On the arrival of the Asian invader ant Lasius neglectus in Belgium (Hymenoptera Formicidae)
2002
Dekoninck, W. | Baere, C. de | Mertens, J. | Maelfait, J.P. (Ghent Univ., Ghent (Belgium). Dept. of Biology. Unit of animal Ecology, Zoogeography and Nature conservation)
Lasius neglectus Van Loon, Boomsma and Andrasfalvy 1990, a new ant species for Belgium was discovered in the city of Ghent. Grass lawn edges, stones, footpaths, gravel roads, bare sand and even concrete floors were used as nest places. This most recently known site (Citadelpark in Ghent) of occurrence in Europe (51,02° N; 03,44° E) shows that the species went up north-westwards and may perhaps be found more northwards in the near future. Assumptions on the arrival and expending-history of the species in Ghent and Europe are made. In the microhabitats where this pest species can settle, Lasius neglectus impoverished the fauna to an almost single species ant fauna where only huge nests of this species are found. As Lasius neglectus can assume to be a potential threat for the native ant fauna, its expansion and the environmental factors determining this process should be investigated in Belgium.
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