Independence and interdependence in collective decision making: An agent-based model of nest-site choice by honeybee swarms

Christian List, Christian Elsholtz, Thomas D. Seeley

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    Abstract

    Condorcet's jury theorem shows that when the members of a group have noisy but independent information about what is best for the group as a whole, majority decisions tend to outperform dictatorial ones. When voting is supplemented by communication, however, the resulting interdependencies between decision makers can strengthen or undermine this effect: they can facilitate information pooling, but also amplify errors. We consider an intriguing non-human case of independent information pooling combined with communication: the case of nest-site choice by honeybee (Apis mellifera) swarms. It is empirically well documented that when there are different nest sites that vary in quality, the bees usually choose the best one. We develop a new agent-based model of the bees' decision process and show that its remarkable reliability stems from a particular interplay of independence and interdependence between the bees.

    Original languageEnglish
    Pages (from-to)755-762
    Number of pages8
    JournalPhilosophical Transactions of the Royal Society / B
    Volume364
    Issue number1518
    DOIs
    Publication statusPublished - 27 Mar 2009

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    Keywords

    • Agent-based model
    • Condorcet's jury theorem
    • Group decision making
    • Honeybees
    • Information pooling
    • Nest-site choice

    ASJC Scopus subject areas

    • Agricultural and Biological Sciences(all)
    • Biochemistry, Genetics and Molecular Biology(all)

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