Summary for Zodarion vicinum (Araneae)

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National Distribution

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Identification difficulty rating: 4
Name: Zodarion vicinum
Authority: Denis, 1935
Order: Arachnida: Araneae
Family: Zodariidae
National Rarity status: NR
IUCN status: VU, criteria: D2

Records: 3
First Record: 1987
Latest Record: 2005

1992-on hectads: 1
Pre-1992 hectads: 1
Total hectads: 2

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About this species

Recorded altitude range

Species text

The species was discovered in Britain in 1987 at Shakespeare Cliff at Dover. It is otherwise known only from Italy: on the island of Giglio in the Tuscan archipelago, from Forli (Province Forli) and Aspromonte, Calabria.

Habitat and ecology
The spiders have been taken in pitfall traps set in an old rock fall at the base of the cliff in an area of moderately sloping chalk grassland dominated by Brachypodium pinnatum and Festuca rubra. The spiders have been collected in close proximity to nests of the ant Lasius alienus, many being found in retreats typical of the genus Zodarion. Adults were collected between the end of May and June.

The spider has only been found at the one site in Britain, on two occasions. Two males and one female were originally taken in pitfall traps in 1987 and a further visit in 1991 yielded a further four males and seven females, evidence for a well-established population at the site. Further human disturbance of the site and / or increased vegetation cover are potential threats to the continued existence of the population.

The species was discovered during an extensive invertebrate survey of several sites around Dover and Folkestone as part of a study of the ecological impact of some aspects of the engineering work for the Channel Tunnel. It is not known how the construction of the Channel Tunnel has affected the population of this species. The main threat to the site itself may, in the long term, be sea level rise and increased wave action. Since Zodarion species prefer hot dry habitats, another threat may be revegetation of areas of bare ground.

Management and conservation
Ensure the survival of areas of bare ground where it occurs.

Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.).  References

 Account last edited by Matt Prince at 19:05 on Wed 27th Jul 2022.

Adult Season

Adult Season Data (based on 1 records with adult season information)


background methodology

no broad habitat data available

no subhabitat data available

Structural Habitat Data (based on 1 records with structural habitat information)

Habitat Detail and Method (based on 1 records with habitat detail and method information)

Recorded management for locations with Zodarion vicinum

Recorded substrate and hydrology for locations with Zodarion vicinum


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