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To pair or not to pair: Sources of social variability with white‐faced saki monkeys (Pithecia pithecia) as a case study

Intraspecific variability in social systems is gaining increased recognition in primatology. Many primate species display variability in pair‐living social organizations through incorporating extra adults into the group. While numerous models exist to explain primate pair‐living, our tools to assess...

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Autor principal: Thompson, Cynthia L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6680232/
https://www.ncbi.nlm.nih.gov/pubmed/25561183
http://dx.doi.org/10.1002/ajp.22360
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author Thompson, Cynthia L.
author_facet Thompson, Cynthia L.
author_sort Thompson, Cynthia L.
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description Intraspecific variability in social systems is gaining increased recognition in primatology. Many primate species display variability in pair‐living social organizations through incorporating extra adults into the group. While numerous models exist to explain primate pair‐living, our tools to assess how and why variation in this trait occurs are currently limited. Here I outline an approach which: (i) utilizes conceptual models to identify the selective forces driving pair‐living; (ii) outlines novel possible causes for variability in social organization; and (iii) conducts a holistic species‐level analysis of social behavior to determine the factors contributing to variation in pair‐living. A case study on white‐faced sakis (Pithecia pithecia) is used to exemplify this approach. This species lives in either male‐female pairs or groups incorporating “extra” adult males and/or females. Various conceptual models of pair‐living suggest that high same‐sex aggression toward extra‐group individuals is a key component of the white‐faced saki social system. Variable pair‐living in white‐faced sakis likely represents alternative strategies to achieve competency in this competition, in which animals experience conflicting selection pressures between achieving successful group defense and maintaining sole reproductive access to mates. Additionally, independent decisions by individuals may generate social variation by preventing other animals from adopting a social organization that maximizes fitness. White‐faced saki inter‐individual relationships and demographic patterns also lend conciliatory support to this conclusion. By utilizing both model‐level and species‐level approaches, with a consideration for potential sources of variation, researchers can gain insight into the factors generating variation in pair‐living social organizations. Am. J. Primatol. 78:561–572, 2016. © 2014 The Authors, American Journal of Primatology. published by Wiley Periodicals, Inc.
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spelling pubmed-66802322019-08-09 To pair or not to pair: Sources of social variability with white‐faced saki monkeys (Pithecia pithecia) as a case study Thompson, Cynthia L. Am J Primatol Review Articles Intraspecific variability in social systems is gaining increased recognition in primatology. Many primate species display variability in pair‐living social organizations through incorporating extra adults into the group. While numerous models exist to explain primate pair‐living, our tools to assess how and why variation in this trait occurs are currently limited. Here I outline an approach which: (i) utilizes conceptual models to identify the selective forces driving pair‐living; (ii) outlines novel possible causes for variability in social organization; and (iii) conducts a holistic species‐level analysis of social behavior to determine the factors contributing to variation in pair‐living. A case study on white‐faced sakis (Pithecia pithecia) is used to exemplify this approach. This species lives in either male‐female pairs or groups incorporating “extra” adult males and/or females. Various conceptual models of pair‐living suggest that high same‐sex aggression toward extra‐group individuals is a key component of the white‐faced saki social system. Variable pair‐living in white‐faced sakis likely represents alternative strategies to achieve competency in this competition, in which animals experience conflicting selection pressures between achieving successful group defense and maintaining sole reproductive access to mates. Additionally, independent decisions by individuals may generate social variation by preventing other animals from adopting a social organization that maximizes fitness. White‐faced saki inter‐individual relationships and demographic patterns also lend conciliatory support to this conclusion. By utilizing both model‐level and species‐level approaches, with a consideration for potential sources of variation, researchers can gain insight into the factors generating variation in pair‐living social organizations. Am. J. Primatol. 78:561–572, 2016. © 2014 The Authors, American Journal of Primatology. published by Wiley Periodicals, Inc. John Wiley and Sons Inc. 2015-01-05 2016-05 /pmc/articles/PMC6680232/ /pubmed/25561183 http://dx.doi.org/10.1002/ajp.22360 Text en © 2014 The Authors. American Journal of Primatology published by Wiley Periodicals, Inc. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Review Articles
Thompson, Cynthia L.
To pair or not to pair: Sources of social variability with white‐faced saki monkeys (Pithecia pithecia) as a case study
title To pair or not to pair: Sources of social variability with white‐faced saki monkeys (Pithecia pithecia) as a case study
title_full To pair or not to pair: Sources of social variability with white‐faced saki monkeys (Pithecia pithecia) as a case study
title_fullStr To pair or not to pair: Sources of social variability with white‐faced saki monkeys (Pithecia pithecia) as a case study
title_full_unstemmed To pair or not to pair: Sources of social variability with white‐faced saki monkeys (Pithecia pithecia) as a case study
title_short To pair or not to pair: Sources of social variability with white‐faced saki monkeys (Pithecia pithecia) as a case study
title_sort to pair or not to pair: sources of social variability with white‐faced saki monkeys (pithecia pithecia) as a case study
topic Review Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6680232/
https://www.ncbi.nlm.nih.gov/pubmed/25561183
http://dx.doi.org/10.1002/ajp.22360
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