Kin selection and polygyny: can relatedness lower the polygyny threshold?
Resource polygyny incurs costs of having to share breeding resources for female breeders. When breeding with a relative, however, such costs may be lessened by indirect fitness benefits through kin selection, while benefits from mutualistic behaviour, such as communal defence, may increase. If so, f...
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ftdoajarticles:oai:doaj.org/article:3d0397dfbab5452385b94bab29ae0869 2023-05-15T18:42:34+02:00 Kin selection and polygyny: can relatedness lower the polygyny threshold? Gaute Grønstøl Donald Blomqvist Angela Pauliny Richard H. Wagner 2015-01-01T00:00:00Z https://doi.org/10.1098/rsos.140409 https://doaj.org/article/3d0397dfbab5452385b94bab29ae0869 EN eng The Royal Society https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.140409 https://doaj.org/toc/2054-5703 2054-5703 doi:10.1098/rsos.140409 https://doaj.org/article/3d0397dfbab5452385b94bab29ae0869 Royal Society Open Science, Vol 2, Iss 6 (2015) kin selection polygyny relatedness mate choice lapwings Science Q article 2015 ftdoajarticles https://doi.org/10.1098/rsos.140409 2022-12-31T04:17:48Z Resource polygyny incurs costs of having to share breeding resources for female breeders. When breeding with a relative, however, such costs may be lessened by indirect fitness benefits through kin selection, while benefits from mutualistic behaviour, such as communal defence, may increase. If so, females should be less resistant to sharing a territory with a related female than with a non-related one. We investigated whether kin selection may lower the threshold of breeding polygynously, predicting a closer relatedness between polygynous females breeding on the same territory than between females breeding on different territories. Northern lapwings, Vanellus vanellus, are suitable for testing this hypothesis as they are commonly polygynous, both sexes take part in nest defence, and the efficiency of nest defence increases with the number of defenders. Using an index of relatedness derived from DNA fingerprinting, we found that female lapwings that shared polygynous dyads were on average twice as closely related as were random females. Furthermore, relatedness did not correlate with distance between breeders, indicating that our findings cannot be explained by natal philopatry alone. Our results suggest that the polygyny threshold in lapwings may be lowered by inclusive fitness advantages of kin selection. Article in Journal/Newspaper Vanellus vanellus Directory of Open Access Journals: DOAJ Articles Royal Society Open Science 2 6 140409 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
kin selection polygyny relatedness mate choice lapwings Science Q |
spellingShingle |
kin selection polygyny relatedness mate choice lapwings Science Q Gaute Grønstøl Donald Blomqvist Angela Pauliny Richard H. Wagner Kin selection and polygyny: can relatedness lower the polygyny threshold? |
topic_facet |
kin selection polygyny relatedness mate choice lapwings Science Q |
description |
Resource polygyny incurs costs of having to share breeding resources for female breeders. When breeding with a relative, however, such costs may be lessened by indirect fitness benefits through kin selection, while benefits from mutualistic behaviour, such as communal defence, may increase. If so, females should be less resistant to sharing a territory with a related female than with a non-related one. We investigated whether kin selection may lower the threshold of breeding polygynously, predicting a closer relatedness between polygynous females breeding on the same territory than between females breeding on different territories. Northern lapwings, Vanellus vanellus, are suitable for testing this hypothesis as they are commonly polygynous, both sexes take part in nest defence, and the efficiency of nest defence increases with the number of defenders. Using an index of relatedness derived from DNA fingerprinting, we found that female lapwings that shared polygynous dyads were on average twice as closely related as were random females. Furthermore, relatedness did not correlate with distance between breeders, indicating that our findings cannot be explained by natal philopatry alone. Our results suggest that the polygyny threshold in lapwings may be lowered by inclusive fitness advantages of kin selection. |
format |
Article in Journal/Newspaper |
author |
Gaute Grønstøl Donald Blomqvist Angela Pauliny Richard H. Wagner |
author_facet |
Gaute Grønstøl Donald Blomqvist Angela Pauliny Richard H. Wagner |
author_sort |
Gaute Grønstøl |
title |
Kin selection and polygyny: can relatedness lower the polygyny threshold? |
title_short |
Kin selection and polygyny: can relatedness lower the polygyny threshold? |
title_full |
Kin selection and polygyny: can relatedness lower the polygyny threshold? |
title_fullStr |
Kin selection and polygyny: can relatedness lower the polygyny threshold? |
title_full_unstemmed |
Kin selection and polygyny: can relatedness lower the polygyny threshold? |
title_sort |
kin selection and polygyny: can relatedness lower the polygyny threshold? |
publisher |
The Royal Society |
publishDate |
2015 |
url |
https://doi.org/10.1098/rsos.140409 https://doaj.org/article/3d0397dfbab5452385b94bab29ae0869 |
genre |
Vanellus vanellus |
genre_facet |
Vanellus vanellus |
op_source |
Royal Society Open Science, Vol 2, Iss 6 (2015) |
op_relation |
https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.140409 https://doaj.org/toc/2054-5703 2054-5703 doi:10.1098/rsos.140409 https://doaj.org/article/3d0397dfbab5452385b94bab29ae0869 |
op_doi |
https://doi.org/10.1098/rsos.140409 |
container_title |
Royal Society Open Science |
container_volume |
2 |
container_issue |
6 |
container_start_page |
140409 |
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1766232280882216960 |