Summary for Robertus scoticus (Araneae)

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National Distribution

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Identification difficulty rating: 4
Name: Robertus scoticus
Authority: Jackson, 1914
Order: Arachnida: Araneae
Family: Theridiidae
National Rarity status: NR
IUCN status: CR, criteria: B2ab(ii,iv)

Records: 26
First Record: 1913
Latest Record: 2010

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

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About this species

Recorded altitude range
210m to 270m

Species text

R. scoticus has been recorded from the Black Wood of Rannoch and the Old Wood of Meggernie in Perthshire. It is widespread but rare in northern Europe.

Habitat and ecology
This species has been recorded only from Caledonian pine forest where it is found in moss and pine litter in damp areas of the forest. Males have been found between August and October and females between June and October.

This species was only ever recorded from two 10 km squares in Britain and from only one since 1992. It is only known from very small areas.

Caledonian pine forests have been under threat from commercial forestry.

Management and conservation
Both of the sites are SSSIs and are being managed to maintain the open nature of the forest. Regeneration of the forest is suppressed by deer grazing and exclosures have thus been set up.

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)


background methodology

Broad Habitat Data (based on 9 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 2 records with structural habitat information)

Habitat Detail and Method (based on 2 records with habitat detail and method information)

Recorded management for locations with Robertus scoticus

Recorded substrate and hydrology for locations with Robertus scoticus


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