Partial or complete? The evolution of post‐juvenile moult strategies in passerine birds

Moulting strategies in birds have evolved to avoid overlap with, or prepare for, other demanding parts of the annual cycle, such as reproduction or migration. When moulting for the first time after leaving the nest, young birds replace their typically poor‐quality plumage during the post‐juvenile mo...

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Autores: Delhey, Kaspar, Guallar, Santi, Rueda-Hernández, Rafael, Valcu, Mihai, Wang, Daiping, Kempenaers, Bart
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2072/377690
Acceso en línea:http://hdl.handle.net/2072/377690
https://doi.org/10.1111/1365-2656.13354
Access Level:acceso abierto
Palabra clave:Passeriformes
Ocells
Plomes
59
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spelling Partial or complete? The evolution of post‐juvenile moult strategies in passerine birdsDelhey, KasparGuallar, SantiRueda-Hernández, RafaelValcu, MihaiWang, DaipingKempenaers, BartPasseriformesOcellsPlomes59Moulting strategies in birds have evolved to avoid overlap with, or prepare for, other demanding parts of the annual cycle, such as reproduction or migration. When moulting for the first time after leaving the nest, young birds replace their typically poor‐quality plumage during the post‐juvenile moult. The extent of this moult varies between species from partial to complete. Earlier studies, restricted to Western Palearctic birds, suggest that in most species a complete post‐juvenile moult may not be possible simply because young birds are constrained by not having the same access to resources as adults, unless environmental conditions are favourable. These studies also show that complete post‐juvenile moult is more common in species with poor‐quality nest‐grown plumage. We expanded the spatial and taxonomic scope of previous studies to 1,315 species of passerines from across the world and considered both the role of constraints, plumage quality and other selective pressures favouring a complete post‐juvenile moult. Thus, we test whether complete moult is more prevalent in species where nest‐grown feathers are presumably of poor quality (shorter nestling period), that live in environments that foster quick plumage degradation (open habitats, high insolation and humidity), and where males are under strong sexual selection. Our data reveal that 24% of species carry out a complete post‐juvenile moult, and that this trait has a strong phylogenetic signal. Complete moult is more common in species that inhabit warmer regions and open habitats, show no delayed plumage maturation and have higher levels of sexual dichromatism (indicative of strong sexual selection). Neither the presumed quality of the nest‐grown plumage nor living in regions with high insolation correlates with complete moult. In conclusion, the evolution of complete post‐juvenile moult not only depends on whether birds can perform a complete moult (i.e. suitable environmental conditions) but also on the strength of selection associated with the need of a complete moult. In particular, the necessity to keep the plumage in good condition in challenging environments and the benefits associated with producing adult‐like plumage colours to attract mates or deter rivals seem to play an important role.Wiley2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion13 p.application/pdfhttp://hdl.handle.net/2072/377690https://doi.org/10.1111/1365-2656.13354RECERCAT (Dipòsit de la Recerca de Catalunya)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésJournal of animal ecology, 26 Sep. 2020L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by-nc/4.0/© 2020 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Societyinfo:eu-repo/semantics/openAccessoai:recercat.cat:2072/3776902026-05-29T05:05:01Z
dc.title.none.fl_str_mv Partial or complete? The evolution of post‐juvenile moult strategies in passerine birds
title Partial or complete? The evolution of post‐juvenile moult strategies in passerine birds
spellingShingle Partial or complete? The evolution of post‐juvenile moult strategies in passerine birds
Delhey, Kaspar
Passeriformes
Ocells
Plomes
59
title_short Partial or complete? The evolution of post‐juvenile moult strategies in passerine birds
title_full Partial or complete? The evolution of post‐juvenile moult strategies in passerine birds
title_fullStr Partial or complete? The evolution of post‐juvenile moult strategies in passerine birds
title_full_unstemmed Partial or complete? The evolution of post‐juvenile moult strategies in passerine birds
title_sort Partial or complete? The evolution of post‐juvenile moult strategies in passerine birds
dc.creator.none.fl_str_mv Delhey, Kaspar
Guallar, Santi
Rueda-Hernández, Rafael
Valcu, Mihai
Wang, Daiping
Kempenaers, Bart
author Delhey, Kaspar
author_facet Delhey, Kaspar
Guallar, Santi
Rueda-Hernández, Rafael
Valcu, Mihai
Wang, Daiping
Kempenaers, Bart
author_role author
author2 Guallar, Santi
Rueda-Hernández, Rafael
Valcu, Mihai
Wang, Daiping
Kempenaers, Bart
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Passeriformes
Ocells
Plomes
59
topic Passeriformes
Ocells
Plomes
59
description Moulting strategies in birds have evolved to avoid overlap with, or prepare for, other demanding parts of the annual cycle, such as reproduction or migration. When moulting for the first time after leaving the nest, young birds replace their typically poor‐quality plumage during the post‐juvenile moult. The extent of this moult varies between species from partial to complete. Earlier studies, restricted to Western Palearctic birds, suggest that in most species a complete post‐juvenile moult may not be possible simply because young birds are constrained by not having the same access to resources as adults, unless environmental conditions are favourable. These studies also show that complete post‐juvenile moult is more common in species with poor‐quality nest‐grown plumage. We expanded the spatial and taxonomic scope of previous studies to 1,315 species of passerines from across the world and considered both the role of constraints, plumage quality and other selective pressures favouring a complete post‐juvenile moult. Thus, we test whether complete moult is more prevalent in species where nest‐grown feathers are presumably of poor quality (shorter nestling period), that live in environments that foster quick plumage degradation (open habitats, high insolation and humidity), and where males are under strong sexual selection. Our data reveal that 24% of species carry out a complete post‐juvenile moult, and that this trait has a strong phylogenetic signal. Complete moult is more common in species that inhabit warmer regions and open habitats, show no delayed plumage maturation and have higher levels of sexual dichromatism (indicative of strong sexual selection). Neither the presumed quality of the nest‐grown plumage nor living in regions with high insolation correlates with complete moult. In conclusion, the evolution of complete post‐juvenile moult not only depends on whether birds can perform a complete moult (i.e. suitable environmental conditions) but also on the strength of selection associated with the need of a complete moult. In particular, the necessity to keep the plumage in good condition in challenging environments and the benefits associated with producing adult‐like plumage colours to attract mates or deter rivals seem to play an important role.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/2072/377690
https://doi.org/10.1111/1365-2656.13354
url http://hdl.handle.net/2072/377690
https://doi.org/10.1111/1365-2656.13354
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of animal ecology, 26 Sep. 2020
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 13 p.
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv RECERCAT (Dipòsit de la Recerca de Catalunya)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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