Experimentally impaired female condition does not affect biliverdin-based egg colour

It has been proposed that blue-green egg coloration is a condition-dependent female sexual trait that may modify paternal care in a post-mating sexual selection scenario. This pattern may arise because the pigment responsible for eggshell colouration (biliverdin) may be a costly and limited resource...

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Detalles Bibliográficos
Autores: D'Arpa, Stefania R., Gómez-Llanos, Eduardo, Gil, Diego, Pérez-Rodríguez, Lorenzo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/265829
Acceso en línea:http://hdl.handle.net/10261/265829
Access Level:acceso abierto
Palabra clave:Eggshell coloration
Handicapping manipulation
Oxidative stress
Sexual selection
Sturnus unicolor
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spelling Experimentally impaired female condition does not affect biliverdin-based egg colourD'Arpa, Stefania R.Gómez-Llanos, EduardoGil, DiegoPérez-Rodríguez, LorenzoEggshell colorationHandicapping manipulationOxidative stressSexual selectionSturnus unicolorIt has been proposed that blue-green egg coloration is a condition-dependent female sexual trait that may modify paternal care in a post-mating sexual selection scenario. This pattern may arise because the pigment responsible for eggshell colouration (biliverdin) may be a costly and limited resource, whose availability is linked to female health state. Thus, it can be predicted that females whose condition is compromised should be constrained in their capacity to deposit biliverdin in the eggshell, thus producing paler clutches. To test this hypothesis, we performed a handicapping experiment by clipping some feathers of female spotless starlings before egg laying and measuring the colour of their clutches. We expected the handicapping treatment to increase flying costs, impairing female overall condition and resulting in paler clutches. Our experi ment was successful in lowering the weight gain of handicapped with respect to control females. However, in contrast to our expectations, we found no effect of the treatment on eggshell colouration. Eggshell colour varied along the laying order, with initial eggs of the laying sequence being relatively paler than the rest of the clutch, but this pattern was not different between experimental groups. Despite a very similar methodology, our results differ from a previous study on the same species and offer no support to the post mating sexual selected hypothesis, questioning the general applicability of the sexual selection role of eggshell coloration.This research was jointly funded by research grants from the Spanish Ministerio de Ciencia, Innovación y Universidades to LP-R (PGC2018-099596-B-I00, co-financed by MCIN/AEI/10.13039/501100011033 and by ERDF - A way of making Europe and DG (CGL2017-83843-C2-1-P).Peer reviewedNordic Ecological Society OikosJohn Wiley & SonsMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/265829reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-099596-B-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2017-83843-C2-1-Phttps://doi.org/10.1111/jav.02913Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2658292026-05-22T06:33:51Z
dc.title.none.fl_str_mv Experimentally impaired female condition does not affect biliverdin-based egg colour
title Experimentally impaired female condition does not affect biliverdin-based egg colour
spellingShingle Experimentally impaired female condition does not affect biliverdin-based egg colour
D'Arpa, Stefania R.
Eggshell coloration
Handicapping manipulation
Oxidative stress
Sexual selection
Sturnus unicolor
title_short Experimentally impaired female condition does not affect biliverdin-based egg colour
title_full Experimentally impaired female condition does not affect biliverdin-based egg colour
title_fullStr Experimentally impaired female condition does not affect biliverdin-based egg colour
title_full_unstemmed Experimentally impaired female condition does not affect biliverdin-based egg colour
title_sort Experimentally impaired female condition does not affect biliverdin-based egg colour
dc.creator.none.fl_str_mv D'Arpa, Stefania R.
Gómez-Llanos, Eduardo
Gil, Diego
Pérez-Rodríguez, Lorenzo
author D'Arpa, Stefania R.
author_facet D'Arpa, Stefania R.
Gómez-Llanos, Eduardo
Gil, Diego
Pérez-Rodríguez, Lorenzo
author_role author
author2 Gómez-Llanos, Eduardo
Gil, Diego
Pérez-Rodríguez, Lorenzo
author2_role 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 Eggshell coloration
Handicapping manipulation
Oxidative stress
Sexual selection
Sturnus unicolor
topic Eggshell coloration
Handicapping manipulation
Oxidative stress
Sexual selection
Sturnus unicolor
description It has been proposed that blue-green egg coloration is a condition-dependent female sexual trait that may modify paternal care in a post-mating sexual selection scenario. This pattern may arise because the pigment responsible for eggshell colouration (biliverdin) may be a costly and limited resource, whose availability is linked to female health state. Thus, it can be predicted that females whose condition is compromised should be constrained in their capacity to deposit biliverdin in the eggshell, thus producing paler clutches. To test this hypothesis, we performed a handicapping experiment by clipping some feathers of female spotless starlings before egg laying and measuring the colour of their clutches. We expected the handicapping treatment to increase flying costs, impairing female overall condition and resulting in paler clutches. Our experi ment was successful in lowering the weight gain of handicapped with respect to control females. However, in contrast to our expectations, we found no effect of the treatment on eggshell colouration. Eggshell colour varied along the laying order, with initial eggs of the laying sequence being relatively paler than the rest of the clutch, but this pattern was not different between experimental groups. Despite a very similar methodology, our results differ from a previous study on the same species and offer no support to the post mating sexual selected hypothesis, questioning the general applicability of the sexual selection role of eggshell coloration.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
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/10261/265829
url http://hdl.handle.net/10261/265829
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-099596-B-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2017-83843-C2-1-P
https://doi.org/10.1111/jav.02913
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Nordic Ecological Society Oikos
John Wiley & Sons
publisher.none.fl_str_mv Nordic Ecological Society Oikos
John Wiley & Sons
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 15.81155

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