Summary for Maro lepidus (Araneae)

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National Distribution

 
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Maro lepidus female dorsal view Copyright: Richard Gallon
Identification difficulty rating: 4
Name: Maro lepidus
Authority: Casemir, 1961
Order: Arachnida: Araneae
Family: Linyphiidae
National Rarity status: NR
IUCN status: EN, criteria: B2ab(ii,iv)

Records: 66
First Record: 1946
Latest Record: 2017

1992-on hectads: 5
Pre-1992 hectads: 9
Total hectads: 13

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About this species

Recorded altitude range
45m to 380m

Species text

Distribution
The species has been recorded from Mid-west Yorkshire, Westmorland, Caernarvonshire, Denbighshire, and most recently Cardiganshire, Radnor and Caithness. It is also known from Belgium, Scandinavia, Germany, Switzerland, Austria and the Czech Republic.

Habitat and ecology
The spider has been found among Sphagnum in raised bogs; among wet grass and Juncus by a stream; in a sedge marsh surrounded by Sphagnum; and in rank Molinia grassland. Adults of both sexes have been taken between September and December, and males in April.

Status
Evidence suggests a major decline since the 1970s. Recorded from just three locations since 1992. Major decline of 78% (or 67%) in area of occupancy from 9 hectads prior to 1992 to 3 hectads after that date.

Threats
Commercial peat-cutting has destroyed most of the major peat-mosses in north-west England and degraded the remainder. Rusland Moss is drying out, pine is invading, and there are further drainage proposals along one side of the surviving bog.

Management and conservation
Where sites are adversely affected by drainage, pine invasion needs to be controlled and water levels raised as far as possible.

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 13 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 23 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 8 records with structural habitat information)

Habitat Detail and Method (based on 20 records with habitat detail and method information)

Recorded management for locations with Maro lepidus

Recorded substrate and hydrology for locations with Maro lepidus

Images

Maro lepidus female ventral view
Maro lepidus female ventral view
Maro lepidus female dorsal view
Maro lepidus female dorsal view
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