Eider females form non‐kin brood‐rearing coalitions
Abstract Kin selection is a powerful tool for understanding cooperation among individuals, yet its role as the sole explanation of cooperative societies has recently been challenged on empirical grounds. These studies suggest that direct benefits of cooperation are often overlooked, and that partner...
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crwiley:10.1111/j.1365-294x.2005.02694.x 2024-06-02T08:14:27+00:00 Eider females form non‐kin brood‐rearing coalitions ÖST, MARKUS VITIKAINEN, EMMA WALDECK, PETER SUNDSTRÖM, LISELOTTE LINDSTRÖM, KAI HOLLMÉN, TUULA FRANSON, J. CHRISTIAN KILPI, MIKAEL 2005 http://dx.doi.org/10.1111/j.1365-294x.2005.02694.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2005.02694.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2005.02694.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 14, issue 12, page 3903-3908 ISSN 0962-1083 1365-294X journal-article 2005 crwiley https://doi.org/10.1111/j.1365-294x.2005.02694.x 2024-05-03T11:34:50Z Abstract Kin selection is a powerful tool for understanding cooperation among individuals, yet its role as the sole explanation of cooperative societies has recently been challenged on empirical grounds. These studies suggest that direct benefits of cooperation are often overlooked, and that partner choice may be a widespread mechanism of cooperation. Female eider ducks ( Somateria mollissima ) may rear broods alone, or they may pool their broods and share brood‐rearing. Females are philopatric, and it has been suggested that colonies may largely consist of related females, which could promote interactions among relatives. Alternatively, shared brood care could be random with respect to relatedness, either because brood amalgamations are accidental and nonadaptive, or through group augmentation, assuming that the fitness of all group members increases with group size. We tested these alternatives by measuring the relatedness of co‐tending eider females in enduring coalitions with microsatellite markers. Females formed enduring brood‐rearing coalitions with each other at random with respect to relatedness. However, based on previous data, partner choice is nonrandom and dependent on female body condition. We discuss potential mechanisms underlying eider communal brood‐rearing decisions, which may be driven by the specific ecological conditions under which sociality has evolved in this species. Article in Journal/Newspaper Somateria mollissima Wiley Online Library Molecular Ecology 14 12 3903 3908 |
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English |
description |
Abstract Kin selection is a powerful tool for understanding cooperation among individuals, yet its role as the sole explanation of cooperative societies has recently been challenged on empirical grounds. These studies suggest that direct benefits of cooperation are often overlooked, and that partner choice may be a widespread mechanism of cooperation. Female eider ducks ( Somateria mollissima ) may rear broods alone, or they may pool their broods and share brood‐rearing. Females are philopatric, and it has been suggested that colonies may largely consist of related females, which could promote interactions among relatives. Alternatively, shared brood care could be random with respect to relatedness, either because brood amalgamations are accidental and nonadaptive, or through group augmentation, assuming that the fitness of all group members increases with group size. We tested these alternatives by measuring the relatedness of co‐tending eider females in enduring coalitions with microsatellite markers. Females formed enduring brood‐rearing coalitions with each other at random with respect to relatedness. However, based on previous data, partner choice is nonrandom and dependent on female body condition. We discuss potential mechanisms underlying eider communal brood‐rearing decisions, which may be driven by the specific ecological conditions under which sociality has evolved in this species. |
format |
Article in Journal/Newspaper |
author |
ÖST, MARKUS VITIKAINEN, EMMA WALDECK, PETER SUNDSTRÖM, LISELOTTE LINDSTRÖM, KAI HOLLMÉN, TUULA FRANSON, J. CHRISTIAN KILPI, MIKAEL |
spellingShingle |
ÖST, MARKUS VITIKAINEN, EMMA WALDECK, PETER SUNDSTRÖM, LISELOTTE LINDSTRÖM, KAI HOLLMÉN, TUULA FRANSON, J. CHRISTIAN KILPI, MIKAEL Eider females form non‐kin brood‐rearing coalitions |
author_facet |
ÖST, MARKUS VITIKAINEN, EMMA WALDECK, PETER SUNDSTRÖM, LISELOTTE LINDSTRÖM, KAI HOLLMÉN, TUULA FRANSON, J. CHRISTIAN KILPI, MIKAEL |
author_sort |
ÖST, MARKUS |
title |
Eider females form non‐kin brood‐rearing coalitions |
title_short |
Eider females form non‐kin brood‐rearing coalitions |
title_full |
Eider females form non‐kin brood‐rearing coalitions |
title_fullStr |
Eider females form non‐kin brood‐rearing coalitions |
title_full_unstemmed |
Eider females form non‐kin brood‐rearing coalitions |
title_sort |
eider females form non‐kin brood‐rearing coalitions |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1111/j.1365-294x.2005.02694.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2005.02694.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2005.02694.x |
genre |
Somateria mollissima |
genre_facet |
Somateria mollissima |
op_source |
Molecular Ecology volume 14, issue 12, page 3903-3908 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-294x.2005.02694.x |
container_title |
Molecular Ecology |
container_volume |
14 |
container_issue |
12 |
container_start_page |
3903 |
op_container_end_page |
3908 |
_version_ |
1800738324910964736 |