Summary for Porrhomma oblitum (Araneae)
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About this speciesRecorded altitude range
6m to 200m
The species is widely distributed in England and Wales from Yorkshire southwards, but is generally scattered and absent from the south-west and many other areas of England and Wales. The species is uncommon but fairly widespread in north-western and central Europe.
Habitat and ecology
The species occurs in wet, usually broad-leaved, litter, in damp woodland and fen carr. It may be swept from herbage in woodland and fens. Adults of both sexes have been found from October to early June. We have limited data for adults between January and June.
The spider may be abundant, but is very local and the number of occupied 10 km squares may have declined in the last 30 years.
The species may be threatened by the loss of damp broad-leaved woodland to intensive forestry or drainage.
Management and conservation
Maintain the water table in damp woodland and fen carr. This is one of the few fen species for which the growth of scrub is beneficial.
Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.). References
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