@inbook {1800, title = {Compound nests and mixed colonies of ant species (Hymenoptera, Formicidae) in Sofia, Bulgaria}, booktitle = {L. Penev, J. Niemel{\"a}, D. J. Kotze \& N. Chipev (Eds.). Ecology of the City of Sofia. Species and Communities in an Urban Environment}, year = {2004}, pages = {423{\textendash}428}, abstract = {

Seven nests of coexisting ant species in the city of Sofia and its vicinity were discovered. Five of
these were reported from Zapaden park, one from Knyaz Borisova Gradina and one from Vladaja
village. Two of the nests represented mixed colonies probably with temporary parasitic interaction
between species of the genus Lasius. The compound nests included species from the genera Lasius,
Leptothorax, Myrmica and Formica. Solenopsis fugax was found in lestobiotic interaction with two species
of the genus Lasius within one of the mixed colonies.

}, keywords = {ants, Bulgaria, compound nests, Formicidae, mixed colonies, social interactions}, author = {Antonova, Vera} }