The breeding performance of the Gentoo Penguin Pygoscelis papua at the northern edge of its range
Gentoo Penguins Pygoscelis papua on the Crozet Islands have a unique timing of breeding, which occurs in winter and is considerably protracted, differing greatly from that of other populations breeding south of the antarctic convergence. Their breeding biology was intensively studied in 1983–1989, i...
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1991
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Online Access: | http://dx.doi.org/10.1111/j.1474-919x.1991.tb04804.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1991.tb04804.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1991.tb04804.x |
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crwiley:10.1111/j.1474-919x.1991.tb04804.x 2024-06-02T07:57:09+00:00 The breeding performance of the Gentoo Penguin Pygoscelis papua at the northern edge of its range BOST, C. A. JOUVENTIN, P. 1991 http://dx.doi.org/10.1111/j.1474-919x.1991.tb04804.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1991.tb04804.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1991.tb04804.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ibis volume 133, issue 1, page 14-25 ISSN 0019-1019 1474-919X journal-article 1991 crwiley https://doi.org/10.1111/j.1474-919x.1991.tb04804.x 2024-05-03T11:35:20Z Gentoo Penguins Pygoscelis papua on the Crozet Islands have a unique timing of breeding, which occurs in winter and is considerably protracted, differing greatly from that of other populations breeding south of the antarctic convergence. Their breeding biology was intensively studied in 1983–1989, involving daily observations in 1983–1985. Winter breeding is associated with an extension of laying, chick rearing, foraging trips and premoult periods, a lower breeding success and a high weight loss. Annual variations in breeding performances were less pronounced than for southern populations. Variations in breeding success were closely associated with variations in feeding frequencies, fledging and breeding weight, and timing of laying. Early breeders were at an advantage over late breeders in terms of breeding success, growth patterns, fledging weight, duration of foraging trips and premoult period. The unusual winter breeding coincides with a time when food is most readily available for chick rearing in restricted foraging conditions at the edge of the species' breeding range. Article in Journal/Newspaper Antarc* Antarctic Crozet Islands Gentoo penguin Pygoscelis papua Wiley Online Library Antarctic The Antarctic Ibis 133 1 14 25 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Gentoo Penguins Pygoscelis papua on the Crozet Islands have a unique timing of breeding, which occurs in winter and is considerably protracted, differing greatly from that of other populations breeding south of the antarctic convergence. Their breeding biology was intensively studied in 1983–1989, involving daily observations in 1983–1985. Winter breeding is associated with an extension of laying, chick rearing, foraging trips and premoult periods, a lower breeding success and a high weight loss. Annual variations in breeding performances were less pronounced than for southern populations. Variations in breeding success were closely associated with variations in feeding frequencies, fledging and breeding weight, and timing of laying. Early breeders were at an advantage over late breeders in terms of breeding success, growth patterns, fledging weight, duration of foraging trips and premoult period. The unusual winter breeding coincides with a time when food is most readily available for chick rearing in restricted foraging conditions at the edge of the species' breeding range. |
format |
Article in Journal/Newspaper |
author |
BOST, C. A. JOUVENTIN, P. |
spellingShingle |
BOST, C. A. JOUVENTIN, P. The breeding performance of the Gentoo Penguin Pygoscelis papua at the northern edge of its range |
author_facet |
BOST, C. A. JOUVENTIN, P. |
author_sort |
BOST, C. A. |
title |
The breeding performance of the Gentoo Penguin Pygoscelis papua at the northern edge of its range |
title_short |
The breeding performance of the Gentoo Penguin Pygoscelis papua at the northern edge of its range |
title_full |
The breeding performance of the Gentoo Penguin Pygoscelis papua at the northern edge of its range |
title_fullStr |
The breeding performance of the Gentoo Penguin Pygoscelis papua at the northern edge of its range |
title_full_unstemmed |
The breeding performance of the Gentoo Penguin Pygoscelis papua at the northern edge of its range |
title_sort |
breeding performance of the gentoo penguin pygoscelis papua at the northern edge of its range |
publisher |
Wiley |
publishDate |
1991 |
url |
http://dx.doi.org/10.1111/j.1474-919x.1991.tb04804.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1991.tb04804.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1991.tb04804.x |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Crozet Islands Gentoo penguin Pygoscelis papua |
genre_facet |
Antarc* Antarctic Crozet Islands Gentoo penguin Pygoscelis papua |
op_source |
Ibis volume 133, issue 1, page 14-25 ISSN 0019-1019 1474-919X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1474-919x.1991.tb04804.x |
container_title |
Ibis |
container_volume |
133 |
container_issue |
1 |
container_start_page |
14 |
op_container_end_page |
25 |
_version_ |
1800739331041656832 |