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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ftpubmed:oai:pubmedcentral.nih.gov:4632532 2023-05-15T18:42:34+02:00 Kin selection and polygyny: can relatedness lower the polygyny threshold? Grønstøl, Gaute Blomqvist, Donald Pauliny, Angela Wagner, Richard H. 2015-06-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4632532/ https://doi.org/10.1098/rsos.140409 en eng The Royal Society Publishing http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4632532/ http://dx.doi.org/10.1098/rsos.140409 http://creativecommons.org/licenses/by/4.0/ © 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY Biology (Whole Organism) Text 2015 ftpubmed https://doi.org/10.1098/rsos.140409 2015-11-08T01:46:42Z 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. Text Vanellus vanellus PubMed Central (PMC) Royal Society Open Science 2 6 140409 |
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language |
English |
topic |
Biology (Whole Organism) |
spellingShingle |
Biology (Whole Organism) Grønstøl, Gaute Blomqvist, Donald Pauliny, Angela Wagner, Richard H. Kin selection and polygyny: can relatedness lower the polygyny threshold? |
topic_facet |
Biology (Whole Organism) |
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 |
Text |
author |
Grønstøl, Gaute Blomqvist, Donald Pauliny, Angela Wagner, Richard H. |
author_facet |
Grønstøl, Gaute Blomqvist, Donald Pauliny, Angela Wagner, Richard H. |
author_sort |
Grønstøl, Gaute |
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 Publishing |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4632532/ https://doi.org/10.1098/rsos.140409 |
genre |
Vanellus vanellus |
genre_facet |
Vanellus vanellus |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4632532/ http://dx.doi.org/10.1098/rsos.140409 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ © 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsos.140409 |
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Royal Society Open Science |
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2 |
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6 |
container_start_page |
140409 |
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1766232280471175168 |