Multiple mating reveals complex patterns of assortative mating by personality and body size

The Journal of Animal Ecology
Pierre-Olivier MontiglioAndrew Sih

Abstract

Understanding patterns of non-random mating is central to predicting the consequences of sexual selection. Most studies quantifying assortative mating focus on testing for correlations among partners' phenotypes in mated pairs. Few studies have distinguished between assortative mating arising from preferences for similar partners (expressed by all or a subset of the population) vs. from phenotypic segregation in the environment. Also, few studies have assessed the robustness of assortative mating against temporal changes in social conditions. We tracked multiple matings by stream water striders (Aquarius remigis) across variable social conditions to investigate mating patterns by both body size and behavioural type (personality). We documented temporal changes in partner availability and used a mixed model approach to analyse individual behaviours and changes in mating status recorded on an hourly basis. We assessed whether all or only a subset of individuals in the population expressed a tendency to mate with similar phenotypes. Our analyses took into account variation in the level of competition and in the phenotypes of available partners. Males and females exhibited significant assortative mating by body size: the largest ma...Continue Reading

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Citations

Mar 14, 2018·Biological Reviews of the Cambridge Philosophical Society·Adriana A Maldonado-ChaparroDamien R Farine
Dec 20, 2017·Proceedings of the National Academy of Sciences of the United States of America·Grant C McDonald, Tommaso Pizzari
Jan 8, 2020·Molecular Psychiatry·Francis James A Gordovez, Francis J McMahon
Apr 7, 2018·Behavioral Ecology : Official Journal of the International Society for Behavioral Ecology·Thomas M Houslay, Alastair J Wilson
Feb 23, 2019·PLoS Biology·Daiping WangBart Kempenaers
Feb 26, 2021·The Journal of Animal Ecology·Allison M RothTommaso Pizzari
Jul 28, 2021·Journal of Evolutionary Biology·Benedikt HoltmannShinichi Nakagawa
Nov 24, 2021·Biology Letters·Thomas M M VersluysVincent Savolainen

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