|Red List Category & Criteria:
||Albrecht, C., Bodon, M., Cianfanelli, S., Giusti, F. & Manganelli, G.
||Aldridge, D., von Proschwitz, T., Seddon, M.B. & Cuttelod, A.
This species has a relatively limited range in southern Europe, and is considered Vulnerable in Italy, based on the loss of populations across the country. Given that these populations represent the major centre, with extinction in Switzerland and possible extinction in Lake Ohrid, this supports the evidence to maintain the evaluation as Vulnerable (VU) A2c based on c. 35% decline in populations over the range.
This species has also been assessed at the regional level:
EU27 regional assessment: Vulnerable A2ca at the level of the 27 member States of the European Union
European regional assessment: Vulnerable A2c
Mediterranean regional assessment: Vulnerable A2c
|Range Description:|| The main range of this species is given as Switzerland and Italy in Fauna Europea (Bank et al. 2006; online database), however records of material in Lake Ohrid cited by Nagel and Hoffmeister (1986) may extend the range to Albania and the Former Yugoslavian Republic of Macedonia, so the species also inhabits river systems flowing into the Adriatic seas. This species is in decline in Italy, and in Lake Ohrid, despite intensive recent surveys, only a handful of eroded dead shells have been recorded (C. Albrecht, pers. com., 2009). Miensis (Triannual Unionid Report no 20, March 2000) reported that some viable populations within its former range of distribution have been rediscovered in northern Italy (Nagel and Hoffmeister 1986) and Croatia (Fischer 1999). |
Graf and Cummings (2007) noted that the range could extend to the Middle-East.
Italy (Italy (mainland))
Albania; Macedonia, the former Yugoslav Republic of
|♦ Number of Locations:||160|
|Range Map:||Click here to open the map viewer and explore range.|