Acicula szigethyannae 

Scope: Global, Europe & Mediterranean
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Architaenioglossa Aciculidae

Scientific Name: Acicula szigethyannae Subai, 1977

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2011
Date Assessed: 2010-06-24
Assessor(s): Fehér, Z.
Reviewer(s): Neubert, E., Ward, J. & Cuttelod, A.

This species lives within a relatively wide range. There are only a few  known subpopulations, but due to the hidden life of the species this number is probably underestimated. There is no reason to suppose that the species' area of occupancy, extent of occurrence, number of locations, number of subpopulations or the number of mature individuals are declining or extremely fluctuating. Therefore, it is assessed as Least Concern (LC).

This species has also been assessed at the regional level as:
EU27 regional assessment: Least Concern (LC) at the level of the 27 member states of the European Union.
European regional assessment: Least Concern (LC).
Mediterranean regional assessment: Least Concern (LC).

Geographic Range [top]

Range Description:This species is distributed in southern Italy. There is a remote distribution record in Montenegro, near Herceg-Novi (Boeters et al. 1989). Fauna Europaea also indicates this species from Greece. This record is based on a sample collected by Fauer (Epirus, 30 km North of Filipiada, Louros River valley), which could not be reinforced and thus it is considered doubtful (see notes in Subai (1993)).
The Greek and Montenegrin occurrence was not considered when the extent of occurrence (EOO) was calculated.
There are six known locations, but due to the hidden life of this species, this might underestimate the number of subpopulations. Currently there is no reason to suppose that the area of occupancy (AOO), the extent of occurrence (EOO) or the number of locations are declining or extremely fluctuating.
Countries occurrence:
Italy (Italy (mainland)); Montenegro
Additional data:
Estimated area of occupancy (AOO) - km2:24Continuing decline in area of occupancy (AOO):No
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:50000
Continuing decline in extent of occurrence (EOO):NoExtreme fluctuations in extent of occurrence (EOO):No
Number of Locations:6Continuing decline in number of locations:No
Extreme fluctuations in the number of locations:No
Upper elevation limit (metres):300
Range Map:Click here to open the map viewer and explore range.

Population [top]


Due to the hidden life of this species, there are no data on population trend. But there is no reason to suppose that the number of subpopulations or the number of mature individuals are declining or extremely fluctuating.

Current Population Trend:Stable
Additional data:
Continuing decline of mature individuals:No
Extreme fluctuations:NoPopulation severely fragmented:No
Continuing decline in subpopulations:No
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No

Habitat and Ecology [top]

Habitat and Ecology:This species occurs in subterranean part of rocky, mostly limestone, habitats.
Continuing decline in area, extent and/or quality of habitat:No

Threats [top]

Major Threat(s):

This species occurs in the subterranean part of rocky (mostly limestone) habitats. It is a potential threat to this species if the rocks are destroyed by quarrying or from other dangers such as through leaching from waste disposal sites. However the total destruction of the whole habitat is not very likely, therefore this threat is mostly hypothetical.

Conservation Actions [top]

Conservation Actions:

The geographic range of this species is not exactly known and there is hardly any data on its subpopulations. First of all, research activity should focus on these points.

The species is not protected at national level in the countries where it occurs. Known sites are outside of protected areas.

Citation: Fehér, Z. 2011. Acicula szigethyannae. The IUCN Red List of Threatened Species 2011: e.T157062A5027740. . Downloaded on 15 October 2018.
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