Srensall Common + World's End

MOD + Church Commisioners and Forestry Commision

York

Site Details

Recorders: Terry Crawford, Richard Baker, Yves Bouvet, Callum Macgregor, Penny Relf Walk Time Approx: 1hour 15mins

World’s End, to the West of Strensall Common in York, is a SINC with a mosaic of fen meadow, acidic grassland, heathland and pond habitats. Over the last few years, the area has become increasingly overgrown with birch scrub, and the rich habitat is of concern. So Freshwater Habitats Trust and the Yorkshire Branch of Butterfly Conservation started a program of work days to tackle the problem. For Lepidoptera, the main aim is maintain a mosaic of grassland and short- to medium-height scrubby patches. Thus Marbled White (Melanargia galathea) like coarse grassland, and Gatekeeper caterpillars live on grasses but the adult butterflies like nearby sunny scrub and hedgerows. Strensall Common is the only known English site for the Dark Bordered Beauty (Epione vespertaria), an RDB species that is currently threatened, and World’s End might provide habitat for new colonies.

Sections : The first 2 sections are managed by YWT and grazed and consists of heathland with wet areas of sedge and Fen S3 you are entering an area of dry scrub and recently felled area where scrub has been cleared. S4 crosses into Worlds end and more Dry unimproved grassland with large numbers recorded S5 is a bit more heath passing a large section of mixed conifers and deciduous woodland and S6 is wet and marshy grassland and S7 is mor heathland with scattered trees S8 is heath and some mature woodland while S9 is heath. The main area of grassland has teh largest numbers with some of te specialists ie Smal Copper, BrownArgus Common Blue and Dingy's. along with the best area for Green hairstreak. In contrast the lusher grasses of S6 and shaded woodland you find Large Skipper and Speckled wood. and Ringlets S8 isa favourite for Marbled Whites and Green viened white and ringlets but alos the Skippers. Gatekeeper is found throughout S3-8 . Small Heath is most seen in the heather of S4 and S9

2020 Results

Transect reports 2020

2020 seems to be a better than average year with the highest scores so far over teh 4 years teh transect has been in operation which is encouraging. There are a few loosers In particular Marbled White and Speckled wood common Blue and gatekeeper but this has been seen on other transects which may be down to teh drought in spring 2020. In contrast the winners were Small Skipper , large Whites Peacock and Teh Small tortoiseshell had a boom year.