Polymorphism, mating preferences and sexual selection in the Arctic skua
Abstract The intensive study of the Arctic skua ( Stercorarius parasiticus ) population on Fair Isle has provided an example of the maintenance of a stable polymorphism by sexual selection in conjunction with assortative mating (O'Donald, 1983). We tested several of O'Donald's hypothe...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | http://dx.doi.org/10.1111/j.1469-7998.1998.tb00098.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.1998.tb00098.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1998.tb00098.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1998.tb00098.x |
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crwiley:10.1111/j.1469-7998.1998.tb00098.x 2024-06-02T08:01:18+00:00 Polymorphism, mating preferences and sexual selection in the Arctic skua Phillips, R. A. Furness, R. W. 1998 http://dx.doi.org/10.1111/j.1469-7998.1998.tb00098.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.1998.tb00098.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1998.tb00098.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1998.tb00098.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Zoology volume 245, issue 3, page 245-252 ISSN 0952-8369 1469-7998 journal-article 1998 crwiley https://doi.org/10.1111/j.1469-7998.1998.tb00098.x 2024-05-03T11:12:07Z Abstract The intensive study of the Arctic skua ( Stercorarius parasiticus ) population on Fair Isle has provided an example of the maintenance of a stable polymorphism by sexual selection in conjunction with assortative mating (O'Donald, 1983). We tested several of O'Donald's hypotheses using data collected from the large colony of Arctic skuas on Foula. There was some evidence for assortative mating of the phenotypes but this did not confer any short‐term fitness advantage. In contrast to the situation on Fair Isle, we found little indication that sexual selection took place for dark males since no differences in timing of breeding or productivity were evident between the two male phenotypes in new partnerships. Nor could we detect variation in adult body size, body condition, or any life‐history characteristic between melanic and pale birds of either sex. Many of the selection pressures documented on Fair Isle appear to be absent at the neighbouring Foula, despite a fair degree of gene flow between these colonies. The frequency of pale adults on Foula and in Shetland as a whole has declined since the 1970s, indicating that currently directional selection may be favouring the melanic phenotypes at the southern end of the breeding range. Article in Journal/Newspaper Arctic Arctic skua Stercorarius parasiticus Wiley Online Library Arctic Journal of Zoology 245 3 245 252 |
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Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The intensive study of the Arctic skua ( Stercorarius parasiticus ) population on Fair Isle has provided an example of the maintenance of a stable polymorphism by sexual selection in conjunction with assortative mating (O'Donald, 1983). We tested several of O'Donald's hypotheses using data collected from the large colony of Arctic skuas on Foula. There was some evidence for assortative mating of the phenotypes but this did not confer any short‐term fitness advantage. In contrast to the situation on Fair Isle, we found little indication that sexual selection took place for dark males since no differences in timing of breeding or productivity were evident between the two male phenotypes in new partnerships. Nor could we detect variation in adult body size, body condition, or any life‐history characteristic between melanic and pale birds of either sex. Many of the selection pressures documented on Fair Isle appear to be absent at the neighbouring Foula, despite a fair degree of gene flow between these colonies. The frequency of pale adults on Foula and in Shetland as a whole has declined since the 1970s, indicating that currently directional selection may be favouring the melanic phenotypes at the southern end of the breeding range. |
format |
Article in Journal/Newspaper |
author |
Phillips, R. A. Furness, R. W. |
spellingShingle |
Phillips, R. A. Furness, R. W. Polymorphism, mating preferences and sexual selection in the Arctic skua |
author_facet |
Phillips, R. A. Furness, R. W. |
author_sort |
Phillips, R. A. |
title |
Polymorphism, mating preferences and sexual selection in the Arctic skua |
title_short |
Polymorphism, mating preferences and sexual selection in the Arctic skua |
title_full |
Polymorphism, mating preferences and sexual selection in the Arctic skua |
title_fullStr |
Polymorphism, mating preferences and sexual selection in the Arctic skua |
title_full_unstemmed |
Polymorphism, mating preferences and sexual selection in the Arctic skua |
title_sort |
polymorphism, mating preferences and sexual selection in the arctic skua |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.1111/j.1469-7998.1998.tb00098.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.1998.tb00098.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1998.tb00098.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1998.tb00098.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic skua Stercorarius parasiticus |
genre_facet |
Arctic Arctic skua Stercorarius parasiticus |
op_source |
Journal of Zoology volume 245, issue 3, page 245-252 ISSN 0952-8369 1469-7998 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1469-7998.1998.tb00098.x |
container_title |
Journal of Zoology |
container_volume |
245 |
container_issue |
3 |
container_start_page |
245 |
op_container_end_page |
252 |
_version_ |
1800745603460759552 |