vasey
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7f54414d6b3b4af991387772d0dfa5d0
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spelling	oai:doaj.org-article:7f54414d6b3b4af991387772d0dfa5d02021-11-18T07:20:26ZOffspring production among the extended relatives of Samoan men and fa'afafine.1932-620310.1371/journal.pone.0036088https://doaj.org/article/7f54414d6b3b4af991387772d0dfa5d02012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22558342/?tool=EBIhttps://doaj.org/toc/1932-6203Androphilia refers to sexual attraction to adult males, whereas gynephilia refers to sexual attraction to adult females. Male androphilia is an evolutionary paradox. Its development is at least partially influenced by genetic factors, yet male androphiles exhibit lower reproductive output, thus raising the question of how genetic factors underlying its development persist. The sexual antagonism hypothesis posits that the fitness costs associated with genetic factors underlying male androphilia are offset because these same factors lead to elevated reproduction on the part of the female relatives of androphilic males. Western samples drawn from low fertility populations have yielded inconsistent results when testing this hypothesis. Some studies documented elevated reproduction among the matrilineal female kin of androphilic males, whereas others found such effects in the paternal line. Samoa is a high-fertility population in which individuals reproduce closer to their maximum capacities. This study compared the reproductive output of the paternal and maternal line grandmothers, aunts, and uncles of 86 Samoan androphilic males, known locally as fa'afafine, and 86 Samoan gynephilic males. Reproductive output was elevated in the paternal and maternal line grandmothers, but not aunts or uncles, of fa'afafine. These findings are consistent with the sexual antagonism hypothesis and suggest that male androphilia is associated with elevated reproduction among extended relatives in both the maternal and paternal line. Discussion focuses on how this study, in conjunction with the broader literature, informs various models for the evolution of male androphilia via elevated reproduction on the part of female kin.Doug P VanderLaanDeanna L ForresterLanna J PettersonPaul L VaseyPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 4, p e36088 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Doug P VanderLaan Deanna L Forrester Lanna J Petterson Paul L Vasey Offspring production among the extended relatives of Samoan men and fa'afafine.
description	Androphilia refers to sexual attraction to adult males, whereas gynephilia refers to sexual attraction to adult females. Male androphilia is an evolutionary paradox. Its development is at least partially influenced by genetic factors, yet male androphiles exhibit lower reproductive output, thus raising the question of how genetic factors underlying its development persist. The sexual antagonism hypothesis posits that the fitness costs associated with genetic factors underlying male androphilia are offset because these same factors lead to elevated reproduction on the part of the female relatives of androphilic males. Western samples drawn from low fertility populations have yielded inconsistent results when testing this hypothesis. Some studies documented elevated reproduction among the matrilineal female kin of androphilic males, whereas others found such effects in the paternal line. Samoa is a high-fertility population in which individuals reproduce closer to their maximum capacities. This study compared the reproductive output of the paternal and maternal line grandmothers, aunts, and uncles of 86 Samoan androphilic males, known locally as fa'afafine, and 86 Samoan gynephilic males. Reproductive output was elevated in the paternal and maternal line grandmothers, but not aunts or uncles, of fa'afafine. These findings are consistent with the sexual antagonism hypothesis and suggest that male androphilia is associated with elevated reproduction among extended relatives in both the maternal and paternal line. Discussion focuses on how this study, in conjunction with the broader literature, informs various models for the evolution of male androphilia via elevated reproduction on the part of female kin.
format	article
author	Doug P VanderLaan Deanna L Forrester Lanna J Petterson Paul L Vasey
author_facet	Doug P VanderLaan Deanna L Forrester Lanna J Petterson Paul L Vasey
author_sort	Doug P VanderLaan
title	Offspring production among the extended relatives of Samoan men and fa'afafine.
title_short	Offspring production among the extended relatives of Samoan men and fa'afafine.
title_full	Offspring production among the extended relatives of Samoan men and fa'afafine.
title_fullStr	Offspring production among the extended relatives of Samoan men and fa'afafine.
title_full_unstemmed	Offspring production among the extended relatives of Samoan men and fa'afafine.
title_sort	offspring production among the extended relatives of samoan men and fa'afafine.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/7f54414d6b3b4af991387772d0dfa5d0
work_keys_str_mv	AT dougpvanderlaan offspringproductionamongtheextendedrelativesofsamoanmenandfaafafine AT deannalforrester offspringproductionamongtheextendedrelativesofsamoanmenandfaafafine AT lannajpetterson offspringproductionamongtheextendedrelativesofsamoanmenandfaafafine AT paullvasey offspringproductionamongtheextendedrelativesofsamoanmenandfaafafine
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Offspring production among the extended relatives of Samoan men and fa'afafine.

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