Mate Choice and Colored Beak Spots of King Penguins
Abstract The theory of sexual selection explains sexual dimorphisms in ornaments used in mate choice. Mutual mate choice is a form of sexual selection that might explain sexually monomorphic ornamental traits. Under mutual mate choice, both sexes select partners based on the same ornament. We tested...
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crwiley:10.1111/eth.12419 2024-06-02T08:09:52+00:00 Mate Choice and Colored Beak Spots of King Penguins Keddar, Ismaël Altmeyer, Sophie Couchoux, Charline Jouventin, Pierre Dobson, F. Stephen Foster, S. Institut Polaire Français Paul Emile Victor 2015 http://dx.doi.org/10.1111/eth.12419 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feth.12419 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eth.12419 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ethology volume 121, issue 11, page 1048-1058 ISSN 0179-1613 1439-0310 journal-article 2015 crwiley https://doi.org/10.1111/eth.12419 2024-05-03T11:32:49Z Abstract The theory of sexual selection explains sexual dimorphisms in ornaments used in mate choice. Mutual mate choice is a form of sexual selection that might explain sexually monomorphic ornamental traits. Under mutual mate choice, both sexes select partners based on the same ornament. We tested the mutual mate choice hypothesis in a mutually ornamented seabird, the king penguin ( Aptenodytes patagonicus ), through observations of the pair formation process in the field. Penguins that were ready to mate formed displaying pairs at the edge of the colony. Some of these pairs moved into the breeding colony and produced an egg (definitive pairs), while other pairs separated and often switched to another potential partner (temporary pairs). Colored ornaments were quantified using color vision modeling. We predicted that birds would mate assortatively by their elaborate ornamental traits (specifically, colors of beak spots, auricular patches of feathers, and breast patch of feathers). We also predicted that definitive pairs would exhibit more elaborate ornaments than temporary pairs. The mutual mate choice hypothesis was supported by assortative pairing for color of the beak spots, but not for color or size of the auricular patches or for the color of the breast patch. An alternative hypothesis was also consistent with our results, that female choice for a male ornamental trait and superior female condition associated with the same trait produced assortative pairing patterns. More UV ‐ and yellow‐colored beak spots for females in definitive than temporary pairs supported the female choice hypothesis over the mutual mate choice hypothesis, but previous experimental results from altered beak spot colors supported the latter. Evidence to date thus supports both the mutual mate choice and female choice hypotheses. Article in Journal/Newspaper King Penguins Wiley Online Library The Beak ENVELOPE(-130.771,-130.771,56.466,56.466) Ethology 121 11 1048 1058 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The theory of sexual selection explains sexual dimorphisms in ornaments used in mate choice. Mutual mate choice is a form of sexual selection that might explain sexually monomorphic ornamental traits. Under mutual mate choice, both sexes select partners based on the same ornament. We tested the mutual mate choice hypothesis in a mutually ornamented seabird, the king penguin ( Aptenodytes patagonicus ), through observations of the pair formation process in the field. Penguins that were ready to mate formed displaying pairs at the edge of the colony. Some of these pairs moved into the breeding colony and produced an egg (definitive pairs), while other pairs separated and often switched to another potential partner (temporary pairs). Colored ornaments were quantified using color vision modeling. We predicted that birds would mate assortatively by their elaborate ornamental traits (specifically, colors of beak spots, auricular patches of feathers, and breast patch of feathers). We also predicted that definitive pairs would exhibit more elaborate ornaments than temporary pairs. The mutual mate choice hypothesis was supported by assortative pairing for color of the beak spots, but not for color or size of the auricular patches or for the color of the breast patch. An alternative hypothesis was also consistent with our results, that female choice for a male ornamental trait and superior female condition associated with the same trait produced assortative pairing patterns. More UV ‐ and yellow‐colored beak spots for females in definitive than temporary pairs supported the female choice hypothesis over the mutual mate choice hypothesis, but previous experimental results from altered beak spot colors supported the latter. Evidence to date thus supports both the mutual mate choice and female choice hypotheses. |
author2 |
Foster, S. Institut Polaire Français Paul Emile Victor |
format |
Article in Journal/Newspaper |
author |
Keddar, Ismaël Altmeyer, Sophie Couchoux, Charline Jouventin, Pierre Dobson, F. Stephen |
spellingShingle |
Keddar, Ismaël Altmeyer, Sophie Couchoux, Charline Jouventin, Pierre Dobson, F. Stephen Mate Choice and Colored Beak Spots of King Penguins |
author_facet |
Keddar, Ismaël Altmeyer, Sophie Couchoux, Charline Jouventin, Pierre Dobson, F. Stephen |
author_sort |
Keddar, Ismaël |
title |
Mate Choice and Colored Beak Spots of King Penguins |
title_short |
Mate Choice and Colored Beak Spots of King Penguins |
title_full |
Mate Choice and Colored Beak Spots of King Penguins |
title_fullStr |
Mate Choice and Colored Beak Spots of King Penguins |
title_full_unstemmed |
Mate Choice and Colored Beak Spots of King Penguins |
title_sort |
mate choice and colored beak spots of king penguins |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1111/eth.12419 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feth.12419 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eth.12419 |
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 |
Ethology volume 121, issue 11, page 1048-1058 ISSN 0179-1613 1439-0310 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/eth.12419 |
container_title |
Ethology |
container_volume |
121 |
container_issue |
11 |
container_start_page |
1048 |
op_container_end_page |
1058 |
_version_ |
1800755661479346176 |