Experimental stress during molt suggests the evolution of condition‐dependent and condition‐independent ornaments in the king penguin
Abstract Sexual selection and social selection are two important theories proposed for explaining the evolution of colorful ornamental traits in animals. Understanding signal honesty requires studying how environmental and physiological factors during development influence the showy nature of sexual...
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Online Access: | http://dx.doi.org/10.1002/ece3.3677 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.3677 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.3677 |
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crwiley:10.1002/ece3.3677 2024-06-02T08:09:52+00:00 Experimental stress during molt suggests the evolution of condition‐dependent and condition‐independent ornaments in the king penguin Schull, Quentin Robin, Jean‐Patrice Dobson, F. Stephen Saadaoui, Hédi Viblanc, Vincent A. Bize, Pierre Institut Polaire Français Paul Emile Victor Centre National de la Recherche Scientifique Ministère de l'Enseignement Supérieur et de la Recherche Scientifique 2017 http://dx.doi.org/10.1002/ece3.3677 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.3677 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.3677 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 8, issue 2, page 1084-1095 ISSN 2045-7758 2045-7758 journal-article 2017 crwiley https://doi.org/10.1002/ece3.3677 2024-05-03T11:50:37Z Abstract Sexual selection and social selection are two important theories proposed for explaining the evolution of colorful ornamental traits in animals. Understanding signal honesty requires studying how environmental and physiological factors during development influence the showy nature of sexual and social ornaments. We experimentally manipulated physiological stress and immunity status during the molt in adult king penguins ( Aptenodytes patagonicus ), and studied the consequences of our treatments on colourful ornaments (yellow‐orange and UV beak spots and yellow‐orange auricular feather patches) known to be used in sexual and social contexts in this species. Whereas some ornamental features showed strong condition‐dependence (yellow auricular feather chroma, yellow and UV chroma of the beak), others were condition‐independent and remained highly correlated before and after the molt (auricular patch size and beak UV hue). Our study provides a rare examination of the links between ornament determinism and selection processes in the wild. We highlight the coexistence of ornaments costly to produce that may be honest signals used in mate choice, and ornaments for which honesty may be enforced by social mediation or rely on genetic constraints. Article in Journal/Newspaper King Penguins Wiley Online Library The Beak ENVELOPE(-130.771,-130.771,56.466,56.466) Ecology and Evolution 8 2 1084 1095 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Sexual selection and social selection are two important theories proposed for explaining the evolution of colorful ornamental traits in animals. Understanding signal honesty requires studying how environmental and physiological factors during development influence the showy nature of sexual and social ornaments. We experimentally manipulated physiological stress and immunity status during the molt in adult king penguins ( Aptenodytes patagonicus ), and studied the consequences of our treatments on colourful ornaments (yellow‐orange and UV beak spots and yellow‐orange auricular feather patches) known to be used in sexual and social contexts in this species. Whereas some ornamental features showed strong condition‐dependence (yellow auricular feather chroma, yellow and UV chroma of the beak), others were condition‐independent and remained highly correlated before and after the molt (auricular patch size and beak UV hue). Our study provides a rare examination of the links between ornament determinism and selection processes in the wild. We highlight the coexistence of ornaments costly to produce that may be honest signals used in mate choice, and ornaments for which honesty may be enforced by social mediation or rely on genetic constraints. |
author2 |
Institut Polaire Français Paul Emile Victor Centre National de la Recherche Scientifique Ministère de l'Enseignement Supérieur et de la Recherche Scientifique |
format |
Article in Journal/Newspaper |
author |
Schull, Quentin Robin, Jean‐Patrice Dobson, F. Stephen Saadaoui, Hédi Viblanc, Vincent A. Bize, Pierre |
spellingShingle |
Schull, Quentin Robin, Jean‐Patrice Dobson, F. Stephen Saadaoui, Hédi Viblanc, Vincent A. Bize, Pierre Experimental stress during molt suggests the evolution of condition‐dependent and condition‐independent ornaments in the king penguin |
author_facet |
Schull, Quentin Robin, Jean‐Patrice Dobson, F. Stephen Saadaoui, Hédi Viblanc, Vincent A. Bize, Pierre |
author_sort |
Schull, Quentin |
title |
Experimental stress during molt suggests the evolution of condition‐dependent and condition‐independent ornaments in the king penguin |
title_short |
Experimental stress during molt suggests the evolution of condition‐dependent and condition‐independent ornaments in the king penguin |
title_full |
Experimental stress during molt suggests the evolution of condition‐dependent and condition‐independent ornaments in the king penguin |
title_fullStr |
Experimental stress during molt suggests the evolution of condition‐dependent and condition‐independent ornaments in the king penguin |
title_full_unstemmed |
Experimental stress during molt suggests the evolution of condition‐dependent and condition‐independent ornaments in the king penguin |
title_sort |
experimental stress during molt suggests the evolution of condition‐dependent and condition‐independent ornaments in the king penguin |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1002/ece3.3677 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.3677 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.3677 |
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 |
Ecology and Evolution volume 8, issue 2, page 1084-1095 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.3677 |
container_title |
Ecology and Evolution |
container_volume |
8 |
container_issue |
2 |
container_start_page |
1084 |
op_container_end_page |
1095 |
_version_ |
1800755659914870784 |