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The emergence and development of behavioral individuality in clonal fish

Author

Listed:
  • Kate L. Laskowski

    (Leibniz Institute of Freshwater Ecology and Inland Fisheries
    University of California Davis)

  • David Bierbach

    (Leibniz Institute of Freshwater Ecology and Inland Fisheries
    Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin
    Cluster of Excellence “Science of Intelligence,” Technical University of Berlin, Berlin)

  • Jolle W. Jolles

    (Centre for Ecological Research and Forestry Applications (CREAF), Campus UAB. Edifici C.)

  • Carolina Doran

    (Leibniz Institute of Freshwater Ecology and Inland Fisheries)

  • Max Wolf

    (Leibniz Institute of Freshwater Ecology and Inland Fisheries
    Cluster of Excellence “Science of Intelligence,” Technical University of Berlin, Berlin)

Abstract

Behavioral individuality is a ubiquitous phenomenon in animal populations, yet the origins and developmental trajectories of individuality, especially very early in life, are still a black box. Using a high-resolution tracking system, we mapped the behavioral trajectories of genetically identical fish (Poecilia formosa), separated immediately after birth into identical environments, over the first 10 weeks of their life at 3 s resolution. We find that (i) strong behavioral individuality is present at the very first day after birth, (ii) behavioral differences at day 1 of life predict behavior up to at least 10 weeks later, and (iii) patterns of individuality strengthen gradually over developmental time. Our results establish a null model for how behavioral individuality can develop in the absence of genetic and environmental variation and provide experimental evidence that later-in-life individuality can be strongly shaped by factors pre-dating birth like maternal provisioning, epigenetics and pre-birth developmental stochasticity.

Suggested Citation

  • Kate L. Laskowski & David Bierbach & Jolle W. Jolles & Carolina Doran & Max Wolf, 2022. "The emergence and development of behavioral individuality in clonal fish," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-34113-y
    DOI: 10.1038/s41467-022-34113-y
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    References listed on IDEAS

    as
    1. Daniel Witvliet & Ben Mulcahy & James K. Mitchell & Yaron Meirovitch & Daniel R. Berger & Yuelong Wu & Yufang Liu & Wan Xian Koh & Rajeev Parvathala & Douglas Holmyard & Richard L. Schalek & Nir Shavi, 2021. "Connectomes across development reveal principles of brain maturation," Nature, Nature, vol. 596(7871), pages 257-261, August.
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    Cited by:

    1. Ulrike Scherer & Sean M. Ehlman & David Bierbach & Jens Krause & Max Wolf, 2023. "Reproductive individuality of clonal fish raised in near-identical environments and its link to early-life behavioral individuality," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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