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Eusociality through conflict dissolution via maternal reproductive specialization

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  • Peña, Jorge
  • González-Forero, Mauricio

Abstract

Major evolutionary transitions have produced higher-level individuals constituting new levels of adaptation with extensive effects on the history of life. How such transitions occur remains an outstanding question. We show that a major transition can happen from ancestral exploitation triggering specialization that eventually dissolves conflict. Specifically, maternal manipulation of off-spring help enables the mother to increase her fertility effort, thereby shifting a parent-offspring conflict over helping to parent-offspring agreement. This process of conflict dissolution requires that helpers alleviate maternal life history trade-offs, and results in reproductive division of labor, high queen fertility, and honest queen signaling suppressing worker reproduction, thus exceptionally recovering diverse features of eusociality. Our results explain how a major evolutionary transition can happen from ancestral conflict.

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  • Peña, Jorge & González-Forero, Mauricio, 2020. "Eusociality through conflict dissolution via maternal reproductive specialization," IAST Working Papers 20-110, Institute for Advanced Study in Toulouse (IAST).
    • Handle: RePEc:tse:iastwp:124742
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