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

Hazel Nichols Orcid Logo

Royal Society Open Science

Swansea University Author: Hazel Nichols Orcid Logo

Abstract

Cooperatively breeding societies show distinct interspecific variation in social andgenetic organisation. Long-term studies provide invaluable data to further ourunderstanding of the evolution and maintenance of cooperative breeding but have alsodemonstrated how variation exists within species. Here...

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Published in: Royal Society Open Science
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URI: https://cronfa.swan.ac.uk/Record/cronfa67714
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first_indexed 2024-09-18T10:20:57Z
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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 variation in social andgenetic organisation. Long-term studies provide invaluable data to further ourunderstanding of the evolution and maintenance of cooperative breeding but have alsodemonstrated how variation exists within species. Here we integrate life-history,behavioural and genetic data from a long-term study of dwarf mongooses Helogaleparvula in South Africa to document mating, breeding, dispersal and relatedness patternsin this population and compare them to those found in a Tanzanian population at theother extreme of the species’ range. Our genetic data reveal high levels of reproductiveskew, above that expected through observational data. Dispersal was male-biased andwas seen more frequently towards the onset of the breeding season, but females alsoregularly switched between groups. These patterns of breeding and dispersal resulted ina genetically structured population: individuals were more related to groupmates thanoutsiders, apart from the unrelated dominant pair, ultimately resulting in reducedinbreeding risk. Our results also demonstrate that dwarf mongooses are largelyconsistent in their social structure across their sub-Saharan distribution. This workdemonstrates the direct and indirect pathways to reproductive success for dwarfmongooses and helps to explain the maintenance of cooperative breeding in the species. Journal Article Royal Society Open Science 0 0 0 0001-01-01 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. 2024-09-18T11:20:58.3197076 2024-09-18T11:17:57.2618953 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Hazel Nichols 0000-0002-4455-6065 1
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 Hazel Nichols
format Journal article
container_title Royal Society Open Science
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
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 0
active_str 0
description Cooperatively breeding societies show distinct interspecific variation in social andgenetic organisation. Long-term studies provide invaluable data to further ourunderstanding of the evolution and maintenance of cooperative breeding but have alsodemonstrated how variation exists within species. Here we integrate life-history,behavioural and genetic data from a long-term study of dwarf mongooses Helogaleparvula in South Africa to document mating, breeding, dispersal and relatedness patternsin this population and compare them to those found in a Tanzanian population at theother extreme of the species’ range. Our genetic data reveal high levels of reproductiveskew, above that expected through observational data. Dispersal was male-biased andwas seen more frequently towards the onset of the breeding season, but females alsoregularly switched between groups. These patterns of breeding and dispersal resulted ina genetically structured population: individuals were more related to groupmates thanoutsiders, apart from the unrelated dominant pair, ultimately resulting in reducedinbreeding risk. Our results also demonstrate that dwarf mongooses are largelyconsistent in their social structure across their sub-Saharan distribution. This workdemonstrates the direct and indirect pathways to reproductive success for dwarfmongooses and helps to explain the maintenance of cooperative breeding in the species.
published_date 0001-01-01T11:20:57Z
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score 11.028798

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