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Trachycystis haygarthi 

Scope:Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_onStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Stylommatophora Charopidae

Scientific Name: Trachycystis haygarthi
Species Authority: (Melvill & Ponsonby, 1899)

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Annotations:
Needs updating
Assessor(s): Herbert, D.G.
Reviewer(s): Seddon, M.B. & Herbert, D.G. (Mollusc Red List Authority)
Justification:
Trachycystis haygarthi is known only from two forests, separated by only 35 km. The extent of the two forests are 2,800 hectares and 620 hectares. Total area of occupancy is thus probably less than 3,500 hectares (=35 km²). Although both forests are formally protected areas, the degree of protection afforded by this status is limited, particularly in the case of Nkandla Forest, and a decline in the quality and extent of the habitat is probable

Geographic Range [top]

Range Description: Known only from Nkandla and Entumeni forests inland of Eshowe. The two forests are separated by only 35 km. The extent of the two forests is: Nkandla Forest 2,800 ha and Entumeni Forest 620 ha. Total area of occupancy is thus probably less than 3,500 ha.
Countries occurrence:
Native:
South Africa (KwaZulu-Natal)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Current Population Trend: Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology: Mist-belt Podocarpus and scarp forest.
Systems: Terrestrial

Threats [top]

Major Threat(s): Both forests are formally conserved areas under the control of KZN Wildlife. As such they are afforded a degree of protection, but both are in remote, very rural areas and subject to utilisation by local people and their livestock, particularly Nkandla Forest.

Conservation Actions [top]

Conservation Actions: Although both forests are formally protected areas, the degree of protection afforded by this status is limited, particularly in the case of Nkandla Forest, and a decline in the quality and extent of the habitat is probable.

Classifications [top]

1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability: Suitable  
1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability: Suitable  

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
In-Place Species Management
In-Place Education
2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> 2.3.4. Scale Unknown/Unrecorded
♦ timing: Past, Unlikely to Return    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

Bibliography [top]

Connolly, M. 1939. A Monographic survey of South African non-marine Mollusca. Annals of the South African Museum 33:1-660.

Herbert, D.G. and Kilburn, R.N. in prep. A field guide to the snails and slugs of eastern South Africa

IUCN. 2004. 2004 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 23 November 2004.


Citation: Herbert, D.G. 2004. Trachycystis haygarthi. The IUCN Red List of Threatened Species 2004: e.T44711A10938675. . Downloaded on 26 June 2016.
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