@article {2002, title = {Inconvenient hyperdiversity {\textendash} the traditional concept of {\textquotedblleft}Pheidole pallidula{\textquotedblright} includes four cryptic species (Hymenoptera: Formicidae)}, journal = {Soil orranisms}, volume = {88}, year = {2016}, pages = {17}, chapter = {1}, author = {Seifert, Bernhard} } @article {1930, title = {Collapse of the invasive garden ant, Lasius neglectus, populations in four European countries}, journal = {Biological invasions}, volume = {18}, year = {2016}, pages = {3131}, chapter = {3127}, abstract = {

The invasive garden ant Lasius neglectus (Hymenoptera: Formicidae) has been spreading rapidly in Europe ever since the 1990s. This ant established enormous supercolonies in many European cities and poses a serious threat to the local native faunas. The spread of this species has not slowed down in the last decades, but in the recent years the sizes of the known L. neglectus populations have generally been declining or have stagnated. For 29 supercolonies checked in four countries, in 10 cases L. neglectus individuals have not been found on the former area of their occurrence. On the other hand, only two supercolonies have expanded. In this paper, we summarize these monitoring data collected by the personal independent, diligent monitoring activities of myrmecologists on populations of the invasive garden ant in Bulgaria, Hungary, Poland and Spain. The reasons for this collapse are thought to be: (1) depletion of the local resources, (2) gradation of pathogens and (social)parasites, (3) climatic factors, (4) intra-population mechanisms, (5) confrontation with highly competitive native species, and (6) lack of suitable nesting microhabitats. As similar phenomena were observed in the cases of supercolonies of other invasive ant species, it seems that they decline more generally than has been thought.

}, author = {Andr{\'a}s Tartally and Vera Antonova and Xavier Espadaler and S{\'a}ndor Cs{\H o}sz and Wojciech Czechowski} } @article {1897, title = {The Westpalaearctic Lasius paralienus complex (Hymenoptera: Formicidae) contains three species}, journal = {Zootaxa}, volume = {4132}, year = {2016}, pages = {58}, chapter = { 44}, abstract = {

Application of Numeric Morphology-Based Alpha-Taxonomy (NUMOBAT) demonstrated the existence of three cryptic species within the Westpalaearctic Lasius paralienus species complex: L. paralienus Seifert, 1992, having a wider European distribution north to Sweden, L. casevitzi sp. nov., an endemic of Corsica, and Lasius bombycina sp. nov. from southeast Central Europe, the Balkans and Asia Minor. Hierarchical NC-Ward clustering and non-hierarchical NC-k-means clustering of 16 morphological characters resulted in 98.7\% identical classifications within 76 examined nest samples of the three species. The classification error in 180 worker individuals was 0\% in a linear discriminant analysis (LDA) and 1.3\% in a LOOCV-LDA. Differential characters to other species groups and an identification key of the six European members of the Lasius alienus F\örster species group are provided.

}, keywords = {endemic, morphometry, nest centroid clustering, Numeric morphology-based alpha-taxonomy, sister species}, author = {Seifert, Bernhard and Galkowski, Christophe} } @inbook {1812, title = {Ants (Hymenoptera: Formicidae) from Vrachanska Planina Mountains}, booktitle = {Bechev, D. \& Georgiev, D. (Eds.) Faunistic diversity of Vrachanski Balkan Nature Park.}, year = {2016}, publisher = {ZooNotes, Supplement 3, Plovdiv University Press}, organization = {ZooNotes, Supplement 3, Plovdiv University Press}, address = {Plovdiv}, abstract = {

We give a list of 29 ant species in Vrachanska Planina Mountain from 24 localities. Nine species were confirmed by previously reported data. Among all 19 unpublished species (found in 50\’s of last century and during 2013-2014), 10 are new for the region. Four species are of nature conservation importance.

}, keywords = {ants, Balkans, fauna, protected species}, author = {Antonova, Vera and Lapeva-Gjonova, Albena and Gradinarov, Denis} }