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NORFOLK BIODIVERSITY ACTION PLAN SPECIES DATA AUDIT ...

NORFOLK BIODIVERSITY ACTION PLAN SPECIES DATA AUDIT ...

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SPIDERS<br />

Spp.<br />

Considered<br />

Extinct<br />

Species Present<br />

or<br />

absent<br />

in<br />

Golden Lantern-spider<br />

Agroeca cuprea<br />

Yellow-striped Bear Spider<br />

Arctosa fulvolineata<br />

Small Mesh-weaver<br />

Dictyna pusilla<br />

Silky Gallows-spider<br />

Dipoena inornata<br />

Fen Raft Spider<br />

Dolomedes plantarius<br />

Swamp Lookout Spider<br />

Notioscopus sarcinatus<br />

Sand Running-spider<br />

Philodromus fallax<br />

Whelk-shell Jumper<br />

Pseudeuophrys obsoleta<br />

Norfolk<br />

Spp. New<br />

to<br />

National<br />

BAP List<br />

No. of<br />

records in<br />

database<br />

No. of 1km<br />

squares<br />

recorded<br />

since 1980<br />

Possible other<br />

sources<br />

of data sets<br />

P? 3 - British Arachnological<br />

Society<br />

P? 1<br />

- British Arachnological<br />

Society<br />

P 3 1 British Arachnological<br />

Society<br />

P? 1 - British Arachnological<br />

Society<br />

61<br />

Other survey<br />

work<br />

completed or<br />

in progress<br />

Comments<br />

Last Norfolk record in 1970 at Grimes Graves. May be underrecorded.<br />

Associated with grassland habitats and restricted to Breckland.<br />

Marked decline in UK – Habitat loss.<br />

New to national list of BAP priority species 2007<br />

Last Norfolk record in 1959. May be under recorded.<br />

A halophilic spider associated with saltmarsh habitat.<br />

Declining – Habitat loss<br />

New to national list of BAP priority species 2007<br />

Generally associated with boggy habitats.<br />

Marked decline in UK – Reason unclear, although may be due<br />

to loss of habitats.<br />

New to national list of BAP priority species 2007<br />

Last Norfolk record in 1959. May be under recorded.<br />

Associated with heathland and coastal grassland.<br />

Marked decline in UK – Habitat loss<br />

New to national list of BAP priority species 2007<br />

P 6 2 UEA, Natural England Current Species Action Plan<br />

Found at only two sites in Norfolk, at Redgrave and Lopham Fen<br />

(Smith 2006)<br />

Associated with wet fens<br />

Declining - Water abstraction, inappropriate ditch management,<br />

deterioration in water quality and loss of suitable wetland<br />

habitat.<br />

P? 3 - British Arachnological<br />

Society<br />

P 5 3 British Arachnological<br />

Society<br />

P? 1 - British Arachnological<br />

Society<br />

Last Norfolk record in 1974. May be under recorded.<br />

Associated with fenland environments.<br />

Marked decline in UK – Habitat loss<br />

New to national list of BAP priority species 2007<br />

Associated with coastal sand dunes.<br />

Marked decline in UK – Habitat loss<br />

New to national list of BAP priority species 2007<br />

Last Norfolk record in 1953. May be under recorded.<br />

Associated with coastal vegetated shingle. Current Species<br />

Action Plan.<br />

Declining – Reasons unclear

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