These can though, particularly in the case of Sycamore and Beech, become invasive. On the Berwickshire coast wooded deans are the equivalent to the hill cleuchs, acting as refugia for ancient woodland and woodland species. Pease Bridge Glen and Tower Deans are amongst the most significant and are owned and managed by the Scottish Wildlife Trust. Scottish Natural Heritage own and manage Cragbank Wood, a 21 hectare site in Roxburghshire, as a National Nature Reserve. Cragbank is predominantly an Ash-Wych Elm mixture with areas of Alder.
Natural regeneration is the main technique for restoration with planting within old felling coupes.
On Sites of Special Scientific Interest, Scottish Natural Heritage are working in partnership with landowners to restore woodland using Management Agreements. At Stanhope, Tweedsmuir, two wooded cleuchs have been fenced against deer and sheep to allow expansion. The commitment shown by landowners in cases such as these is vital to the success of the scheme. Maintaining fresh batteries for electric fencing through the winter is no easy task. Recently two Tweeddale estates have received grants for this type of work.