Swarth Moor SSSI

Ribblesdale

Dales National Park Open Access

Site Details

Recorders: Terry Whitaker, Ian Court , Mik Cardus, Mick Lambert, Steve Ryder, Frank Morgan, David Owen and Kay Andrews Distance 1540m Walk Time: 45mins

Situated adjacent to the Ingleborough National Nature Reserve (NNR), Swarth Moor SSSI comprises an area of raised bog, fen and small areas of carr woodland. This is the key site for Small Pearl-bordered Fritillary in the Yorkshire Dales National Park and is one of the primary reasons for establishing a transect at this site.

Sections:


S1 sometimes has very high counts particularly of ringlets which maybe management dependant and can attract species from other sections

S2 sees the appearance both Dark green and Small Pearl bordered Fritillaries and good counts of Smal lHeath

S3 is damp area and favoured by Green veined white and Orange Tips in particular.

S4 is similar.

S5 favoured by Large Skipper and growing number of SPBF.

S6-7 sees most SPBF

S8-10 sees teh most DGF and Smaal skipper in favoured indicating longer grasses and more wildflowers




Results 2021

Small Skipper is much reduced from 2019 peak as was Large Skipper but this is a trend amongst all sites. Common Blue has reappeared but Green Hairstreak was absent this year.

The vanessids did badly apart from Small Tortoiseshell which did wel here and boomed on many. SPBF is pretty consistant while DGF has greatly increased which is a pattern of the last few years. Small Heath boomed as in many sites while Ringlet faltered. meadow brown was close to average

Results 2019