Organism

Leaf-Cutter Ant

TL;DR

Leaf-cutter ants and their cultivated fungi are obligately mutualistic.

Atta and Acromyrmex

Insect · Central and South American forests

Leaf-cutter ants and their cultivated fungi are obligately mutualistic. The ants provide fungus with fresh plant material and protect it from pathogens and competitors; the fungus provides ants with nutrients including enzymes to digest cellulose that ants cannot produce themselves.

Neither can survive without the other - fungal species exist only in ant colonies, and ants depend entirely on fungus for nutrition. This absolute interdependence eliminates cheating incentives.

Notable Traits of Leaf-Cutter Ant

  • Cultivates fungus gardens
  • Cannot digest cellulose without fungal enzymes
  • Obligate mutualist

Related Mechanisms for Leaf-Cutter Ant