Belgrandiella angelovi 

Scope: Global, Europe & Mediterranean
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Littorinimorpha Hydrobiidae

Scientific Name: Belgrandiella angelovi L. Pinter, 1968

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2010
Date Assessed: 2009-11-19
Assessor(s): Georgiev, D.
Reviewer(s): Van Damme, D., Fehér, Z., Abdul Malak, D. & Seddon, M.B.
Belgrandiella angelovi is only known from the type locality: a spring on Shipka pass in Stara Planina Mts. However, there are two or three small springs on this pass near a small village. Several of the springs are modified by concreting for catchment of water and the threats are disturbance to these sites from tourism and development.

This species has been assessed as Vulnerable D2, as there may be other springs in the area that contain the species and there are little recent data on the distribution of this species or on its population size. A Critically Endangered assessment cannot be supported until more data are available on level of threats to the species. However should this data become available then the species could be reassessed as Critically Endangered B2ab(iii) using the precautionary principle.

Geographic Range [top]

Range Description:Belgrandiella angelovi is endemic to Bulgaria, where it is known only from the type locality: a spring in Stara Planina Mts on the Shipka pass, although the exact position of the type locality is not known. However, there are two or three small springs on this pass near a small village and several of the springs have been modified by concreting to allow the offtake of water for the villages. It is possible that this species may have a wider distribution as many of the local springs have not been surveyed.
Countries occurrence:
Additional data:
Estimated area of occupancy (AOO) - km2:4
Extreme fluctuations in area of occupancy (AOO):No
Continuing decline in extent of occurrence (EOO):Unknown
Number of Locations:1
Lower elevation limit (metres):1200
Upper elevation limit (metres):1200
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:When originally collecting in the 1960s, Pinter found this species to be abundant. However there are no recent data on the status of this species.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:Unknown

Habitat and Ecology [top]

Habitat and Ecology:It is considered a freshwater, cold spring species.
Continuing decline in area, extent and/or quality of habitat:Unknown

Use and Trade [top]

Use and Trade: Not traded.

Threats [top]

Major Threat(s): This area at the top of the pass has several small springs, which are vulnerable to change, from water use for the village, and by visitors and tourism development. There is a possible risk in the future of fluctuations in populations as the result of changes in water level. The species possibly occurs in other areas in the regions that are hardly accessible, which are less threatened by human impacts.

Conservation Actions [top]

Conservation Actions: There are no conservation actions in place specific to the species. Surveys are needed to determine range and population levels, and the threats to other sites if located.

Classifications [top]

5. Wetlands (inland) -> 5.9. Wetlands (inland) - Freshwater Springs and Oases
suitability:Suitable  major importance:Yes

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
In-Place Species Management
In-Place Education
11. Climate change & severe weather -> 11.2. Droughts
♦ timing:Future ♦ scope:Majority (50-90%) ♦ severity:Causing/Could cause fluctuations ⇒ Impact score:Low Impact: 4 
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
  • 2. Species Stresses -> 2.2. Species disturbance

7. Natural system modifications -> 7.2. Dams & water management/use -> 7.2.1. Abstraction of surface water (domestic use)
♦ timing:Ongoing ♦ scope:Unknown ♦ severity:Unknown ⇒ Impact score:Unknown 
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

7. Natural system modifications -> 7.3. Other ecosystem modifications
♦ timing:Ongoing ♦ scope:Unknown ♦ severity:Unknown ⇒ Impact score:Unknown 
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.2. Population size, distribution & trends
3. Monitoring -> 3.4. Habitat trends

Bibliography [top]

IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.4). Available at: (Accessed: 27 October 2010).

Citation: Georgiev, D. 2010. Belgrandiella angelovi. The IUCN Red List of Threatened Species 2010: e.T155599A4806577. . Downloaded on 14 August 2018.
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