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Sardohoratia sulcata 

Scope:Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_onStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Littorinimorpha Hydrobiidae

Scientific Name: Sardohoratia sulcata
Species Authority: Manganelli, Bodon, Cianfanelli, Talenti & Giusti, 1998

Assessment Information [top]

Red List Category & Criteria: Critically Endangered (Possibly Extinct) B2ab(iii) ver 3.1
Year Published: 2010
Date Assessed: 2009-12-18
Assessor(s): Cianfanelli, S., Bodon, M., Giusti, F. & Manganelli, G.
Reviewer(s): Seddon, M., Aldridge, D., von Proschwitz, T. & Cuttelod, A.
Contributor(s): Seddon, M.
Justification:
Sardohoratia sulcata is restricted to a single site in Sardinia, where it is threatened by its restricted range (Ruffo and Stoch, 2006). Since it inhabits groundwaters, the species could be affected by anthropogenic groundwater abstraction and/or pollution (Manganelli et al., 1998, 2000).  Given that it only occurs at a single site, it is considered very vulnerable to any human activity that would disturb the groundwater system or the spring. Most records are before 1995. In 1998, Manganelli noted that this species has not been found living at the spring at Su Cologne since it was exploited for water, and the bottom surface of the spring cemented over. Hence, this species is listed as Critically Endangered (Possibly Extinct) B2ab(iii).
Date last seen: 1995

Geographic Range [top]

Range Description: This species is endemic to Italy, specifically found in western Sardinia, where it is only found in the 'Plentiful karstic spring Su Cologne', at San Giovanni, 100m ASL (UTM 32 T NK4260) (Manganelli et al, 1998).
Countries occurrence:
Possibly extinct:
Italy (Sardegna)
Estimated area of occupancy (AOO) - km2: 4
Number of Locations: 1
Lower elevation limit (metres): 100
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is restricted to a small area, so population numbers are presumably relatively low. Most records are before 1995. In 1998, Manganelli noted that this species has not been found living at the spring at Su Cologne since it was exploited for water, and the bottom surface of the spring cemented over.
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This species is restricted to interstitial waters of a spring within a karstic region (Manganelli et al, 1998). It is a strict stygobiont, i.e a species restricted to subterranean groundwater habitats and characterized morphologically by loss or severe reduction of eyes and pigment.
Systems: Freshwater
Continuing decline in area, extent and/or quality of habitat: Yes

Use and Trade [top]

Use and Trade: This species is not known to be traded.

Threats [top]

Major Threat(s): The species is threatened by its restricted range (Ruffo and Stoch, 2006). Since it inhabits groundwaters, the species could be affected by anthropogenic groundwater abstraction and/or pollution (Manganelli et al., 1998, 2000).  GIven that it only occurs at a single site, it is considered very vulnerable to any human activity that would disturb the groundwater system or the spring. In 1998, Manganelli noted that this species has not been found living at the spring at Su Cologne since it was exploited for water, and the bottom surface of the spring cemented over. Hence, this species is listed as Critically Endangered.

Conservation Actions [top]

Conservation Actions: No specific conservation measures are known. It is not known whether the species occurs in any protected areas. The species was considered Near Threatened in the Italian Red List (Manganelli et al., 2000).

Citation: Cianfanelli, S., Bodon, M., Giusti, F. & Manganelli, G. 2010. Sardohoratia sulcata. The IUCN Red List of Threatened Species 2010: e.T155556A4797635. . Downloaded on 27 June 2016.
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