Comparison of color and body condition between early and late breeding King Penguins
Early breeding is associated with greater reproductive success in many species. In king penguins, Aptenodytes patagonicus, laying extends for 6 mo. Early breeders may fledge a single chick at best, but late breeders virtually never fledge a chick. For early and late breeders, we compared colored orn...
Published in: | Ethology |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2008
|
Subjects: | |
Online Access: | https://hdl.handle.net/11370/40916740-b45d-4234-aea4-e5f9d8fa5909 https://research.rug.nl/en/publications/40916740-b45d-4234-aea4-e5f9d8fa5909 https://doi.org/10.1111/j.1439-0310.2008.01545.x |
id |
ftunigroningenpu:oai:pure.rug.nl:publications/40916740-b45d-4234-aea4-e5f9d8fa5909 |
---|---|
record_format |
openpolar |
spelling |
ftunigroningenpu:oai:pure.rug.nl:publications/40916740-b45d-4234-aea4-e5f9d8fa5909 2024-06-02T08:09:52+00:00 Comparison of color and body condition between early and late breeding King Penguins Dobson, F. Stephen Nolan, Paul M. Nicolaus, Marion Bajzak, Catherine Coquel, Anne-Sophie Jouventin, Pierre 2008 https://hdl.handle.net/11370/40916740-b45d-4234-aea4-e5f9d8fa5909 https://research.rug.nl/en/publications/40916740-b45d-4234-aea4-e5f9d8fa5909 https://doi.org/10.1111/j.1439-0310.2008.01545.x eng eng https://research.rug.nl/en/publications/40916740-b45d-4234-aea4-e5f9d8fa5909 info:eu-repo/semantics/closedAccess Dobson , F S , Nolan , P M , Nicolaus , M , Bajzak , C , Coquel , A-S & Jouventin , P 2008 , ' Comparison of color and body condition between early and late breeding King Penguins ' , Ethology , vol. 114 , pp. 925-933 . https://doi.org/10.1111/j.1439-0310.2008.01545.x APTENODYTES-PATAGONICUS MATE CHOICE SELECTION BIRDS CYCLE SIZE SEX EVOLUTION FEATHERS YELLOW article 2008 ftunigroningenpu https://doi.org/10.1111/j.1439-0310.2008.01545.x 2024-05-07T19:55:28Z Early breeding is associated with greater reproductive success in many species. In king penguins, Aptenodytes patagonicus, laying extends for 6 mo. Early breeders may fledge a single chick at best, but late breeders virtually never fledge a chick. For early and late breeders, we compared colored ornaments known to be important in mate choice: yellow-orange feathers of the breast and auricular areas, and an ultraviolet and yellow-orange beak spot. Our purpose was to discern differences between males and females in this highly sexually monomorphic species, as well as to discern whether colored ornaments are more important for the more successful early breeders (aspects of color were hue, chroma, and brightness). For this, we weighed and measured 130 penguins. Early males had greater reflectance of ultraviolet color from the beak spot than did early females and late breeders of both sexes, and the early males were heavier and in better condition than late breeding males or females. Late breeding females were the yellowest in breast hue, a trait that has been linked to immunocompetence. Within pairs, males and females were significantly correlated in body mass, but only early in the breeding season. We concluded that early in the breeding season when reproductive success was greatest, potential mates were not only more similar in body mass, but also that females may have chosen males that had brighter beak spots and were in better body condition. Article in Journal/Newspaper King Penguins University of Groningen research database The Beak ENVELOPE(-130.771,-130.771,56.466,56.466) Ethology 114 9 925 933 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
APTENODYTES-PATAGONICUS MATE CHOICE SELECTION BIRDS CYCLE SIZE SEX EVOLUTION FEATHERS YELLOW |
spellingShingle |
APTENODYTES-PATAGONICUS MATE CHOICE SELECTION BIRDS CYCLE SIZE SEX EVOLUTION FEATHERS YELLOW Dobson, F. Stephen Nolan, Paul M. Nicolaus, Marion Bajzak, Catherine Coquel, Anne-Sophie Jouventin, Pierre Comparison of color and body condition between early and late breeding King Penguins |
topic_facet |
APTENODYTES-PATAGONICUS MATE CHOICE SELECTION BIRDS CYCLE SIZE SEX EVOLUTION FEATHERS YELLOW |
description |
Early breeding is associated with greater reproductive success in many species. In king penguins, Aptenodytes patagonicus, laying extends for 6 mo. Early breeders may fledge a single chick at best, but late breeders virtually never fledge a chick. For early and late breeders, we compared colored ornaments known to be important in mate choice: yellow-orange feathers of the breast and auricular areas, and an ultraviolet and yellow-orange beak spot. Our purpose was to discern differences between males and females in this highly sexually monomorphic species, as well as to discern whether colored ornaments are more important for the more successful early breeders (aspects of color were hue, chroma, and brightness). For this, we weighed and measured 130 penguins. Early males had greater reflectance of ultraviolet color from the beak spot than did early females and late breeders of both sexes, and the early males were heavier and in better condition than late breeding males or females. Late breeding females were the yellowest in breast hue, a trait that has been linked to immunocompetence. Within pairs, males and females were significantly correlated in body mass, but only early in the breeding season. We concluded that early in the breeding season when reproductive success was greatest, potential mates were not only more similar in body mass, but also that females may have chosen males that had brighter beak spots and were in better body condition. |
format |
Article in Journal/Newspaper |
author |
Dobson, F. Stephen Nolan, Paul M. Nicolaus, Marion Bajzak, Catherine Coquel, Anne-Sophie Jouventin, Pierre |
author_facet |
Dobson, F. Stephen Nolan, Paul M. Nicolaus, Marion Bajzak, Catherine Coquel, Anne-Sophie Jouventin, Pierre |
author_sort |
Dobson, F. Stephen |
title |
Comparison of color and body condition between early and late breeding King Penguins |
title_short |
Comparison of color and body condition between early and late breeding King Penguins |
title_full |
Comparison of color and body condition between early and late breeding King Penguins |
title_fullStr |
Comparison of color and body condition between early and late breeding King Penguins |
title_full_unstemmed |
Comparison of color and body condition between early and late breeding King Penguins |
title_sort |
comparison of color and body condition between early and late breeding king penguins |
publishDate |
2008 |
url |
https://hdl.handle.net/11370/40916740-b45d-4234-aea4-e5f9d8fa5909 https://research.rug.nl/en/publications/40916740-b45d-4234-aea4-e5f9d8fa5909 https://doi.org/10.1111/j.1439-0310.2008.01545.x |
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 |
Dobson , F S , Nolan , P M , Nicolaus , M , Bajzak , C , Coquel , A-S & Jouventin , P 2008 , ' Comparison of color and body condition between early and late breeding King Penguins ' , Ethology , vol. 114 , pp. 925-933 . https://doi.org/10.1111/j.1439-0310.2008.01545.x |
op_relation |
https://research.rug.nl/en/publications/40916740-b45d-4234-aea4-e5f9d8fa5909 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1111/j.1439-0310.2008.01545.x |
container_title |
Ethology |
container_volume |
114 |
container_issue |
9 |
container_start_page |
925 |
op_container_end_page |
933 |
_version_ |
1800755658576887808 |