Mutual mate choice for olorful traits in King Penguins
While studies of mate choice based on male color pattern are ubiquitous, studies of mate choice based on ornamental color traits in sexually monomorphic species are less common. We conducted manipulative field experiments on two color ornaments of king penguins (Aptenodytes patagonicus), the size of...
Published in: | Ethology |
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2010
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Online Access: | https://hdl.handle.net/11370/abffcf87-58c1-48b3-89cb-e376590c9d89 https://research.rug.nl/en/publications/abffcf87-58c1-48b3-89cb-e376590c9d89 https://doi.org/10.1111/j.1439-0310.2010.01775.x |
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ftunigroningenpu:oai:pure.rug.nl:publications/abffcf87-58c1-48b3-89cb-e376590c9d89 2024-06-02T08:09:52+00:00 Mutual mate choice for olorful traits in King Penguins Nolan, Paul M. Dobson, F. Stephen Nicolaus, Marion Karels, Tim J. McGraw, Kevin J. Jouventin, Pierre 2010-07 https://hdl.handle.net/11370/abffcf87-58c1-48b3-89cb-e376590c9d89 https://research.rug.nl/en/publications/abffcf87-58c1-48b3-89cb-e376590c9d89 https://doi.org/10.1111/j.1439-0310.2010.01775.x eng eng https://research.rug.nl/en/publications/abffcf87-58c1-48b3-89cb-e376590c9d89 info:eu-repo/semantics/closedAccess Nolan , P M , Dobson , F S , Nicolaus , M , Karels , T J , McGraw , K J & Jouventin , P 2010 , ' Mutual mate choice for olorful traits in King Penguins ' , Ethology , vol. 116 , no. 7 , pp. 635-644 . https://doi.org/10.1111/j.1439-0310.2010.01775.x BLUE-FOOTED BOOBY FINCH BILL COLOR APTENODYTES-PATAGONICUS SEXUAL SELECTION BODY CONDITION FEMALE ORNAMENTS SIZE EVOLUTION DICHROMATISM article 2010 ftunigroningenpu https://doi.org/10.1111/j.1439-0310.2010.01775.x 2024-05-07T18:43:19Z While studies of mate choice based on male color pattern are ubiquitous, studies of mate choice based on ornamental color traits in sexually monomorphic species are less common. We conducted manipulative field experiments on two color ornaments of king penguins (Aptenodytes patagonicus), the size of auricular patches of orange feathers and degree of UV reflectance from beak spots, to determine how the degree of ornamentation influenced pairing rate. In a reduction of auricular patch size, females paired significantly more quickly than males in both control and experimental samples. When this bias was taken into account statistically, pairing of individuals with reduced auricular patches was significantly delayed. We also reduced, but did not eliminate, UV reflectance from beak spots by applying a UV filter; no sex difference in pairing rate was evident in this experiment. Treated birds paired significantly more slowly than untreated control individuals, taking more than a week longer to pair on average than their unmanipulated counterparts, a result that was significant for males and approached significance for females. Our results may indicate mutual mate choice via UV reflectance of the beak spot. Given that this is a species where breeding is extremely slow and considerable investment by both males and females is required for successful reproduction, our results support the hypothesis that in such species, sexual selection might act on the same ornament in both sexes. Article in Journal/Newspaper King Penguins University of Groningen research database Finch ENVELOPE(167.383,167.383,-72.567,-72.567) The Beak ENVELOPE(-130.771,-130.771,56.466,56.466) Ethology |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
BLUE-FOOTED BOOBY FINCH BILL COLOR APTENODYTES-PATAGONICUS SEXUAL SELECTION BODY CONDITION FEMALE ORNAMENTS SIZE EVOLUTION DICHROMATISM |
spellingShingle |
BLUE-FOOTED BOOBY FINCH BILL COLOR APTENODYTES-PATAGONICUS SEXUAL SELECTION BODY CONDITION FEMALE ORNAMENTS SIZE EVOLUTION DICHROMATISM Nolan, Paul M. Dobson, F. Stephen Nicolaus, Marion Karels, Tim J. McGraw, Kevin J. Jouventin, Pierre Mutual mate choice for olorful traits in King Penguins |
topic_facet |
BLUE-FOOTED BOOBY FINCH BILL COLOR APTENODYTES-PATAGONICUS SEXUAL SELECTION BODY CONDITION FEMALE ORNAMENTS SIZE EVOLUTION DICHROMATISM |
description |
While studies of mate choice based on male color pattern are ubiquitous, studies of mate choice based on ornamental color traits in sexually monomorphic species are less common. We conducted manipulative field experiments on two color ornaments of king penguins (Aptenodytes patagonicus), the size of auricular patches of orange feathers and degree of UV reflectance from beak spots, to determine how the degree of ornamentation influenced pairing rate. In a reduction of auricular patch size, females paired significantly more quickly than males in both control and experimental samples. When this bias was taken into account statistically, pairing of individuals with reduced auricular patches was significantly delayed. We also reduced, but did not eliminate, UV reflectance from beak spots by applying a UV filter; no sex difference in pairing rate was evident in this experiment. Treated birds paired significantly more slowly than untreated control individuals, taking more than a week longer to pair on average than their unmanipulated counterparts, a result that was significant for males and approached significance for females. Our results may indicate mutual mate choice via UV reflectance of the beak spot. Given that this is a species where breeding is extremely slow and considerable investment by both males and females is required for successful reproduction, our results support the hypothesis that in such species, sexual selection might act on the same ornament in both sexes. |
format |
Article in Journal/Newspaper |
author |
Nolan, Paul M. Dobson, F. Stephen Nicolaus, Marion Karels, Tim J. McGraw, Kevin J. Jouventin, Pierre |
author_facet |
Nolan, Paul M. Dobson, F. Stephen Nicolaus, Marion Karels, Tim J. McGraw, Kevin J. Jouventin, Pierre |
author_sort |
Nolan, Paul M. |
title |
Mutual mate choice for olorful traits in King Penguins |
title_short |
Mutual mate choice for olorful traits in King Penguins |
title_full |
Mutual mate choice for olorful traits in King Penguins |
title_fullStr |
Mutual mate choice for olorful traits in King Penguins |
title_full_unstemmed |
Mutual mate choice for olorful traits in King Penguins |
title_sort |
mutual mate choice for olorful traits in king penguins |
publishDate |
2010 |
url |
https://hdl.handle.net/11370/abffcf87-58c1-48b3-89cb-e376590c9d89 https://research.rug.nl/en/publications/abffcf87-58c1-48b3-89cb-e376590c9d89 https://doi.org/10.1111/j.1439-0310.2010.01775.x |
long_lat |
ENVELOPE(167.383,167.383,-72.567,-72.567) ENVELOPE(-130.771,-130.771,56.466,56.466) |
geographic |
Finch The Beak |
geographic_facet |
Finch The Beak |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
Nolan , P M , Dobson , F S , Nicolaus , M , Karels , T J , McGraw , K J & Jouventin , P 2010 , ' Mutual mate choice for olorful traits in King Penguins ' , Ethology , vol. 116 , no. 7 , pp. 635-644 . https://doi.org/10.1111/j.1439-0310.2010.01775.x |
op_relation |
https://research.rug.nl/en/publications/abffcf87-58c1-48b3-89cb-e376590c9d89 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1111/j.1439-0310.2010.01775.x |
container_title |
Ethology |
_version_ |
1800755658194157568 |