Summary for Walckenaeria mitrata (Araneae)

previous species | next species

National Distribution

 
Logged-on? click on dot to query records. Please note our
Terms of Use. Double-click on map to go to region

View time series maps for Walckenaeria mitrata
Identification difficulty rating: 4
Name: Walckenaeria mitrata
Authority: (Menge, 1868)
Order: Arachnida: Araneae
Family: Linyphiidae
National Rarity status: NR
IUCN status: VU, criteria: D2

Records: 7
First Record: 1967
Latest Record: 2004

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

Explore Regional Distribution

Please log on and add a note on this species

Missing records?

log-on to access taxon report


 
 
Please report any problems with this record:
VC error
GR error
Taxon ID suspect
Structural habitat suspect
Other problems, please explain here:


 

About this species

Recorded altitude range

Species text

Distribution
This species has been recorded in Britain only from Blean Woods NNR, East Kent, where it was first taken in 1967. In Europe it appears to be widespread but infrequent with records from France, Belgium, Germany, Switzerland, Austria, the Czech Republic, Slovakia, Hungary, Poland, Sweden, Finland and Russia.

Habitat and ecology
The only British sites for W. mitrata are an area of coppiced sweet chestnut and beech woodland that had not been cut for at least 30 years and a second area of coppiced chestnut which had been cut five years earlier. Both sexes were collected in pitfall traps in April 1967 and a further female in November of that year in mixed chestnut and beech litter overlying a raw humus layer on London clay. A further female was collected by hand at the same site in December 1971. Two males and one female were taken in an area of 5 year old coppiced chestnut in May 2004. In Europe it has been collected from a range of different woodland types, often on moderately wet soils.

Status
Fewer than ten specimens have been recorded from two sites in Blean Woods NNR. Three males and two females were taken from litter in an area of over-mature coppice chestnut in 1967, one female in 1971 and two males and a female from litter of a 5-year-old chestnut coppice in 2004.

Threats
There has been a large decline in the area of coppiced chestnut woodland in south-east England over the past 60 years. The British site is in a National Nature Reserve and there are several other protected sites in the Blean Woods complex to the north of Canterbury in which this species might also occur. However with such an apparently small population and restricted occupancy, the species must be prone to the effects of human activities and stochastic events.

Management and conservation
Coppicing of chestnut is maintained at several sites in the Blean woods complex although this may not be essential for the conservation of the species.

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 7 records with adult season information)


Habitats

background methodology

no broad habitat data available

no subhabitat data available

Structural Habitat Data (based on 7 records with structural habitat information)

Habitat Detail and Method (based on 6 records with habitat detail and method information)

Recorded management for locations with Walckenaeria mitrata

Recorded substrate and hydrology for locations with Walckenaeria mitrata

Images

sorry, no pictures available for this species yet - if you have an image please log on and upload it

See also A-Z Species Index - A-Z Picture Index - previous species | next species