Avian sibling cannibalism: Hoopoe mothers regularly use their last hatched nestlings to feed older siblings

Sibling cannibalism is relatively common in nature, but its evolution in birds and certain other vertebrates with extended parental care had been discarded. Here, however, we demonstrate its regular occurrence in two European populations of the Eurasian hoopoe (Upupa epops) and explore possible adap...

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Autores: Soler, Juan José, Martín-Vivaldi, Manuel, Nuhlíčková, Soňa, Ruiz-Castellano, Cristina, Mazorra-Alonso, Mónica, Martínez-Renau, Ester, Eckenfellner, Manfred, Svetlík, Ján, Hoi, Herbert
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/349066
Acesso em linha:http://hdl.handle.net/10261/349066
https://api.elsevier.com/content/abstract/scopus_id/85125613003
Access Level:acceso abierto
Palavra-chave:Brood reduction
Clutch size
Hatching asynchrony
Ice-box hypothesis
Infanticide
Siblicide
Sibling hierarchy
Upupa epops
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spelling Avian sibling cannibalism: Hoopoe mothers regularly use their last hatched nestlings to feed older siblingsSoler, Juan JoséMartín-Vivaldi, ManuelNuhlíčková, SoňaRuiz-Castellano, CristinaMazorra-Alonso, MónicaMartínez-Renau, EsterEckenfellner, ManfredSvetlík, JánHoi, HerbertBrood reductionClutch sizeHatching asynchronyIce-box hypothesisInfanticideSiblicideSibling hierarchyUpupa epopsSibling cannibalism is relatively common in nature, but its evolution in birds and certain other vertebrates with extended parental care had been discarded. Here, however, we demonstrate its regular occurrence in two European populations of the Eurasian hoopoe (Upupa epops) and explore possible adaptive and non-adaptive explanations. Results showed that sibling cannibalism was more frequently detected in Spain (51.7%) than in Austria (5.9%). In these two populations, the hoopoes laid similar clutch sizes, resulting in similar fledging production, but hatching failures were more frequent in the northern population. Consequently, having more nestlings condemned to die in the southern population may explain the higher incidence of sibling cannibalism. In accordance with this interpretation, hatching span and failure, but not breeding date, explained the probability of sibling cannibalism in the Spanish hoopoes, while all three variables predicted brood reduction intensity. Furthermore, experimental food supply reduced the probability of sibling cannibalism, but not the intensity of brood reduction. Finally, females allocated fewer resources to the smallest nestlings when they were going to starve, but not necessarily when they were going to be used as food for their siblings. These results suggest that hoopoes produce extra eggs that, in the case of reduced hatching failure and food scarcity, produce nestlings that are used to feed older siblings. These findings provide the first evidence that sibling cannibalism occurs regularly in a bird species, thus expanding our evolutionary understanding of clutch size, hatching asynchrony, parent-offspring conflict, infanticide, and sibling cannibalism in the animal kingdom.This study was supported by the Spanish Ministerio de Ciencia, Innovación y Universidades and European (FEDER) Funds (CGL2017-83103-P)Peer reviewedScience PressMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/349066https://api.elsevier.com/content/abstract/scopus_id/85125613003reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2017-83103-PSoler, Juan José; Martín-Vivaldi, Manuel; Nuhlíčková, Soňa; Ruiz-Castellano, Cristina; Mazorra-Alonso, Mónica; Martínez-Renau, Ester; Eckenfellner, Manfred; Svetlík, Ján; Hoi, Herbert; 2021; data set.xlsx[Dataset]; Figshare; https://doi.org/10.24272/j.issn.2095-8137.2021.434https://doi.org/10.24272/j.issn.2095-8137.2021.434Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3490662026-05-22T06:33:51Z
dc.title.none.fl_str_mv Avian sibling cannibalism: Hoopoe mothers regularly use their last hatched nestlings to feed older siblings
title Avian sibling cannibalism: Hoopoe mothers regularly use their last hatched nestlings to feed older siblings
spellingShingle Avian sibling cannibalism: Hoopoe mothers regularly use their last hatched nestlings to feed older siblings
