Extra‐pair paternity in the strongly monogamous Wandering Albatross Diomedea exulanshas no apparent benefits for females
Although 92% of avian species are socially monogamous, extra‐pair copulation (EPC), resulting in extra‐pair paternity (EPP), is a common reproductive strategy in birds. Among seabirds, in which the rate of social monogamy reaches 100%, Procellariiformes (albatrosses and petrels) show low EPP rates,...
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crwiley:10.1111/j.1474-919x.2006.00597.x 2024-06-02T08:05:46+00:00 Extra‐pair paternity in the strongly monogamous Wandering Albatross Diomedea exulanshas no apparent benefits for females JOUVENTIN, PIERRE CHARMANTIER, ANNE DUBOIS, MARIE‐PIERRE JARNE, PHILIPPE BRIED, JOËL 2006 http://dx.doi.org/10.1111/j.1474-919x.2006.00597.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.2006.00597.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.2006.00597.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ibis volume 149, issue 1, page 67-78 ISSN 0019-1019 1474-919X journal-article 2006 crwiley https://doi.org/10.1111/j.1474-919x.2006.00597.x 2024-05-03T11:58:31Z Although 92% of avian species are socially monogamous, extra‐pair copulation (EPC), resulting in extra‐pair paternity (EPP), is a common reproductive strategy in birds. Among seabirds, in which the rate of social monogamy reaches 100%, Procellariiformes (albatrosses and petrels) show low EPP rates, with the noticeable exception of the only albatross investigated in this regard, the Waved Albatross Phoebastria irrorata . This species, in which forced copulations are known to occur, showed a surprisingly high rate of EPP (25% of chicks). We investigate here EPP rates in another albatross species, the Wandering Albatross Diomedea exulans , subject to a demographic survey conducted for 38 years. We combined data on pair bonds with analysis of ten microsatellite loci and found that 10.7% of 75 chicks had an extra‐pair sire. Although there was some evidence for inbreeding avoidance, within‐pair and extra‐pair chicks showed similar levels of heterozygosity, and the incidence of EPP was independent of age, experience or past reproductive success. Hence, we found no evidence that females benefit from EPCs. Owing to the male‐biased sex ratio in adults, widowed and divorced males required more time to find a new mate (+28 and +72%, respectively) than did females. Combined with high sexual size dimorphism, this phenomenon might promote the forced copulations observed in this species. Our data therefore suggest that EPC is beneficial to unpaired males but occurs at random in females, consistent with the hypothesis that EPP results solely from forced EPCs. However, the importance of the latter for EPP and the part played by solitary males require further investigation. Article in Journal/Newspaper Diomedea exulans Wandering Albatross Wiley Online Library Ibis 149 1 67 78 |
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Wiley Online Library |
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language |
English |
description |
Although 92% of avian species are socially monogamous, extra‐pair copulation (EPC), resulting in extra‐pair paternity (EPP), is a common reproductive strategy in birds. Among seabirds, in which the rate of social monogamy reaches 100%, Procellariiformes (albatrosses and petrels) show low EPP rates, with the noticeable exception of the only albatross investigated in this regard, the Waved Albatross Phoebastria irrorata . This species, in which forced copulations are known to occur, showed a surprisingly high rate of EPP (25% of chicks). We investigate here EPP rates in another albatross species, the Wandering Albatross Diomedea exulans , subject to a demographic survey conducted for 38 years. We combined data on pair bonds with analysis of ten microsatellite loci and found that 10.7% of 75 chicks had an extra‐pair sire. Although there was some evidence for inbreeding avoidance, within‐pair and extra‐pair chicks showed similar levels of heterozygosity, and the incidence of EPP was independent of age, experience or past reproductive success. Hence, we found no evidence that females benefit from EPCs. Owing to the male‐biased sex ratio in adults, widowed and divorced males required more time to find a new mate (+28 and +72%, respectively) than did females. Combined with high sexual size dimorphism, this phenomenon might promote the forced copulations observed in this species. Our data therefore suggest that EPC is beneficial to unpaired males but occurs at random in females, consistent with the hypothesis that EPP results solely from forced EPCs. However, the importance of the latter for EPP and the part played by solitary males require further investigation. |
format |
Article in Journal/Newspaper |
author |
JOUVENTIN, PIERRE CHARMANTIER, ANNE DUBOIS, MARIE‐PIERRE JARNE, PHILIPPE BRIED, JOËL |
spellingShingle |
JOUVENTIN, PIERRE CHARMANTIER, ANNE DUBOIS, MARIE‐PIERRE JARNE, PHILIPPE BRIED, JOËL Extra‐pair paternity in the strongly monogamous Wandering Albatross Diomedea exulanshas no apparent benefits for females |
author_facet |
JOUVENTIN, PIERRE CHARMANTIER, ANNE DUBOIS, MARIE‐PIERRE JARNE, PHILIPPE BRIED, JOËL |
author_sort |
JOUVENTIN, PIERRE |
title |
Extra‐pair paternity in the strongly monogamous Wandering Albatross Diomedea exulanshas no apparent benefits for females |
title_short |
Extra‐pair paternity in the strongly monogamous Wandering Albatross Diomedea exulanshas no apparent benefits for females |
title_full |
Extra‐pair paternity in the strongly monogamous Wandering Albatross Diomedea exulanshas no apparent benefits for females |
title_fullStr |
Extra‐pair paternity in the strongly monogamous Wandering Albatross Diomedea exulanshas no apparent benefits for females |
title_full_unstemmed |
Extra‐pair paternity in the strongly monogamous Wandering Albatross Diomedea exulanshas no apparent benefits for females |
title_sort |
extra‐pair paternity in the strongly monogamous wandering albatross diomedea exulanshas no apparent benefits for females |
publisher |
Wiley |
publishDate |
2006 |
url |
http://dx.doi.org/10.1111/j.1474-919x.2006.00597.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.2006.00597.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.2006.00597.x |
genre |
Diomedea exulans Wandering Albatross |
genre_facet |
Diomedea exulans Wandering Albatross |
op_source |
Ibis volume 149, issue 1, page 67-78 ISSN 0019-1019 1474-919X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1474-919x.2006.00597.x |
container_title |
Ibis |
container_volume |
149 |
container_issue |
1 |
container_start_page |
67 |
op_container_end_page |
78 |
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1800750639788064768 |