Contrasting effects of male immigration and rainfall on rank-related patterns of miscarriage in female olive baboons

Abstract In mammalian species with prolonged maternal investment in which high-ranking males gain disproportionate numbers of mating opportunities, males that quickly ascend the hierarchy may benefit from eliminating the dependent offspring of their competitors. In savanna baboons, high-ranking fema...

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Autores principales:	Andrea Bailey, Lynn E. Eberly, Craig Packer
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/64beae8d2b6846abb9111a568d8765ba
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spelling	oai:doaj.org-article:64beae8d2b6846abb9111a568d8765ba2021-12-02T10:54:30ZContrasting effects of male immigration and rainfall on rank-related patterns of miscarriage in female olive baboons10.1038/s41598-021-83175-32045-2322https://doaj.org/article/64beae8d2b6846abb9111a568d8765ba2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83175-3https://doaj.org/toc/2045-2322Abstract In mammalian species with prolonged maternal investment in which high-ranking males gain disproportionate numbers of mating opportunities, males that quickly ascend the hierarchy may benefit from eliminating the dependent offspring of their competitors. In savanna baboons, high-ranking females are the most profitable targets of infanticide or feticide, because their offspring have higher survival rates and their daughters reach sexual maturity at a younger age. However, such patterns may be obscured by environmental stressors that are known to exacerbate fetal losses, especially in lower-ranking females. Using 30 years of data on wild olive baboons (Papio anubis) in Gombe National Park, Tanzania, we found evidence that rapidly-rising immigrant males induced miscarriages in high-ranking females outside of drought conditions. However, miscarriage rates were largely reversed during prolonged periods of low rainfall, suggesting that low-ranking females are particularly vulnerable to low food availability and social instability. Infanticide did not emerge as a recurrent male strategy in this population, likely because of the protective behavior of resident males towards vulnerable juveniles.Andrea BaileyLynn E. EberlyCraig PackerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Andrea Bailey Lynn E. Eberly Craig Packer Contrasting effects of male immigration and rainfall on rank-related patterns of miscarriage in female olive baboons
description	Abstract In mammalian species with prolonged maternal investment in which high-ranking males gain disproportionate numbers of mating opportunities, males that quickly ascend the hierarchy may benefit from eliminating the dependent offspring of their competitors. In savanna baboons, high-ranking females are the most profitable targets of infanticide or feticide, because their offspring have higher survival rates and their daughters reach sexual maturity at a younger age. However, such patterns may be obscured by environmental stressors that are known to exacerbate fetal losses, especially in lower-ranking females. Using 30 years of data on wild olive baboons (Papio anubis) in Gombe National Park, Tanzania, we found evidence that rapidly-rising immigrant males induced miscarriages in high-ranking females outside of drought conditions. However, miscarriage rates were largely reversed during prolonged periods of low rainfall, suggesting that low-ranking females are particularly vulnerable to low food availability and social instability. Infanticide did not emerge as a recurrent male strategy in this population, likely because of the protective behavior of resident males towards vulnerable juveniles.
format	article
author	Andrea Bailey Lynn E. Eberly Craig Packer
author_facet	Andrea Bailey Lynn E. Eberly Craig Packer
author_sort	Andrea Bailey
title	Contrasting effects of male immigration and rainfall on rank-related patterns of miscarriage in female olive baboons
title_short	Contrasting effects of male immigration and rainfall on rank-related patterns of miscarriage in female olive baboons
title_full	Contrasting effects of male immigration and rainfall on rank-related patterns of miscarriage in female olive baboons
title_fullStr	Contrasting effects of male immigration and rainfall on rank-related patterns of miscarriage in female olive baboons
title_full_unstemmed	Contrasting effects of male immigration and rainfall on rank-related patterns of miscarriage in female olive baboons
title_sort	contrasting effects of male immigration and rainfall on rank-related patterns of miscarriage in female olive baboons
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/64beae8d2b6846abb9111a568d8765ba
work_keys_str_mv	AT andreabailey contrastingeffectsofmaleimmigrationandrainfallonrankrelatedpatternsofmiscarriageinfemaleolivebaboons AT lynneeberly contrastingeffectsofmaleimmigrationandrainfallonrankrelatedpatternsofmiscarriageinfemaleolivebaboons AT craigpacker contrastingeffectsofmaleimmigrationandrainfallonrankrelatedpatternsofmiscarriageinfemaleolivebaboons
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Contrasting effects of male immigration and rainfall on rank-related patterns of miscarriage in female olive baboons

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