Claustral colony founding

Definition

A mode of independent colony foundation in ants in which a single queen (or small group of queens) seals herself in an enclosed cavity, uses only her own metabolic reserves to nourish the first brood, and does not forage outside until the first workers emerge. The queen survives this period by metabolizing her flight muscles and fat stores, converting her body from a dispersal to a reproductive phenotype.

Etymology

From Latin claustrum (enclosed space, barrier) + colony founding; contrasted with non-claustral (or semi-claustral) founding where queens forage during colony establishment.

Example

Atta leafcutter ant queens practice claustral founding: after mating, a queen excavates a small chamber, seals the entrance, and lives entirely on stored energy for 2–3 months while her first nanitic workers develop, emerging only once the fungus garden and worker force are established.

Synonyms

• claustral founding
• closed-chamber founding

Related Terms

• Non-claustral colony founding
• Semi-claustral founding
• Nanitic workers
• Haplometrosis
• Pleometrosis
• Dealation
• Foundress queen

Usage Notes

Strictly contrasts with semi-claustral founding, where queens forage during colony establishment (common in Ponerinae and some Myrmicinae). The term is specific to ants; other eusocial insects (honey bees, termites, vespid wasps) use different founding strategies. Claustral founding is associated with higher queen mortality risk but reduced predation exposure during the vulnerable founding phase.