|Scientific Name:||Arianta stenzii|
|Species Authority:||(Rossmässler, 1835)|
Arianta arbustorum subspecies stenzii (Rossmässler 1835)
Helix rudis Rossmässler 1837
|Taxonomic Notes:||Klemm (1974) and Gittenberger et al. (2004) treat Arianta stenzii as a subspecies of A. arbustorum.|
|Red List Category & Criteria:||Near Threatened ver 3.1|
|Assessor/s:||Falkner, G., von Proschwitz, T. & Reischutz, P.|
|Reviewer/s:||Neubert, E., Ward, J. & Cuttelod, A.|
Distributional and ecological data known for this species are insufficient and the taxon needs a thorough revision. However, the habitats of this alpine species are under heavily used, and enormous pressure on the species can be supposed. It is therefore listed as Near Threatened (NT).
|Range Description:||The species is found only in the East-Alps in Austria and Italy.|
Native:Austria; Italy (Italy (mainland))
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||The population of this species is unknown.|
|Habitat and Ecology:||This species is found on calcareous scree and boulder slopes on the edge of alpine grassland.|
|Major Threat(s):||The main threat to the species is exploitation of habitats for tourism and pasturing. Tourist activities like skiing, hiking, climbing lead to a serious decline of habitat quality. Another threat to this species is pasturing that might lead to alteration of the natural vegetation with adverse effects, and the intensity of land-use is supposed to be stable or even increasing in the Alps.|
This species is listed in the Red List for Carinthia (Austria) (1999).
Further research is required to assess the species' population and distribution and to ascertain the level of threat to the species from the exploitation of habitats for tourism. Taxonomic uncertainties surrounding the taxon need addressing.
|Citation:||Falkner, G., von Proschwitz, T. & Reischutz, P. 2011. Arianta stenzii. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 10 December 2013.|
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