Summary for Walckenaeria dysderoides (Araneae)

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National Distribution

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View time series maps for Walckenaeria dysderoides
Identification difficulty rating: 3
Name: Walckenaeria dysderoides
Authority: (Wider, 1834)
Order: Arachnida: Araneae
Family: Linyphiidae
National Rarity status: NS
IUCN status: LC
Watching Brief: Amber

Records: 469
First Record: 1900
Latest Record: 2020

1992-on hectads: 73
Pre-1992 hectads: 120
Total hectads: 172

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About this species

Recorded altitude range
0m to 518m

Species text

The species is widespread in England but with few scattered records in Wales and Scotland. It is widespread in north-western and central Europe.

Habitat and ecology
The spider is found on southern heathlands, especially in open, stony areas, but has also been recorded in pine needles and moss in woodlands, and on both acidic and calcareous grassland. Adults have been recorded throughout the year with most males between May and July.

Although widely distributed in the southern half of Britain, it is generally uncommon. The species has apparently shown a long-term decline, with a reduction of 50% in the number of 10 km squares occupied over the past 30 years.

Loss of heathland and calcareous grassland to agriculture and urban development are potential causes of decline. However, given the range of habitats it occurs in, it is difficult to understand the reasons for this speciesí decline in recent years.

Management and conservation
Protect remaining heathland and calcareous grassland sites from loss due to agriculture, forestry and urban development. Further research is required into the ecology of this species before precise management recommendations can be made.

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 98 records with adult season information)


background methodology

Broad Habitat Data (based on 198 records with habitat information)

Broad subhabitat Data (based on 5 records with subhabitat information)

Structural Habitat Data (based on 81 records with structural habitat information)

Habitat Detail and Method (based on 86 records with habitat detail and method information)

Recorded management for locations with Walckenaeria dysderoides

Recorded substrate and hydrology for locations with Walckenaeria dysderoides


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