@article {1803, title = {Changes in the zoogeographical structure of ants (Hymenoptera: Formicidae) caused by urban pressure in the Sofia region (Bulgaria)}, journal = {Myrmecological News}, volume = {8}, year = {2006}, pages = {271{\textendash}276}, abstract = {

A comparison of the zoogeographical peculiarities of the myrmecofauna in urban and non-urban habitats in Sofia region is performed. The proportion of the widespread Holarctic species was twice as high in the urban as compared to the non-urban sites. Also Euro-Caucasian elements are well represented in the urban sites. The share of South-Transpalaearctic, Eurasian steppe and Boreo-Montane elements is low or such elements are absent from the urban sites.

}, keywords = {ants, Bulgaria, Formicidae, urban landscape, zoogeography}, author = {Antonova, Vera and Penev, Lyubomir} } @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} } @article {1787, title = {Catalogue of the ants (Hymenoptera, Formicidae) of Bulgaria}, journal = {ZooKeys}, volume = {62}, year = {2010}, month = {15 October 2010}, pages = {124}, chapter = {1}, abstract = {

The present catalogue of the ants (Hymenoptera, Formicidae) of Bulgaria is made on a base of critical
reconsideration of literature (covering the period from 1892 till 2009 and part of 2010) as well as on
examination of the authors\&$\#$39; and several museum\&$\#$39;s collections. A lot of data were omitted in the previous
Bulgarian monograph on ants, lots of new data were recently added and many important additions and
alterations were made due to taxonomic revisions of Eurasian Formicidae during the last three decades.
Two new species are reported for the country [Temnothorax graecus (Forel, 1911) and Temnothorax cf. korbi
(Emery, 1924)].
This catalogue contains a list of 163 ant species belonging to 40 genera of 6 subfamilies now known
from Bulgaria. Synonyms and information on the previously reported names in relevant publications are
given. Known localities of the species are grouped by geographic regions. Maps with concrete localities or
regions for each species were prepared. The conservation status of 13 ant species is given as they are includ-
ed in IUCN Red List of Threatened Species and Bulgarian Biodiversity Act. In comparison with adjacent
Balkan regions the ant fauna of Bulgaria is quite rich and its core is composed of South European elements.

}, keywords = {ants, Bulgaria, catalogue, conservation status, fauna, Formicidae, geographical distribution, new records}, author = {Lapeva-Gjonova, Albena and Antonova, Vera and Radchenko, Alexander G and Atanasova, Maria} }