Variation in ice conditions has strong effects on the breeding of marine birds at Prince Leopold Island, Nunavut
The maximum extent of sea ice in the northern hemisphere has been contracting for several decades, with implications for all ice‐associated biota. To determine how variation in ice conditions affects reproduction in marine birds, we studied the effects of ice conditions on breeding of four species o...
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crwiley:10.1111/j.0906-7590.2005.04179.x 2024-06-23T07:50:45+00:00 Variation in ice conditions has strong effects on the breeding of marine birds at Prince Leopold Island, Nunavut Gaston, Anthony J. Gilchrist, H. Grant Mallory, Mark L. 2005 http://dx.doi.org/10.1111/j.0906-7590.2005.04179.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0906-7590.2005.04179.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0906-7590.2005.04179.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecography volume 28, issue 3, page 331-344 ISSN 0906-7590 1600-0587 journal-article 2005 crwiley https://doi.org/10.1111/j.0906-7590.2005.04179.x 2024-06-04T06:35:08Z The maximum extent of sea ice in the northern hemisphere has been contracting for several decades, with implications for all ice‐associated biota. To determine how variation in ice conditions affects reproduction in marine birds, we studied the effects of ice conditions on breeding of four species of seabirds over four years at Prince Leopold Island, Nunavut, a colony close to the limits of ice conditions where breeding is feasible. In 2000 and 2003, open water was present close to the colony in June, when the birds began to lay eggs. In 2001 and 2002, the ice edge in June was >200 km to the east of the colony, forcing birds to commute long distances to open water to feed. Egg‐laying by thick‐billed murres, black‐legged kittiwakes and glaucous gulls was delayed and eggs and clutches were smaller in 2001 and 2002. However, northern fulmars laid at the same time in all years, although their incubation shifts were longer in 2001 and 2002 than in 2003. Open water was present close to the colony by the time of hatching in all years. Despite this, nestling survival of northern fulmars, body condition and nestling growth of thick‐billed murres and body condition and nestling survival of black‐legged kittiwakes were lower in 2001 and 2002 than in –2000 and 2003. All these indicators suggest that feeding conditions in the years of late ice break‐up continued to be worse than usual even after open water was available at the colony. Our study suggests that current trends towards earlier ice break‐up in the Arctic may be beneficial for marine birds at Prince Leopold Island, at least in the short‐term. Article in Journal/Newspaper Arctic Nunavut Sea ice Wiley Online Library Arctic Leopold Island ENVELOPE(-63.380,-63.380,64.967,64.967) Nunavut Prince Leopold Island ENVELOPE(-90.083,-90.083,74.035,74.035) Ecography 28 3 331 344 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
The maximum extent of sea ice in the northern hemisphere has been contracting for several decades, with implications for all ice‐associated biota. To determine how variation in ice conditions affects reproduction in marine birds, we studied the effects of ice conditions on breeding of four species of seabirds over four years at Prince Leopold Island, Nunavut, a colony close to the limits of ice conditions where breeding is feasible. In 2000 and 2003, open water was present close to the colony in June, when the birds began to lay eggs. In 2001 and 2002, the ice edge in June was >200 km to the east of the colony, forcing birds to commute long distances to open water to feed. Egg‐laying by thick‐billed murres, black‐legged kittiwakes and glaucous gulls was delayed and eggs and clutches were smaller in 2001 and 2002. However, northern fulmars laid at the same time in all years, although their incubation shifts were longer in 2001 and 2002 than in 2003. Open water was present close to the colony by the time of hatching in all years. Despite this, nestling survival of northern fulmars, body condition and nestling growth of thick‐billed murres and body condition and nestling survival of black‐legged kittiwakes were lower in 2001 and 2002 than in –2000 and 2003. All these indicators suggest that feeding conditions in the years of late ice break‐up continued to be worse than usual even after open water was available at the colony. Our study suggests that current trends towards earlier ice break‐up in the Arctic may be beneficial for marine birds at Prince Leopold Island, at least in the short‐term. |
format |
Article in Journal/Newspaper |
author |
Gaston, Anthony J. Gilchrist, H. Grant Mallory, Mark L. |
spellingShingle |
Gaston, Anthony J. Gilchrist, H. Grant Mallory, Mark L. Variation in ice conditions has strong effects on the breeding of marine birds at Prince Leopold Island, Nunavut |
author_facet |
Gaston, Anthony J. Gilchrist, H. Grant Mallory, Mark L. |
author_sort |
Gaston, Anthony J. |
title |
Variation in ice conditions has strong effects on the breeding of marine birds at Prince Leopold Island, Nunavut |
title_short |
Variation in ice conditions has strong effects on the breeding of marine birds at Prince Leopold Island, Nunavut |
title_full |
Variation in ice conditions has strong effects on the breeding of marine birds at Prince Leopold Island, Nunavut |
title_fullStr |
Variation in ice conditions has strong effects on the breeding of marine birds at Prince Leopold Island, Nunavut |
title_full_unstemmed |
Variation in ice conditions has strong effects on the breeding of marine birds at Prince Leopold Island, Nunavut |
title_sort |
variation in ice conditions has strong effects on the breeding of marine birds at prince leopold island, nunavut |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1111/j.0906-7590.2005.04179.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0906-7590.2005.04179.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0906-7590.2005.04179.x |
long_lat |
ENVELOPE(-63.380,-63.380,64.967,64.967) ENVELOPE(-90.083,-90.083,74.035,74.035) |
geographic |
Arctic Leopold Island Nunavut Prince Leopold Island |
geographic_facet |
Arctic Leopold Island Nunavut Prince Leopold Island |
genre |
Arctic Nunavut Sea ice |
genre_facet |
Arctic Nunavut Sea ice |
op_source |
Ecography volume 28, issue 3, page 331-344 ISSN 0906-7590 1600-0587 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.0906-7590.2005.04179.x |
container_title |
Ecography |
container_volume |
28 |
container_issue |
3 |
container_start_page |
331 |
op_container_end_page |
344 |
_version_ |
1802641664766902272 |