Summary for Walckenaeria kochi (Araneae)

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National Distribution

 
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Identification difficulty rating: 3
Name: Walckenaeria kochi
Authority: (O.P.-Cambridge, 1872)
Order: Arachnida: Araneae
Family: Linyphiidae
National Rarity status: NS
IUCN status: LC
Watching Brief: Amber

Records: 447
First Record: 1900
Latest Record: 2017

1992-on hectads: 76
Pre-1992 hectads: 97
Total hectads: 160

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About this species

Recorded altitude range
0m to 660m

Species text

Distribution
W. kochi is absent from large parts of the country and appears to be widespread only in parts of Scotland, Wales, Cheshire, Yorkshire and the coast of East Anglia and Essex. A Palaearctic species widespread in north-western and central Europe.

Habitat and ecology
The spider occurs at the roots of vegetation, generally in moorland, marshes and bogs, or on river banks and wet areas on the coast including saltmarsh and brackish grassland. Adults of both sexes have been recorded from spring to early summer and in September.

Status
A local species which has apparently suffered major decline in recent years. However, there is a significant concentration of records in Yorkshire which is known to have been very under-recorded recently.

Threats
Some of the decline in the past 20 years may have resulted from the drainage or drying out of wetlands but this is unlikely to be the only cause.

Management and conservation
Ensure that wetlands are not drained or allowed to dry out. Further information on the ecology of the species is required in order to make firm management recommendations.

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 142 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 211 records with habitat information)

Broad subhabitat Data (based on 8 records with subhabitat information)

Structural Habitat Data (based on 100 records with structural habitat information)

Habitat Detail and Method (based on 137 records with habitat detail and method information)

Recorded management for locations with Walckenaeria kochi

Recorded substrate and hydrology for locations with Walckenaeria kochi

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