Trachycystis clifdeni
– Critically Endangered
Taxonomy
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Kingdom:
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ANIMALIA
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Phylum:
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MOLLUSCA
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Class:
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GASTROPODA
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Order:
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STYLOMMATOPHORA
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Family:
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CHAROPIDAE
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Scientific Name:
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Trachycystis clifdeni
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Species Authority:
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Connolly, 1932
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Common Name/s:
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| English | — | DLINZA FOREST PINWHEEL |
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Assessment Information
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Red List Category & Criteria:
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CR B1ab(iii) ver 3.1 (2001)
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Year Assessed:
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2004
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Assessor/s:
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Herbert, D.G.
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Evaluator/s:
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Seddon, M.B. & Herbert, D.G. (Mollusc Red List Authority)
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Justification:
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Trachycystis clifdeni is known only from Dlinza forest which covers an area of approximately 250 hectares. The forest is a formally conserved area under the control of KwaZulu-Natal Wildlife. As such the habitat is afforded a degree of protection. However, since it is a small reserve, it may be negatively impacted by extreme stochastic weather conditions and climate change. Also, its location within an urban environment is of concern.
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Geographic Range
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Range Description:
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Known only from Dlinza Forest in Eshowe. The forest covers an area of ca. 250 ha.
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Countries:
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Native:
South Africa (KwaZulu-Natal)
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Population
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Population Trend:
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Habitat and Ecology
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Habitat and Ecology:
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Coastal scarp forest.
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System:
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Terrestrial
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List of Habitats:
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| 1.5 | Forest - Subtropical/Tropical Dry |
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Threats
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Threats:
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The Dlinza Forest is a formally conserved area under the control of KZN Wildlife. As such the habitat is afforded a degree of protection. However, since it is a small reserve, it may be negatively impacted by extreme stochastic weather conditions and climate change.
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List of Threats:
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| 6.1.1 | Pollution (affecting habitat and/or species) - Atmospheric pollution - Global warming/oceanic warming (future) |
| 7.2 | Natural disasters - Storms/flooding (future) |
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Conservation Actions
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Conservation Actions:
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Although the forest is a formally conserved area, supported by an enthusiastic local community, its location within an urban environment is of concern. Furthermore, its small size means that it is thus likely to suffer more from the impact of stochastic climatic events.
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List of Conservation Actions:
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| 4.4.2 | Habitat and site-based actions - Protected areas - Establishment (in place) |
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Bibliography
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Bibliography:
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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
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