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Forward Thinking Pest Control

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Forward Thinking Pest Control

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EHS Ant Control, MA, RI

Arizona State University researchers developed a new computer model to manipulate several ant behaviors and to see how they affected the social structure of a colony. This model explains the complexity and diversity of social hierarchies in ants.

In many animal species, physical battles and other aggressive acts determine a certain “pecking order.” In the world of ants, fights that involve biting and restraining often determine winners and losers.

But what about battles that do not result in a pecking order, but instead lead to groups of winners and losers? Does this require a new type of aggressive interaction?

“We were curious as to whether dueling behavior in ants results in a winner and a loser, or if it is a winner-winner interaction that allows workers to express aggression without requiring a loser,” said Jürgen Liebig, associate professor at Arizona State University’s School of Life Sciences and senior author of a new study published in the current online issue of American Naturalist.

To help answer this question, the researchers developed a new computer model to manipulate several ant behaviors and to see how they affected the social structure of a colony. This model explains the complexity and diversity of social hierarchies in ants.

The scientists began by examining the behaviors and social hierarchy of the Indian jumping ant (Harpegnathos saltator). When a colony’s queen dies, the female workers engage in ritual fights to establish dominance. Although these battles can be fierce, they rarely result in physical injury to the worker ants. Ultimately, a group of approximately 10 workers will establish dominance and become a cadre of worker queens called “gamergates.”

A social hierarchy like this is called a “shared-dominance hierarchy.” Other ant societies establish pecking orders in which one individual is dominant and all others share a subordinate status.

To learn more about ants, contact EHS Pest.

Source: Arizona State University Press Release


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