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Life-history and genetic relationships in cooperatively breeding dwarf mongoose groups

Josh J. Arbon Orcid Logo, Amy Morris-Drake Orcid Logo, Julie M. Kern Orcid Logo, Gabrielle M. K. Howell Orcid Logo, Jeanette Wentzel Orcid Logo, Andrew N. Radford Orcid Logo, Hazel Nichols Orcid Logo

Royal Society Open Science, Volume: 11, Issue: 10, Start page: 241125

Swansea University Author: Hazel Nichols Orcid Logo

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DOI (Published version): 10.1098/rsos.241125

Abstract

Cooperatively breeding societies show distinct interspecific variations in social and genetic organization. Long-term studies provide invaluable data to further our understanding of the evolution and maintenance of cooperative breeding but have also demonstrated how variation exists within species....

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Published in: Royal Society Open Science
ISSN: 2054-5703
Published: The Royal Society 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa67714
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spelling v2 67714 2024-09-18 Life-history and genetic relationships in cooperatively breeding dwarf mongoose groups 43ba12986bd7754484874c73eed0ebfe 0000-0002-4455-6065 Hazel Nichols Hazel Nichols true false 2024-09-18 BGPS Cooperatively breeding societies show distinct interspecific variations in social and genetic organization. Long-term studies provide invaluable data to further our understanding of the evolution and maintenance of cooperative breeding but have also demonstrated how variation exists within species. Here we integrate life-history, behavioural and genetic data from a long-term study of dwarf mongooses Helogale parvula in South Africa to document mating, breeding, dispersal and relatedness patterns in this population and compare them to those found in a Tanzanian population at the other extreme of the species’ range. Our genetic data reveal high levels of reproductive skew, above that expected through observational data. Dispersal was male-biased and was seen more frequently towards the onset of the breeding season, but females also regularly switched between groups. These patterns of breeding and dispersal resulted in a genetically structured population: individuals were more related to groupmates than outsiders, apart from the unrelated dominant pair, ultimately resulting in reduced inbreeding risk. Our results also demonstrate that dwarf mongooses are largely consistent in their social structure across their sub-Saharan distribution. This work demonstrates the direct and indirect pathways to reproductive success for dwarf mongooses and helps to explain the maintenance of cooperative breeding in the species. Journal Article Royal Society Open Science 11 10 241125 The Royal Society 2054-5703 cooperative breeding, social evolution, dispersal, genetic relatedness, helping behaviour, reproductive skew 2 10 2024 2024-10-02 10.1098/rsos.241125 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Another institution paid the OA fee The Dwarf Mongoose Research Project was supported by grants from the European Research Council (682253) and the Natural Environment Research Council (NE/W00545X/1) awarded to ANR. 2024-10-23T16:48:20.4598020 2024-09-18T11:17:57.2618953 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Josh J. Arbon 0000-0002-8509-4362 1 Amy Morris-Drake 0000-0003-4243-4651 2 Julie M. Kern 0000-0002-7619-8653 3 Gabrielle M. K. Howell 0009-0002-8105-1987 4 Jeanette Wentzel 0000-0002-4236-3171 5 Andrew N. Radford 0000-0001-5470-3463 6 Hazel Nichols 0000-0002-4455-6065 7 67714__31536__b6016374441845818b84bb1b7313805a.pdf arbon-et-al-2024-life-history-and-genetic-relationships-in-cooperatively-breeding-dwarf-mongoose-groups.pdf 2024-10-04T11:07:59.0547857 Output 1122212 application/pdf Version of Record true © 2024 The Author(s). Distrubuted under the terms of the Creative Commons Attribution License. true eng http://creativecommons.org/licenses/by/4.0/
title Life-history and genetic relationships in cooperatively breeding dwarf mongoose groups
spellingShingle Life-history and genetic relationships in cooperatively breeding dwarf mongoose groups
Hazel Nichols
title_short Life-history and genetic relationships in cooperatively breeding dwarf mongoose groups
title_full Life-history and genetic relationships in cooperatively breeding dwarf mongoose groups
title_fullStr Life-history and genetic relationships in cooperatively breeding dwarf mongoose groups
title_full_unstemmed Life-history and genetic relationships in cooperatively breeding dwarf mongoose groups
title_sort Life-history and genetic relationships in cooperatively breeding dwarf mongoose groups
author_id_str_mv 43ba12986bd7754484874c73eed0ebfe
author_id_fullname_str_mv 43ba12986bd7754484874c73eed0ebfe_***_Hazel Nichols
author Hazel Nichols
author2 Josh J. Arbon
Amy Morris-Drake
Julie M. Kern
Gabrielle M. K. Howell
Jeanette Wentzel
Andrew N. Radford
Hazel Nichols
format Journal article
container_title Royal Society Open Science
container_volume 11
container_issue 10
container_start_page 241125
publishDate 2024
institution Swansea University
issn 2054-5703
doi_str_mv 10.1098/rsos.241125
publisher The Royal Society
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 1
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description Cooperatively breeding societies show distinct interspecific variations in social and genetic organization. Long-term studies provide invaluable data to further our understanding of the evolution and maintenance of cooperative breeding but have also demonstrated how variation exists within species. Here we integrate life-history, behavioural and genetic data from a long-term study of dwarf mongooses Helogale parvula in South Africa to document mating, breeding, dispersal and relatedness patterns in this population and compare them to those found in a Tanzanian population at the other extreme of the species’ range. Our genetic data reveal high levels of reproductive skew, above that expected through observational data. Dispersal was male-biased and was seen more frequently towards the onset of the breeding season, but females also regularly switched between groups. These patterns of breeding and dispersal resulted in a genetically structured population: individuals were more related to groupmates than outsiders, apart from the unrelated dominant pair, ultimately resulting in reduced inbreeding risk. Our results also demonstrate that dwarf mongooses are largely consistent in their social structure across their sub-Saharan distribution. This work demonstrates the direct and indirect pathways to reproductive success for dwarf mongooses and helps to explain the maintenance of cooperative breeding in the species.
published_date 2024-10-02T16:48:18Z
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