Soler, Juan José
Brood reduction
Clutch size
Hatching asynchrony
Ice-box hypothesis
Infanticide
Siblicide
Sibling hierarchy
Upupa epops
title_short Avian sibling cannibalism: Hoopoe mothers regularly use their last hatched nestlings to feed older siblings
title_full Avian sibling cannibalism: Hoopoe mothers regularly use their last hatched nestlings to feed older siblings
title_fullStr Avian sibling cannibalism: Hoopoe mothers regularly use their last hatched nestlings to feed older siblings
title_full_unstemmed Avian sibling cannibalism: Hoopoe mothers regularly use their last hatched nestlings to feed older siblings
title_sort Avian sibling cannibalism: Hoopoe mothers regularly use their last hatched nestlings to feed older siblings
dc.creator.none.fl_str_mv Soler, Juan José
Martín-Vivaldi, Manuel
Nuhlíčková, Soňa
Ruiz-Castellano, Cristina
Mazorra-Alonso, Mónica
Martínez-Renau, Ester
Eckenfellner, Manfred
Svetlík, Ján
Hoi, Herbert
author Soler, Juan José
author_facet Soler, Juan José
Martín-Vivaldi, Manuel
Nuhlíčková, Soňa
Ruiz-Castellano, Cristina
Mazorra-Alonso, Mónica
Martínez-Renau, Ester
Eckenfellner, Manfred
Svetlík, Ján
Hoi, Herbert
author_role author
author2 Martín-Vivaldi, Manuel
Nuhlíčková, Soňa
Ruiz-Castellano, Cristina
Mazorra-Alonso, Mónica
Martínez-Renau, Ester
Eckenfellner, Manfred
Svetlík, Ján
Hoi, Herbert
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Brood reduction
Clutch size
Hatching asynchrony
Ice-box hypothesis
Infanticide
Siblicide
Sibling hierarchy
Upupa epops
topic Brood reduction
Clutch size
Hatching asynchrony
Ice-box hypothesis
Infanticide
Siblicide
Sibling hierarchy
Upupa epops
description Sibling cannibalism is relatively common in nature, but its evolution in birds and certain other vertebrates with extended parental care had been discarded. Here, however, we demonstrate its regular occurrence in two European populations of the Eurasian hoopoe (Upupa epops) and explore possible adaptive and non-adaptive explanations. Results showed that sibling cannibalism was more frequently detected in Spain (51.7%) than in Austria (5.9%). In these two populations, the hoopoes laid similar clutch sizes, resulting in similar fledging production, but hatching failures were more frequent in the northern population. Consequently, having more nestlings condemned to die in the southern population may explain the higher incidence of sibling cannibalism. In accordance with this interpretation, hatching span and failure, but not breeding date, explained the probability of sibling cannibalism in the Spanish hoopoes, while all three variables predicted brood reduction intensity. Furthermore, experimental food supply reduced the probability of sibling cannibalism, but not the intensity of brood reduction. Finally, females allocated fewer resources to the smallest nestlings when they were going to starve, but not necessarily when they were going to be used as food for their siblings. These results suggest that hoopoes produce extra eggs that, in the case of reduced hatching failure and food scarcity, produce nestlings that are used to feed older siblings. These findings provide the first evidence that sibling cannibalism occurs regularly in a bird species, thus expanding our evolutionary understanding of clutch size, hatching asynchrony, parent-offspring conflict, infanticide, and sibling cannibalism in the animal kingdom.
publishDate 2022
dc.date.none.fl_str_mv 2022
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/349066
https://api.elsevier.com/content/abstract/scopus_id/85125613003
url http://hdl.handle.net/10261/349066
https://api.elsevier.com/content/abstract/scopus_id/85125613003
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2017-83103-P
Soler, Juan José; Martín-Vivaldi, Manuel; Nuhlíčková, Soňa; Ruiz-Castellano, Cristina; Mazorra-Alonso, Mónica; Martínez-Renau, Ester; Eckenfellner, Manfred; Svetlík, Ján; Hoi, Herbert; 2021; data set.xlsx[Dataset]; Figshare; https://doi.org/10.24272/j.issn.2095-8137.2021.434
https://doi.org/10.24272/j.issn.2095-8137.2021.434
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Science Press
publisher.none.fl_str_mv Science Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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