Meat ant of the colony may deteriorate from overshadowing. Members of an affected meat ant colony later move to a nearby satellite nest that is placed in a suitable area, while invading banded sugar ants fill nest galleries up with a black resinous material. Meat ants sometimes attract cats because of the chemicals they secrete (dihydronepetalactone, isodihydronepetalactone and iridomyrmecin). Meat ants are generally intolerant of myrmecophiles (which are insects or other organisms that share positive interspecies associations with ants) living in their colonies, but "Cyclotorna" larvae are known to dwell in colonies. Although "Sphallomorpha" larvae sometimes prey on workers as discussed earlier,
Meat ant chambers where the population remains during the winter. In the upper areas of the colony, the galleries and shafts only account for 7–10% of nest space. For example, the galleries of excavated colonies occupy whereas the total volume is around . Overall, a nest may dwell extremely deep beneath the soil as excavated nests are as deep as . A diurnal species (active mainly during the day), the meat ant shows minimal interaction with nocturnal ant species when their territories overlap. The meat ant and other members of the "I. purpureus" species group are regarded as a dominant group of