Summary for Walckenaeria obtusa (Araneae)

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National Distribution

 
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Identification difficulty rating: 3
Name: Walckenaeria obtusa
Authority: Blackwall, 1836
Order: Arachnida: Araneae
Family: Linyphiidae
National Rarity status: NS
IUCN status: LC

Records: 168
First Record: 1835
Latest Record: 2012

1992-on hectads: 29
Pre-1992 hectads: 61
Total hectads: 86

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About this species

Recorded altitude range
3m to 900m

Species text

Distribution
Widespread in southern Britain but becoming very scattered in the north. A Palaearctic species widespread in north-western and central Europe. It has not been recorded from Ireland.

Habitat and ecology
The spider occurs in moss and grass, usually in broad-leaved woodland. Males probably occur from late autumn through the winter and spring.

Status
Uncommon and evidence suggests significant decline.

Threats
In the past, conversion of ancient woodland to intensive forestry represented a threat. It is also possible that the ending of coppicing in traditionally managed broadleaf woodlands may have affected this species although too little is known of its ecology and micro-habitat requirements to be sure what threats it faces.

Management and conservation
Conversion of broadleaf woodland to conifer plantations should be avoided and traditional coppice rotations maintained where possible. Until more information on its ecological requirements becomes available, precise management recommendations cannot be formulated.

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 29 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 89 records with habitat information)

Broad subhabitat Data (based on 1 records with subhabitat information)

Structural Habitat Data (based on 20 records with structural habitat information)

Habitat Detail and Method (based on 15 records with habitat detail and method information)

Recorded management for locations with Walckenaeria obtusa

Recorded substrate and hydrology for locations with Walckenaeria obtusa

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