Summary for Dipoena prona (Araneae)

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National Distribution

 
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Identification difficulty rating: 4
Name: Dipoena prona
Authority: (Menge, 1868)
Order: Arachnida: Araneae
Family: Theridiidae
National Rarity status: NR
IUCN status: EN, criteria: B2ab(ii)

Records: 52
First Record: 1900
Latest Record: 2004

1992-on hectads: 4
Pre-1992 hectads: 18
Total hectads: 21

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About this species

Recorded altitude range
2m to 160m

Species text

Distribution
D. prona is restricted to southern England and East Anglia apart from one record from Cardiganshire. It is widespread but rare in Europe.

Habitat and ecology
The species has been recorded from dry heathlands and calcareous grasslands, which are often near to the coast. It has been found under stones. Like other Dipoena spp. it may feed on ants. Adults of both sexes occur between May and July, females until August.

Status
Recorded from just two hectads since 1992, showing a decline of almost 90% in hectads with spider records both before and after that date. Although most records are from heathland in Dorset and Surrey, where intensive recording has not taken place in recent years, the decline is considered sufficient to justify its accorded status.

Threats
The coastal sites are not under threat at present but the heathland and grassland sites may be under threat from agriculture, forestry or housing developments.

Management and conservation
No management is recommended as most of the sites are stony and on thinly vegetated soils.

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

Adult Season

Adult Season Data (based on 9 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 11 records with habitat information)

no subhabitat data available

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

Habitat Detail and Method (based on 4 records with habitat detail and method information)

Recorded management for locations with Dipoena prona

Recorded substrate and hydrology for locations with Dipoena prona

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