Life‐history consequences of partial‐moult asymmetry
Summary Experiments have shown that asymmetry in flight feathers reduces flight performance. Large birds moult only part of their flight feathers during one season. We explore the asymmetry in the pattern of partial moult of flight feathers. We compared the partial‐moult pattern of all 10 primary an...
Published in: | Journal of Animal Ecology |
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crwiley:10.1046/j.1365-2656.2003.00773.x 2024-06-02T08:15:30+00:00 Life‐history consequences of partial‐moult asymmetry Brommer, Jon E. Pihlajamäki, Outi Kolunen, Heikki Pietiäinen, Hannu 2003 http://dx.doi.org/10.1046/j.1365-2656.2003.00773.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2656.2003.00773.x https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2656.2003.00773.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Animal Ecology volume 72, issue 6, page 1057-1063 ISSN 0021-8790 1365-2656 journal-article 2003 crwiley https://doi.org/10.1046/j.1365-2656.2003.00773.x 2024-05-03T11:59:57Z Summary Experiments have shown that asymmetry in flight feathers reduces flight performance. Large birds moult only part of their flight feathers during one season. We explore the asymmetry in the pattern of partial moult of flight feathers. We compared the partial‐moult pattern of all 10 primary and the 10 outermost secondary feathers on the right vs. the left wing of 327 Ural owl females. We counted the number of asymmetrically moulted feather positions. The number of feathers moulted affects the potential asymmetry in partial moult. We used bootstrapping to correct for this dependency. Females moulted especially their primary feathers, but also their secondary feathers, more symmetrically than expected by chance. Ural owls moulted fewer feathers after breeding than after not breeding, but the moult pattern was not more asymmetric than expected by chance. Partial‐moult asymmetry did not correlate with current reproductive output (laying date), but the asymmetry in primaries was associated with a reduced probability to survive to the next breeding season. Developmental homeostasis in partial moult appears to be under stabilizing survival selection. Partial‐moult asymmetry may link current reproductive expenditure to the next season and may serve as a tool for biomonitoring populations of large birds. Article in Journal/Newspaper Ural Owl Wiley Online Library Journal of Animal Ecology 72 6 1057 1063 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Summary Experiments have shown that asymmetry in flight feathers reduces flight performance. Large birds moult only part of their flight feathers during one season. We explore the asymmetry in the pattern of partial moult of flight feathers. We compared the partial‐moult pattern of all 10 primary and the 10 outermost secondary feathers on the right vs. the left wing of 327 Ural owl females. We counted the number of asymmetrically moulted feather positions. The number of feathers moulted affects the potential asymmetry in partial moult. We used bootstrapping to correct for this dependency. Females moulted especially their primary feathers, but also their secondary feathers, more symmetrically than expected by chance. Ural owls moulted fewer feathers after breeding than after not breeding, but the moult pattern was not more asymmetric than expected by chance. Partial‐moult asymmetry did not correlate with current reproductive output (laying date), but the asymmetry in primaries was associated with a reduced probability to survive to the next breeding season. Developmental homeostasis in partial moult appears to be under stabilizing survival selection. Partial‐moult asymmetry may link current reproductive expenditure to the next season and may serve as a tool for biomonitoring populations of large birds. |
format |
Article in Journal/Newspaper |
author |
Brommer, Jon E. Pihlajamäki, Outi Kolunen, Heikki Pietiäinen, Hannu |
spellingShingle |
Brommer, Jon E. Pihlajamäki, Outi Kolunen, Heikki Pietiäinen, Hannu Life‐history consequences of partial‐moult asymmetry |
author_facet |
Brommer, Jon E. Pihlajamäki, Outi Kolunen, Heikki Pietiäinen, Hannu |
author_sort |
Brommer, Jon E. |
title |
Life‐history consequences of partial‐moult asymmetry |
title_short |
Life‐history consequences of partial‐moult asymmetry |
title_full |
Life‐history consequences of partial‐moult asymmetry |
title_fullStr |
Life‐history consequences of partial‐moult asymmetry |
title_full_unstemmed |
Life‐history consequences of partial‐moult asymmetry |
title_sort |
life‐history consequences of partial‐moult asymmetry |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.1046/j.1365-2656.2003.00773.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2656.2003.00773.x https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2656.2003.00773.x |
genre |
Ural Owl |
genre_facet |
Ural Owl |
op_source |
Journal of Animal Ecology volume 72, issue 6, page 1057-1063 ISSN 0021-8790 1365-2656 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2656.2003.00773.x |
container_title |
Journal of Animal Ecology |
container_volume |
72 |
container_issue |
6 |
container_start_page |
1057 |
op_container_end_page |
1063 |
_version_ |
1800739696740925440 |