Threshfield Long Ashes YWT
Grassington in the National Park
Northern Brown Argus Transect
Recorders: Terry Whitaker et all Distance 1650m Altitude 235m Walk Time: 50mins
This transect was set up in 2004 as a single species transect to monitor the Northern Brown Argus but was discontinued. The route primarily covered limestone grassland with some patches of scrub; however, there was significant bracken cover in some areas. A management plan that includes a bracken control program has been developed by the YDNPA in conjunction with the landowner and was implemented in 2015, with the transect re-established in order to measure the effectiveness of conservation measures.
Results: 2022 awaiting data
Counts were quite a bit down compared to 2019 . equally acroos all species . Ringlet numbers have halved and DGF was rather poor where elsewhere it has been doing better.