Abstract
The first occurrence of Helix lucorum Linnaeus in the Czech Republic was reported 12 years ago, at the closed train station Žižkov in Prague. A part of the station is a ruderal habitat while large patches are covered with partly damaged concrete. At the site where it was first recorded, and where the density of H. lucorum is still the highest, this invasive snail has now almost completely replaced the original H. pomatia Linnaeus. However, it has not expanded either inside or outside the station area.
Highlights
IntroductionHelix lucorum Linnaeus, 1758 (Eupulmonata, Helicidae) is an invasive species
Helix lucorum Linnaeus, 1758 (Eupulmonata, Helicidae) is an invasive species. It was first recorded in Prague in 2008, within the urban heat island, at the closed train freight station Žižkov (Horsák et al 2010)
Outside Europe, H. lucorum was found in North America, northern Africa and China (GBIF Secretariat 2019)
Summary
Helix lucorum Linnaeus, 1758 (Eupulmonata, Helicidae) is an invasive species. It was first recorded in Prague in 2008, within the urban heat island, at the closed train freight station Žižkov (Horsák et al 2010). The species was reported from the same locality four (Peltanová et al 2012a) and ten years later (Korábek et al 2018). H. lucorum is included in the Czech Republic check-list and in the distribution maps of the molluscs of the Czech and Slovak Republics (Horsák et al 2021). It is assumed that it does not form subspecies. The Crimean form of H. lucorum is not regarded as a subspecies, but as a conchologically distinct population (Korábek et al 2018)
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