Kinship composition in mammals

Understanding the evolution of group-living and cooperation requires information on who animals live and cooperate with. Animals can live with kin, non-kin or both, and kinship structure can influence the benefits and costs of group-living and the evolution of within-group cooperation. One aspect of...

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Main Authors: André S. Pereira, Delphine De Moor, Catarina Casanova, Lauren J. N. Brent
Format: Article
Language:English
Published: The Royal Society 2023-07-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/10.1098/rsos.230486
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author André S. Pereira
Delphine De Moor
Catarina Casanova
Lauren J. N. Brent
author_facet André S. Pereira
Delphine De Moor
Catarina Casanova
Lauren J. N. Brent
author_sort André S. Pereira
collection DOAJ
description Understanding the evolution of group-living and cooperation requires information on who animals live and cooperate with. Animals can live with kin, non-kin or both, and kinship structure can influence the benefits and costs of group-living and the evolution of within-group cooperation. One aspect of kinship structure is kinship composition, i.e. a group-level attribute of the presence of kin and/or non-kin dyads in groups. Despite its putative importance, the kinship composition of mammalian groups has yet to be characterized. Here, we use the published literature to build an initial kinship composition dataset in mammals, laying the groundwork for future work in the field. In roughly half of the 18 species in our sample, individuals lived solely with same-sex kin, and, in the other half, individuals lived with related and unrelated individuals of the same sex. These initial results suggest that it is not rare for social mammals to live with unrelated individuals of the same sex, highlighting the importance of considering indirect and direct fitness benefits as co-drivers of the evolution of sociality. We hope that our initial dataset and insights will spur the study of kinship structure and sociality towards new exciting avenues.
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spelling doaj.art-ace5938deb824ba8a4452595f47ed2b22023-07-19T07:05:34ZengThe Royal SocietyRoyal Society Open Science2054-57032023-07-0110710.1098/rsos.230486Kinship composition in mammalsAndré S. Pereira0Delphine De Moor1Catarina Casanova2Lauren J. N. Brent3Centre for Research in Animal Behavior, University of Exeter, Exeter EX4 4QG, UKCentre for Research in Animal Behavior, University of Exeter, Exeter EX4 4QG, UKResearch Centre for Anthropology and Health, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, PortugalCentre for Research in Animal Behavior, University of Exeter, Exeter EX4 4QG, UKUnderstanding the evolution of group-living and cooperation requires information on who animals live and cooperate with. Animals can live with kin, non-kin or both, and kinship structure can influence the benefits and costs of group-living and the evolution of within-group cooperation. One aspect of kinship structure is kinship composition, i.e. a group-level attribute of the presence of kin and/or non-kin dyads in groups. Despite its putative importance, the kinship composition of mammalian groups has yet to be characterized. Here, we use the published literature to build an initial kinship composition dataset in mammals, laying the groundwork for future work in the field. In roughly half of the 18 species in our sample, individuals lived solely with same-sex kin, and, in the other half, individuals lived with related and unrelated individuals of the same sex. These initial results suggest that it is not rare for social mammals to live with unrelated individuals of the same sex, highlighting the importance of considering indirect and direct fitness benefits as co-drivers of the evolution of sociality. We hope that our initial dataset and insights will spur the study of kinship structure and sociality towards new exciting avenues.https://royalsocietypublishing.org/doi/10.1098/rsos.230486relatednessgroup-livingcooperationsocialitypedigreekinship
spellingShingle André S. Pereira
Delphine De Moor
Catarina Casanova
Lauren J. N. Brent
Kinship composition in mammals
Royal Society Open Science
relatedness
group-living
cooperation
sociality
pedigree
kinship
title Kinship composition in mammals
title_full Kinship composition in mammals
title_fullStr Kinship composition in mammals
title_full_unstemmed Kinship composition in mammals
title_short Kinship composition in mammals
title_sort kinship composition in mammals
topic relatedness
group-living
cooperation
sociality
pedigree
kinship
url https://royalsocietypublishing.org/doi/10.1098/rsos.230486
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AT delphinedemoor kinshipcompositioninmammals
AT catarinacasanova kinshipcompositioninmammals
AT laurenjnbrent kinshipcompositioninmammals