4.5 Article

Relatedness modulates reproductive competition among queens in ant societies with multiple queens

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Summary: In ant societies, multiple queens may compete over reproduction. The study shows that in Formica fusca ants, queens adjust their egg laying rate based on the kinship of their nestmates. When exposed to odor of a highly fecund non-kin queen, queens increase their egg laying rate, while if the queen is a close relative, queens decrease their egg laying rate to reduce competition. This demonstrates that cooperative breeding behaviors in Formica fusca queens are influenced by kinship and fecundity of others.

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