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The benefits of grouping as a main driver of social evolution in a halictine bee

Over the past decade, the cause of sociality has been much debated. Inclusive fitness [br in Hamilton’s rule (br − c > 0)] has been criticized but is still useful in the organization of a framework by elucidating mechanisms through which br (benefit × relatedness) becomes larger than c (cost). Th...

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Autores principales: Ohkubo, Yusaku, Yamamoto, Tatsuhiro, Ogusu, Natsuki, Watanabe, Saori, Murakami, Yuuka, Yagi, Norihiro, Hasegawa, Eisuke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6170040/
https://www.ncbi.nlm.nih.gov/pubmed/30306126
http://dx.doi.org/10.1126/sciadv.1700741
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author Ohkubo, Yusaku
Yamamoto, Tatsuhiro
Ogusu, Natsuki
Watanabe, Saori
Murakami, Yuuka
Yagi, Norihiro
Hasegawa, Eisuke
author_facet Ohkubo, Yusaku
Yamamoto, Tatsuhiro
Ogusu, Natsuki
Watanabe, Saori
Murakami, Yuuka
Yagi, Norihiro
Hasegawa, Eisuke
author_sort Ohkubo, Yusaku
collection PubMed
description Over the past decade, the cause of sociality has been much debated. Inclusive fitness [br in Hamilton’s rule (br − c > 0)] has been criticized but is still useful in the organization of a framework by elucidating mechanisms through which br (benefit × relatedness) becomes larger than c (cost). The bee Lasioglossum baleicum is suitable for investigation of this issue because of the sympatric occurrence of both social and solitary nesting in its populations. We show that a large part (approximately 92%) of the inclusive fitness of a eusocial worker can be attributed to the benefits of grouping. A 1.5-fold relatedness asymmetry benefit in singly mated haplo-diploids explains a small part (approximately 8.5%) of the observed inclusive fitness. Sociality enables this species to conduct foraging and nest defense simultaneously, which is not the case in solitary nests. Our results indicate that this benefit of grouping is the main source of the increased inclusive fitness of eusocial workers.
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spelling pubmed-61700402018-10-10 The benefits of grouping as a main driver of social evolution in a halictine bee Ohkubo, Yusaku Yamamoto, Tatsuhiro Ogusu, Natsuki Watanabe, Saori Murakami, Yuuka Yagi, Norihiro Hasegawa, Eisuke Sci Adv Research Articles Over the past decade, the cause of sociality has been much debated. Inclusive fitness [br in Hamilton’s rule (br − c > 0)] has been criticized but is still useful in the organization of a framework by elucidating mechanisms through which br (benefit × relatedness) becomes larger than c (cost). The bee Lasioglossum baleicum is suitable for investigation of this issue because of the sympatric occurrence of both social and solitary nesting in its populations. We show that a large part (approximately 92%) of the inclusive fitness of a eusocial worker can be attributed to the benefits of grouping. A 1.5-fold relatedness asymmetry benefit in singly mated haplo-diploids explains a small part (approximately 8.5%) of the observed inclusive fitness. Sociality enables this species to conduct foraging and nest defense simultaneously, which is not the case in solitary nests. Our results indicate that this benefit of grouping is the main source of the increased inclusive fitness of eusocial workers. American Association for the Advancement of Science 2018-10-03 /pmc/articles/PMC6170040/ /pubmed/30306126 http://dx.doi.org/10.1126/sciadv.1700741 Text en Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
Ohkubo, Yusaku
Yamamoto, Tatsuhiro
Ogusu, Natsuki
Watanabe, Saori
Murakami, Yuuka
Yagi, Norihiro
Hasegawa, Eisuke
The benefits of grouping as a main driver of social evolution in a halictine bee
title The benefits of grouping as a main driver of social evolution in a halictine bee
title_full The benefits of grouping as a main driver of social evolution in a halictine bee
title_fullStr The benefits of grouping as a main driver of social evolution in a halictine bee
title_full_unstemmed The benefits of grouping as a main driver of social evolution in a halictine bee
title_short The benefits of grouping as a main driver of social evolution in a halictine bee
title_sort benefits of grouping as a main driver of social evolution in a halictine bee
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6170040/
https://www.ncbi.nlm.nih.gov/pubmed/30306126
http://dx.doi.org/10.1126/sciadv.1700741
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