'Adoption' by maternal siblings in wild chimpanzees.

The adoption of unrelated orphaned infants is something chimpanzees and humans have in common. Providing parental care has fitness implications for both the adopter and orphan, and cases of adoption have thus been cited as evidence for a shared origin of an altruistic behaviour. We provide new data...

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Autores principales:	Catherine Hobaiter, Anne Marijke Schel, Kevin Langergraber, Klaus Zuberbühler
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6966f25545644acd8e10cbf91db79218
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spelling	oai:doaj.org-article:6966f25545644acd8e10cbf91db792182021-11-25T06:06:16Z'Adoption' by maternal siblings in wild chimpanzees.1932-620310.1371/journal.pone.0103777https://doaj.org/article/6966f25545644acd8e10cbf91db792182014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25084521/?tool=EBIhttps://doaj.org/toc/1932-6203The adoption of unrelated orphaned infants is something chimpanzees and humans have in common. Providing parental care has fitness implications for both the adopter and orphan, and cases of adoption have thus been cited as evidence for a shared origin of an altruistic behaviour. We provide new data on adoptions in the free-living Sonso chimpanzee community in Uganda, together with an analysis of published data from other long-term field sites. As a default pattern, we find that orphan chimpanzees do not become adopted by adult group members but wherever possible associate with each other, usually as maternal sibling pairs. This occurs even if both partners are still immature, with older individuals effectively becoming 'child household heads'. Adoption of orphans by unrelated individuals does occur but usually only if no maternal siblings or other relatives are present and only after significant delays. In conclusion, following the loss of their mother, orphaned chimpanzees preferentially associate along pre-existing social bonds, which are typically strongest amongst maternal siblings.Catherine HobaiterAnne Marijke SchelKevin LangergraberKlaus ZuberbühlerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 8, p e103777 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Catherine Hobaiter Anne Marijke Schel Kevin Langergraber Klaus Zuberbühler 'Adoption' by maternal siblings in wild chimpanzees.
description	The adoption of unrelated orphaned infants is something chimpanzees and humans have in common. Providing parental care has fitness implications for both the adopter and orphan, and cases of adoption have thus been cited as evidence for a shared origin of an altruistic behaviour. We provide new data on adoptions in the free-living Sonso chimpanzee community in Uganda, together with an analysis of published data from other long-term field sites. As a default pattern, we find that orphan chimpanzees do not become adopted by adult group members but wherever possible associate with each other, usually as maternal sibling pairs. This occurs even if both partners are still immature, with older individuals effectively becoming 'child household heads'. Adoption of orphans by unrelated individuals does occur but usually only if no maternal siblings or other relatives are present and only after significant delays. In conclusion, following the loss of their mother, orphaned chimpanzees preferentially associate along pre-existing social bonds, which are typically strongest amongst maternal siblings.
format	article
author	Catherine Hobaiter Anne Marijke Schel Kevin Langergraber Klaus Zuberbühler
author_facet	Catherine Hobaiter Anne Marijke Schel Kevin Langergraber Klaus Zuberbühler
author_sort	Catherine Hobaiter
title	'Adoption' by maternal siblings in wild chimpanzees.
title_short	'Adoption' by maternal siblings in wild chimpanzees.
title_full	'Adoption' by maternal siblings in wild chimpanzees.
title_fullStr	'Adoption' by maternal siblings in wild chimpanzees.
title_full_unstemmed	'Adoption' by maternal siblings in wild chimpanzees.
title_sort	'adoption' by maternal siblings in wild chimpanzees.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/6966f25545644acd8e10cbf91db79218
work_keys_str_mv	AT catherinehobaiter adoptionbymaternalsiblingsinwildchimpanzees AT annemarijkeschel adoptionbymaternalsiblingsinwildchimpanzees AT kevinlangergraber adoptionbymaternalsiblingsinwildchimpanzees AT klauszuberbuhler adoptionbymaternalsiblingsinwildchimpanzees
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'Adoption' by maternal siblings in wild chimpanzees.

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