Summary details for Whelk-shell Jumper (Pseudeuophrys obsoleta (Simon, 1868))

Species Details

Species name
Pseudeuophrys obsoleta (Simon, 1868)
Common name
Whelk-shell Jumper
Synonym
Euophrys browningi Millidge & Locket, 1955
Taxonomy
Animalia :: Araneae :: Salticidae
habitat
sandy beach

Distribution

Apparently restricted to shingle beaches in the south-east, the species has been recorded from Blakeney Point, East Norfolk; Orford Beach and Shingle Street, East Suffolk; Colne Point and Walton Naze, North Essex; Bradwell, South Essex; Lydd Ranges and near Faversham, East Kent; and Rye Harbour, East Sussex, all since 1953.

Habitat and ecology

P. obsoleta occurs among tide litter, in empty whelk shells and in the open on shingle. Adults of both sexes are found from April to June and from August to October.

Status

UK Biodiversity Action Plan priority species. The spider is numerous at some sites, for example Bradwell, Colne Point and Shingle Street.

Threats

Public pressure, causing erosion by trampling, may degrade its sites and holiday development may be a threat outside nature reserves. The use of vehicles on shingle, as at Lydd Ranges, causes irreversible disruption to the habitat. Shingle erosion may also be a threat.

Management and conservation

Protection of important shingle sites from exploitation for gravel and excessive damage by vehicles is needed. Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.).

Stats

First recorded
1800
Last recorded
2024
Total records
169
Total visits
166

Conservation status

Pseudeuophrys obsoleta
SourceReporting categoryDesignationDate designatedComments
A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017)Rare and scarce speciesNationally Scarce. Includes Red Listed taxa42979
A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017)Red listing based on 2001 IUCN guidelinesLeast concern42979Threats: Public pressure, causing erosion by trampling, may degrade its sites and holiday development may be a threat outside nature reserves. The use of vehicles on shingle, as at Lydd Ranges, causes irreversible disruption to the habitat. Shingle erosion may also be a threat.
Natural Environment and Rural Communities Act 2006 - Species of Principal Importance in England (section 41)Biodiversity Lists - EnglandEngland NERC S.4139753
UK list of Priority Habitats and SpeciesBiodiversity Action Plan UK list of priority speciesPriority Species39322status on former BAP list- Species Action Plan

Photos and media

Spatial distribution - hectad map

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Rejected records are excluded from this map. Unverified records are included.

Temporal distribution - records by year

Records that span more than one year are not included in this chart.

Temporal distribution - records by week