How Do Ants Communicate?

Author: Gabrielle Marks

An ant's main source of communication is through pheromones.

More Info: It is important for social insects like ants to have the ability to communicate to ensure the safety of their colony and to protect their very existence.  Having the ability to communicate with one another as a colony facilitates a quick response to changes in their surroundings necessary for survival.


Ants communicate through their senses and through airborne chemicals known as pheromones.  Pheromones are chemical substances that are secreted externally that influence the behavior of other members of their species.  Ants utilize pheromones for a variety of communication circumstances including mate calling and kin recognition.

Alarm Pheromone

Ants send out an alarm pheromone in cases of distress that function to identify an enemy or alert the other members of the colony to defend the nest.  Depending on the species and the environmental conditions, the alarm pheromone can be detected by other ants in the colony from four to ten centimeters away.

Foraging Communication/Trail Setting

Pheromones are an important part of the food gathering process for ants.  Once an ant finds a renewable food source, it heads back to the nest leaving behind a pheromone trail that will direct other ants in the colony to the food source.  The trail will continue to be marked until the food source is depleted or the colony has identified a more profitable source.

Though this method of foraging communication seems as simple as a breadcrumb trail, it is actually highly evolved and can be significant in regulating colony food collection activities, retaining memory of past food sources, and helping in selecting locations of differing profitability.


Works Cited

Current Biology
Communication in ants
16.15 (2006): 0. Print.

General Entymology
Insect Communication

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"How Do Ants Communicate?." Sophisticated Edge. N.p., n.d. Web. . <>.  

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