Basic survey on the occurrence of the narrow diaper screw Vertigo angustior

The narrow diaper snail Vertigo angustior is listed in Annex II of the Fauna Flora habitat. Directive cited. For so-called FFH species, long-term survival in Protected areas are guaranteed. A deterioration of the To prevent conservation status, there is a monitoring and reporting obligation for the EU Member States. In the course of the basic survey around Lake Neusiedl, selected habitats were Looking for this very small snail species. She was in eight places in the Area of the west and north shores, in the Seewinkel and in the Hanság it was detected not yet found. The conservation status of the populations is largely as excellent to judge well. Coincidentally, a population of Vertigo was also moulinsiana, another FFH species, discovered. So far, this is the only place to find the Burgenland, where the species is still alive. Out of a total of 30 mollusc species, 19 are not at risk in Austria (LC); three species threatens to endanger (NT: Pupilla muscorum, Truncatellina cylindrica and Vertigo antivertigo), three more are at risk (VU: Anisus spirorbis, Physa fontinalis and Segmentina nitida), three are highly endangered (EN: Aplexa hypnorum, Vallonia enniensis and Vertigo moulinsiana) and one is at risk of extinction (CR: Valvata macrostoma). Euconulus praticola could not be classified due to the lack of data (DD).