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Task-dependent workload adjustment of female breeders in a cooperatively breeding fish

Tanaka, Hirokazu ; Frommen, Joachim G. ; Engqvist, Leif ; Kohda, Masanori ; Taborsky, Michael

In: Behavioral Ecology, 2018, vol. 29, no. 1, p. 221-229

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    Titre
    • Task-dependent workload adjustment of female breeders in a cooperatively breeding fish
    Auteur
    • Tanaka, Hirokazu. Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Switzerland
    • Frommen, Joachim G.. Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Switzerland
    • Engqvist, Leif. Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Switzerland
    • Kohda, Masanori. Laboratory of Animal Sociology, Department of Biology and Geosciences, Graduate School of Science, Osaka City University, Sumiyoshi, Japan
    • Taborsky, Michael. Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Behavioral Ecology, 2018, vol. 29, no. 1, p. 221-229. Oxford University Press
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:331023
    Summary
    Helpers in cooperative breeders support the dominants in raising offspring. Such support is expected to be task dependent and to increase breeders' current or future reproductive success. We show that breeder females adjust their workload depending on the task in a cooperatively breeding fish by reducing their territory defense and broodcare according to the received help. However, they consistently showed the same amount of territory maintenance, indicating both load-lightening and additive effects taking place.