Fig 1.
In order to meet the criterion for a robust corner, the corner must be locked tight by a wooden bar and hard-strung wire, made with poles of a minimum 15 cm diameter with their ends buried at a frost free depth, and with the top live wire running above the wooden bar.
Fig 2.
The fence “ends”, for instance by a gate, must be locked tight by a wooden bar and hard-strung wire, and built with robust posts of a minimum 15 cm diameter, in order to allow the live wires high tension.
Fig 3.
Where the terrain is variable, such as when the fence runs across higher features and is forced to bend, poles must be placed in a suitable manner following the feature so that the lowest wire is never more than 30 cm above ground.
Fig 4.
Where the fence crosses a ditch or other features in the terrain which are acute enough to create a gap under the fence, a robust post should be placed at the lowest point onto which wires or a net should be attached to prevent carnivores from entering.
Fig 5.
Fences meeting criteria versus age of fence.
The number of fences that did, or did not, meet the criteria for subsidies in relation to the time since construction.
Fig 6.
Construction or maintenance failures.
Out of the surveyed fences (n = 100) that had originally been approved as carnivore deterring fences, n = 14 (i.e., 14%) still fulfilled the criteria, and n = 86 (i.e., 86%) failed to fulfil one or several criteria.