Survival of the fattest: body stores on migration and survival in red knots Calidris canutus islandica
Severe summer weather in Greenland and Arctic Canada in 1972 and 1974 caused very poor breeding success and elevated adult mortality in red knots Calidris canutus islandica. We show that those individual knots that are known to have survived these summers were in better than average nutritional cond...
Published in: | Journal of Avian Biology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | http://dx.doi.org/10.1111/j.0908-8857.2007.03934.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0908-8857.2007.03934.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0908-8857.2007.03934.x |
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crwiley:10.1111/j.0908-8857.2007.03934.x 2024-06-23T07:49:53+00:00 Survival of the fattest: body stores on migration and survival in red knots Calidris canutus islandica Guy Morrison, R. I. Davidson, Nick C. Wilson, Jim R. 2007 http://dx.doi.org/10.1111/j.0908-8857.2007.03934.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0908-8857.2007.03934.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0908-8857.2007.03934.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Avian Biology volume 38, issue 4, page 479-487 ISSN 0908-8857 1600-048X journal-article 2007 crwiley https://doi.org/10.1111/j.0908-8857.2007.03934.x 2024-06-13T04:23:36Z Severe summer weather in Greenland and Arctic Canada in 1972 and 1974 caused very poor breeding success and elevated adult mortality in red knots Calidris canutus islandica. We show that those individual knots that are known to have survived these summers were in better than average nutritional condition shortly before departure from their late spring staging area in west Iceland. The condition index of previously banded or subsequently recovered birds captured in Iceland was positively related to the number of summers they were known to have survived. Body stores carried from the last spring staging area to the breeding grounds appear to offer Arctic‐breeding shorebirds significant selective advantages: they are used for physical transformation from migration to breeding condition, and in years when weather is difficult may enable survival after arrival on the breeding grounds. Article in Journal/Newspaper Arctic Calidris canutus Greenland Iceland Wiley Online Library Arctic Canada Greenland Journal of Avian Biology 38 4 479 487 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Severe summer weather in Greenland and Arctic Canada in 1972 and 1974 caused very poor breeding success and elevated adult mortality in red knots Calidris canutus islandica. We show that those individual knots that are known to have survived these summers were in better than average nutritional condition shortly before departure from their late spring staging area in west Iceland. The condition index of previously banded or subsequently recovered birds captured in Iceland was positively related to the number of summers they were known to have survived. Body stores carried from the last spring staging area to the breeding grounds appear to offer Arctic‐breeding shorebirds significant selective advantages: they are used for physical transformation from migration to breeding condition, and in years when weather is difficult may enable survival after arrival on the breeding grounds. |
format |
Article in Journal/Newspaper |
author |
Guy Morrison, R. I. Davidson, Nick C. Wilson, Jim R. |
spellingShingle |
Guy Morrison, R. I. Davidson, Nick C. Wilson, Jim R. Survival of the fattest: body stores on migration and survival in red knots Calidris canutus islandica |
author_facet |
Guy Morrison, R. I. Davidson, Nick C. Wilson, Jim R. |
author_sort |
Guy Morrison, R. I. |
title |
Survival of the fattest: body stores on migration and survival in red knots Calidris canutus islandica |
title_short |
Survival of the fattest: body stores on migration and survival in red knots Calidris canutus islandica |
title_full |
Survival of the fattest: body stores on migration and survival in red knots Calidris canutus islandica |
title_fullStr |
Survival of the fattest: body stores on migration and survival in red knots Calidris canutus islandica |
title_full_unstemmed |
Survival of the fattest: body stores on migration and survival in red knots Calidris canutus islandica |
title_sort |
survival of the fattest: body stores on migration and survival in red knots calidris canutus islandica |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1111/j.0908-8857.2007.03934.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0908-8857.2007.03934.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0908-8857.2007.03934.x |
geographic |
Arctic Canada Greenland |
geographic_facet |
Arctic Canada Greenland |
genre |
Arctic Calidris canutus Greenland Iceland |
genre_facet |
Arctic Calidris canutus Greenland Iceland |
op_source |
Journal of Avian Biology volume 38, issue 4, page 479-487 ISSN 0908-8857 1600-048X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.0908-8857.2007.03934.x |
container_title |
Journal of Avian Biology |
container_volume |
38 |
container_issue |
4 |
container_start_page |
479 |
op_container_end_page |
487 |
_version_ |
1802640573505470464 |