Drystone wallsnear Grassington
Drystone walls are currently being well-maintained through the support provided by agri-environment schemes. The long term maintenance of these walls is important if the moss and lichen flora associated with them is to be maintained. There is, however, some evidence that zinc leaching from the galvanised wire used in wall top wiring is damaging to mosses and lichens that come into contact with it. Where important sites are identified alternatives to wall top wiring should be sought.
Habitat Statement
Conservation objectives
Identify and record the locations of drystone walls of significant ecological value by 2005 (e.g. for mosses and lichens).
Protect the ecological interest of these sites encouraging appropriate maintenance of the wall.
Continue to encourage the restoration of drystone walls.
Conservation measures
Review existing information and carry out survey work to confirm the importance of walls of ecological importance.
Protect these walls from damage and destruction.
Use existing measures such as National Park, ESA and Countryside Stewardship to encourage the restoration and maintenance of drystone walls.
Where walls have been identified as important for their moss and lichen flora investigate alternatives to wall top wiring using zinc galvanised wire.
