Sex allocation from an owl perspective: clutch order could determine brood sex to reduce sibling aggression in the Eagle Owl Bubo bubo

et al.

Detalles Bibliográficos
Autores: Penteriani, Vincenzo, Delgado Sánchez, María del Mar, Ortego, Joaquín, Talavera, Olga M.
Tipo de recurso: artículo
Fecha de publicación:2010
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/62269
Acceso en línea:http://hdl.handle.net/10261/62269
Access Level:acceso abierto
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spelling Sex allocation from an owl perspective: clutch order could determine brood sex to reduce sibling aggression in the Eagle Owl Bubo buboPenteriani, VincenzoDelgado Sánchez, María del MarOrtego, JoaquínTalavera, Olga M.et al.Hatching asynchrony in altricial bird species occurs if incubation starts before clutch completion. It determines differential within-brood growth, which may result in a competitive and developmental hierarchy among siblings. As a consequence, asymmetric sibling competition frequently results in post-hatching mortality of the last-hatched offspring. Because nestling hierarchy is not necessarily adaptive, species that are able to raise large broods should have evolved mechanisms to reduce within-brood mortality due to sibling competition. One mechanism to reduce offspring mortality could be to favour the occurrence of the larger sex among late-laid chicks. We explored this possibility by studying the sex allocation of 349 Eagle Owl (Bubo bubo) chicks from 137 broods, as a function of clutch size and order. In broods of four chicks, parents seemed to invest in the less energetically expensive sex (male) at the third position, and females (the larger sex) as the last, and therefore smallest, chick in the brood. This strategy should reduce asymmetric sibling competition: the relative position of chicks of each sex within the brood is likely to be crucial for maximizing the success of clutches.Peer ReviewedFinnish Ornithological Society2012201220102012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/62269reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/622692026-05-22T06:33:51Z
dc.title.none.fl_str_mv Sex allocation from an owl perspective: clutch order could determine brood sex to reduce sibling aggression in the Eagle Owl Bubo bubo
title Sex allocation from an owl perspective: clutch order could determine brood sex to reduce sibling aggression in the Eagle Owl Bubo bubo
spellingShingle Sex allocation from an owl perspective: clutch order could determine brood sex to reduce sibling aggression in the Eagle Owl Bubo bubo
Penteriani, Vincenzo
title_short Sex allocation from an owl perspective: clutch order could determine brood sex to reduce sibling aggression in the Eagle Owl Bubo bubo
title_full Sex allocation from an owl perspective: clutch order could determine brood sex to reduce sibling aggression in the Eagle Owl Bubo bubo
title_fullStr Sex allocation from an owl perspective: clutch order could determine brood sex to reduce sibling aggression in the Eagle Owl Bubo bubo
title_full_unstemmed Sex allocation from an owl perspective: clutch order could determine brood sex to reduce sibling aggression in the Eagle Owl Bubo bubo
title_sort Sex allocation from an owl perspective: clutch order could determine brood sex to reduce sibling aggression in the Eagle Owl Bubo bubo
dc.creator.none.fl_str_mv Penteriani, Vincenzo
Delgado Sánchez, María del Mar
Ortego, Joaquín
Talavera, Olga M.
author Penteriani, Vincenzo
author_facet Penteriani, Vincenzo
Delgado Sánchez, María del Mar
Ortego, Joaquín
Talavera, Olga M.
author_role author
author2 Delgado Sánchez, María del Mar
Ortego, Joaquín
Talavera, Olga M.
author2_role author
author
author
description et al.
publishDate 2010
dc.date.none.fl_str_mv 2010
2012
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/62269
url http://hdl.handle.net/10261/62269
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Finnish Ornithological Society
publisher.none.fl_str_mv Finnish Ornithological Society
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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