Fitness-related Consequences of Relaying in an Arctic Seabird: Survival of Offspring to Recruitment Age
Abstract Seasonal declines in rates of renesting following clutch loss are common features of avian breeding, and are generally thought to reflect underlying seasonal declines in food availability that lower survival prospects for late-season offspring. However, in Thick-billed Murres (Uria lomvia),...
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Online Access: | http://dx.doi.org/10.1093/auk/118.4.1076 http://academic.oup.com/auk/article-pdf/118/4/1076/29686453/auk1076.pdf |
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croxfordunivpr:10.1093/auk/118.4.1076 2023-11-12T04:12:33+01:00 Fitness-related Consequences of Relaying in an Arctic Seabird: Survival of Offspring to Recruitment Age Hipfner, J. Mark Nettleship, D. 2001 http://dx.doi.org/10.1093/auk/118.4.1076 http://academic.oup.com/auk/article-pdf/118/4/1076/29686453/auk1076.pdf en eng Oxford University Press (OUP) The Auk volume 118, issue 4, page 1076-1080 ISSN 1938-4254 0004-8038 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2001 croxfordunivpr https://doi.org/10.1093/auk/118.4.1076 2023-10-13T10:51:22Z Abstract Seasonal declines in rates of renesting following clutch loss are common features of avian breeding, and are generally thought to reflect underlying seasonal declines in food availability that lower survival prospects for late-season offspring. However, in Thick-billed Murres (Uria lomvia), long-lived Arctic seabirds that lays a single-egg clutch, previous research has shown that early laying females will continue to relay until late in the laying period. Moreover, hatching success is similar between first and replacement attempts, as are nestling growth and survival, when parental quality is controlled. I compared survival between departure from the breeding site and recruitment age (4–5 years) for Thick-billed Murres that hatched from first and replacement eggs, but that were raised by parents that laid their first eggs early in the season. Replacement-egg offspring hatched and departed the colony about three weeks later than did first-egg offspring, but despite that, they were no less likely to survive to recruitment age. That result indicates that the potential fitness payoff from a replacement egg is similar to that from a first egg for the more capable members of the population. I suggest that an adequate and predictable late-season food supply ultimately underlies the considerable relaying capacity exhibited by Thick-billed Murres. Article in Journal/Newspaper Arctic Uria lomvia uria Oxford University Press (via Crossref) Arctic The Auk 118 4 1076 1080 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Hipfner, J. Mark Nettleship, D. Fitness-related Consequences of Relaying in an Arctic Seabird: Survival of Offspring to Recruitment Age |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract Seasonal declines in rates of renesting following clutch loss are common features of avian breeding, and are generally thought to reflect underlying seasonal declines in food availability that lower survival prospects for late-season offspring. However, in Thick-billed Murres (Uria lomvia), long-lived Arctic seabirds that lays a single-egg clutch, previous research has shown that early laying females will continue to relay until late in the laying period. Moreover, hatching success is similar between first and replacement attempts, as are nestling growth and survival, when parental quality is controlled. I compared survival between departure from the breeding site and recruitment age (4–5 years) for Thick-billed Murres that hatched from first and replacement eggs, but that were raised by parents that laid their first eggs early in the season. Replacement-egg offspring hatched and departed the colony about three weeks later than did first-egg offspring, but despite that, they were no less likely to survive to recruitment age. That result indicates that the potential fitness payoff from a replacement egg is similar to that from a first egg for the more capable members of the population. I suggest that an adequate and predictable late-season food supply ultimately underlies the considerable relaying capacity exhibited by Thick-billed Murres. |
format |
Article in Journal/Newspaper |
author |
Hipfner, J. Mark Nettleship, D. |
author_facet |
Hipfner, J. Mark Nettleship, D. |
author_sort |
Hipfner, J. Mark |
title |
Fitness-related Consequences of Relaying in an Arctic Seabird: Survival of Offspring to Recruitment Age |
title_short |
Fitness-related Consequences of Relaying in an Arctic Seabird: Survival of Offspring to Recruitment Age |
title_full |
Fitness-related Consequences of Relaying in an Arctic Seabird: Survival of Offspring to Recruitment Age |
title_fullStr |
Fitness-related Consequences of Relaying in an Arctic Seabird: Survival of Offspring to Recruitment Age |
title_full_unstemmed |
Fitness-related Consequences of Relaying in an Arctic Seabird: Survival of Offspring to Recruitment Age |
title_sort |
fitness-related consequences of relaying in an arctic seabird: survival of offspring to recruitment age |
publisher |
Oxford University Press (OUP) |
publishDate |
2001 |
url |
http://dx.doi.org/10.1093/auk/118.4.1076 http://academic.oup.com/auk/article-pdf/118/4/1076/29686453/auk1076.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Uria lomvia uria |
genre_facet |
Arctic Uria lomvia uria |
op_source |
The Auk volume 118, issue 4, page 1076-1080 ISSN 1938-4254 0004-8038 |
op_doi |
https://doi.org/10.1093/auk/118.4.1076 |
container_title |
The Auk |
container_volume |
118 |
container_issue |
4 |
container_start_page |
1076 |
op_container_end_page |
1080 |
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1782331016579383296 |