Meat ant some are inquilines and live in the nest commensally. Unused or abandoned areas inside colonies are sometimes occupied by other species of ants and in some cases, termites. Meat ants may deliberately destroy the colonies of the termite "Amitermes laurensis" if competition between the two intensify. Meat ants play an important role in seed dispersal. A meat ant colony is capable of dispersing 334,000 individual bellyache bush seeds per hectare, which shows a strong ant-seed relationship among the two. Meat ants are able to kill poisonous cane toads, an introduced pest, as the toxins exuded by toad, that usually kill
Fire ant takes care of regular tasks (the main tasks in a colony are caring for the eggs/larvae/pupae, cleaning the nest, and foraging for food). However, "Solenopsis daguerrei" colonies contain no workers, as they are considered social parasites. Although most fire ant species do not bother people and are not invasive, "Solenopsis invicta", known in the United States as the red imported fire ant (or RIFA) is an invasive pest in many areas of the world, notably the United States, Australia, China and Taiwan. The RIFA was believed to have been accidentally introduced to these countries via shipping crates, particularly with Australia