Nepotism mediates enforced cooperation in asymmetric negotiations

García-Ruiz, Irene; Taborsky, Michael

doi:10.1016/j.isci.2024.110334

iScience

2024

DOI: 10.1016/j.isci.2024.110334

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Nepotism mediates enforced cooperation in asymmetric negotiations

Irene García-Ruiz,

Michael Taborsky

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2024

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Fitness drivers of division of labor in vertebrates

García-Ruiz,

Rubenstein

2024

Preprint

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Although division of labor as a means to increase productivity is a common feature in animal social groups, most previous studies have focused almost exclusively on eusocial insects with extreme task partitioning. Empirical evidence of division of labor in vertebrates is scarce, largely because we lack a theoretical framework to explore the conditions under which division of labor is likely to evolve. By explicitly considering alternative helping tasks with varying fitness costs, we model how individual decisions on task specialization may influence the emergence of division of labor under both direct and indirect fitness benefits. Surprisingly, we find that direct survival benefits of living in larger groups are the primary force driving the evolution of cooperation to enhance group productivity, and that indirect fitness benefits derived from related group members are only a non-essential facilitator of more stable forms of division of labor. In addition, we find that division of labor is favored by increasingly harsh environments. Ultimately, our model not only makes key predictions that are consistent with existing empirical data, but also proposes novel avenues for new empirical work in vertebrate and invertebrate systems alike.

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Fitness drivers of division of labor in vertebrates

García-Ruiz,

Rubenstein

2024

Preprint

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Nepotism mediates enforced cooperation in asymmetric negotiations

Cited by 1 publication

References 145 publications

Fitness drivers of division of labor in vertebrates

Fitness drivers of division of labor in vertebrates

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