diandry

Diandry is a term that refers to a specific type of social behavior observed in some species of ants. It describes a situation where a colony has two or more reproductive queens that coexist and actively lay eggs. This is in contrast to the more common monogynous social structure where a colony typically has only one queen.

The presence of multiple queens, or polyandry, can lead to larger colony sizes and a more robust reproductive output. However, it also presents challenges, such as potential competition between queens for resources and space, and the risk of increased genetic relatedness within the colony, which can sometimes be disadvantageous. The mechanisms by which diandry is regulated, including queen recognition, aggression suppression, and resource allocation, are areas of ongoing scientific research.

The occurrence of diandry varies significantly across different ant species and even within populations of the same species. Factors such as environmental conditions, colony founding strategies, and genetic predispositions can all influence whether a colony adopts a diandrous social system. Understanding diandry provides valuable insights into the evolution of sociality and the complex dynamics of insect societies.