Adaptive significance of affiliative behaviour differs between sexes in a wild reptile population

Coralie Delme; Nicola Jackson; Barbara Class; K Strickland; Dominique Potvin; C H Frère

doi:10.1098/rspb.2023.0805

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Adaptive significance of affiliative behaviour differs between sexes in a wild reptile population

Journal article

Peer reviewed

Adaptive significance of affiliative behaviour differs between sexes in a wild reptile population

Coralie Delme, Nicola Jackson, Barbara Class, K Strickland, Dominique Potvin and C H Frère

Royal Society of London. Proceedings B. Biological Sciences , Vol.290(2001), pp.1-9

2023

DOI: https://doi.org/10.1098/rspb.2023.0805

PMID: 37339740

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Abstract

behavioural syndromes

eastern water dragon

fitness

multivariate mixed models

social behaviour

wild population

In recent years, we have begun to appreciate that social behaviours might exhibit repeatable among-individual variation. Such behavioural traits may even covary and have critical evolutionary implications. Importantly, some social behaviours such as aggressiveness have been shown to provide fitness benefits, including higher reproductive success and survival. However, fitness consequences of affiliative behaviours, especially between or among sexes, can be more challenging to establish. Using a longitudinal behavioural dataset (2014-2021) collected on eastern water dragons (Intellagama lesueurii), we investigated whether various aspects of affiliative behaviour (i) were repeatable across years, (ii) covaried with each other at the among-individual level, and (iii) influenced individuals' fitness. In particular, we considered affiliative behaviours towards opposite-sex and same-sex conspecifics separately. We found that social traits were repeatable and covaried with each other similarly for both sexes. More notably, we found that male reproductive success was positively correlated with the number of female associates and the proportion of time spent with females, while females' reproductive success was not correlated with any of the measured social behaviour metrics. Overall, these findings suggest that selection may be acting differently on social behaviour of male and female eastern water dragons.

Details

Title: Adaptive significance of affiliative behaviour differs between sexes in a wild reptile population
Authors: Coralie Delme (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
Nicola Jackson (Author) - University of Queensland
Barbara Class (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
K Strickland (Author) - University of Edinburgh
Dominique Potvin (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
C H Frère (Author) - University of Queensland
Publication details: Royal Society of London. Proceedings B. Biological Sciences , Vol.290(2001), pp.1-9
Publisher: The Royal Society Publishing
DOI: 10.1098/rspb.2023.0805
ISSN: 1471-2954
PMID: 37339740
Organisation Unit: School of Science, Technology and Engineering; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99735295402621
Output Type: Journal article

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