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Since their introduction into Britain between 1876 and the 1920’s, grey squirrels have spread rapidly, gradually displacing the native red squirrel through a combination of competition for food and transmission of the squirrel pox virus. Grey squirrels now occur in most of England and Wales, and in central and south-east Scotland.
Grey squirrels are extremely destructive in woodlands, stripping bark from the main stem and branches of trees. Typically beech and sycamore trees are most severely damaged, however serious damage can occur on a wide range of tree species, including oak, birch, larch, pines and Norway spruce. Bark wounds can result in deformation, stain and decay of the timber and serious wounds can kill the tree. Squirrel damage has now become a serious disincentive to landowners trying to establish new woodland.
The overall aims of this research programme include:
Specific objectives included:
Manufacturers and suppliers of equipment for grey squirrel control
Research on contraception for grey squirrel control:
Red Squirrel conservation:
Saving Scotland’s Red Squirrels | Scottish Wildlife Trust
Where to find red squirrels – Red Squirrel Survival Trust (rsst.org.uk)
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