Mutually honest? Physiological ‘qualities' signalled by colour ornaments in monomorphic king penguins
Mate choice is expected to be important for the fitness of both sexes for species in which successful reproduction relies strongly on shared and substantial parental investment by males and females. Reciprocal selection may then favour the evolution of morphological signals providing mutual informat...
Published in: | Biological Journal of the Linnean Society |
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Language: | English |
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2016
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Online Access: | https://serval.unil.ch/notice/serval:BIB_4D7A1203DF7D https://doi.org/10.1111/bij.12729 |
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ftunivlausanne:oai:serval.unil.ch:BIB_4D7A1203DF7D 2024-02-11T10:05:32+01:00 Mutually honest? Physiological ‘qualities' signalled by colour ornaments in monomorphic king penguins Viblanc, V.A. Dobson, F. S. Stier, A. Schull, Q. Saraux, C. Gineste, B. Pardonnet, S. Kauffmann, M. Robin, J.P. Bize, P. 2016 https://serval.unil.ch/notice/serval:BIB_4D7A1203DF7D https://doi.org/10.1111/bij.12729 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1111/bij.12729 info:eu-repo/semantics/altIdentifier/pissn/1095-8312 https://serval.unil.ch/notice/serval:BIB_4D7A1203DF7D doi:10.1111/bij.12729 urn:issn:0024-4066 Biological Journal of the Linnean Society, vol. 118, no. 2, pp. 200-214 body condition king penguin monomorphic seabird mutual mate choice ornament oxidative stress sexual selection ultra-violet signals info:eu-repo/semantics/article article 2016 ftunivlausanne https://doi.org/10.1111/bij.12729 2024-01-22T01:10:36Z Mate choice is expected to be important for the fitness of both sexes for species in which successful reproduction relies strongly on shared and substantial parental investment by males and females. Reciprocal selection may then favour the evolution of morphological signals providing mutual information on the condition/quality of tentative partners. However, because males and females often have differing physiological constraints, it is unclear which proximate physiological pathways guarantee the honesty of male and female signals in similarly ornamented species. We used the monomorphic king penguin (Aptenodytes patagonicus) as a model to investigate the physiological qualities signalled by colour and morphological ornaments known to be under sexual selection (coloration of the beak spots and size of auricular feather patches). In both sexes of this slow-breeding seabird, we investigated the links between ornaments and multiple indices of individual quality; including body condition, immunity, stress and energy status. In both sexes, individual innate immunity, resting metabolic rate, and the ability to mount a stress response in answer to an acute disturbance (capture) were similarly signalled by various aspects of beak coloration or auricular patch size. However, we also reveal interesting and contrasting relationships between males and females in how ornaments may signal individual quality. Body condition and oxidative stress status were signalled by beak coloration, although in opposite directions for the sexes. Over an exhaustive set of physiological variables, several suggestive patterns indicated the conveyance of honest information about mate quality in this monomorphic species. However, sex-specific patterns suggested that monomorphic ornaments may signal different information concerning body mass and oxidative balance of males and females, at least in king penguins. Article in Journal/Newspaper King Penguins Université de Lausanne (UNIL): Serval - Serveur académique lausannois The Beak ENVELOPE(-130.771,-130.771,56.466,56.466) Biological Journal of the Linnean Society 118 2 200 214 |
institution |
Open Polar |
collection |
Université de Lausanne (UNIL): Serval - Serveur académique lausannois |
op_collection_id |
ftunivlausanne |
language |
English |
topic |
body condition king penguin monomorphic seabird mutual mate choice ornament oxidative stress sexual selection ultra-violet signals |
spellingShingle |
body condition king penguin monomorphic seabird mutual mate choice ornament oxidative stress sexual selection ultra-violet signals Viblanc, V.A. Dobson, F. S. Stier, A. Schull, Q. Saraux, C. Gineste, B. Pardonnet, S. Kauffmann, M. Robin, J.P. Bize, P. Mutually honest? Physiological ‘qualities' signalled by colour ornaments in monomorphic king penguins |
topic_facet |
body condition king penguin monomorphic seabird mutual mate choice ornament oxidative stress sexual selection ultra-violet signals |
description |
Mate choice is expected to be important for the fitness of both sexes for species in which successful reproduction relies strongly on shared and substantial parental investment by males and females. Reciprocal selection may then favour the evolution of morphological signals providing mutual information on the condition/quality of tentative partners. However, because males and females often have differing physiological constraints, it is unclear which proximate physiological pathways guarantee the honesty of male and female signals in similarly ornamented species. We used the monomorphic king penguin (Aptenodytes patagonicus) as a model to investigate the physiological qualities signalled by colour and morphological ornaments known to be under sexual selection (coloration of the beak spots and size of auricular feather patches). In both sexes of this slow-breeding seabird, we investigated the links between ornaments and multiple indices of individual quality; including body condition, immunity, stress and energy status. In both sexes, individual innate immunity, resting metabolic rate, and the ability to mount a stress response in answer to an acute disturbance (capture) were similarly signalled by various aspects of beak coloration or auricular patch size. However, we also reveal interesting and contrasting relationships between males and females in how ornaments may signal individual quality. Body condition and oxidative stress status were signalled by beak coloration, although in opposite directions for the sexes. Over an exhaustive set of physiological variables, several suggestive patterns indicated the conveyance of honest information about mate quality in this monomorphic species. However, sex-specific patterns suggested that monomorphic ornaments may signal different information concerning body mass and oxidative balance of males and females, at least in king penguins. |
format |
Article in Journal/Newspaper |
author |
Viblanc, V.A. Dobson, F. S. Stier, A. Schull, Q. Saraux, C. Gineste, B. Pardonnet, S. Kauffmann, M. Robin, J.P. Bize, P. |
author_facet |
Viblanc, V.A. Dobson, F. S. Stier, A. Schull, Q. Saraux, C. Gineste, B. Pardonnet, S. Kauffmann, M. Robin, J.P. Bize, P. |
author_sort |
Viblanc, V.A. |
title |
Mutually honest? Physiological ‘qualities' signalled by colour ornaments in monomorphic king penguins |
title_short |
Mutually honest? Physiological ‘qualities' signalled by colour ornaments in monomorphic king penguins |
title_full |
Mutually honest? Physiological ‘qualities' signalled by colour ornaments in monomorphic king penguins |
title_fullStr |
Mutually honest? Physiological ‘qualities' signalled by colour ornaments in monomorphic king penguins |
title_full_unstemmed |
Mutually honest? Physiological ‘qualities' signalled by colour ornaments in monomorphic king penguins |
title_sort |
mutually honest? physiological ‘qualities' signalled by colour ornaments in monomorphic king penguins |
publishDate |
2016 |
url |
https://serval.unil.ch/notice/serval:BIB_4D7A1203DF7D https://doi.org/10.1111/bij.12729 |
long_lat |
ENVELOPE(-130.771,-130.771,56.466,56.466) |
geographic |
The Beak |
geographic_facet |
The Beak |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
Biological Journal of the Linnean Society, vol. 118, no. 2, pp. 200-214 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/bij.12729 info:eu-repo/semantics/altIdentifier/pissn/1095-8312 https://serval.unil.ch/notice/serval:BIB_4D7A1203DF7D doi:10.1111/bij.12729 urn:issn:0024-4066 |
op_doi |
https://doi.org/10.1111/bij.12729 |
container_title |
Biological Journal of the Linnean Society |
container_volume |
118 |
container_issue |
2 |
container_start_page |
200 |
op_container_end_page |
214 |
_version_ |
1790602607188770816 |