DOWNLOAD THE GREY SQUIRREL REVIEW

Download in full (2.5 MB)

FOREWORD & INTRODUCTION (375 KB)

1. SQUIRREL ECOLOGY (157 KB)

• Grey squirrel (Sciurus carolinensis) ecology
• Energy requirements
• Red squirrel (Sciurus vulgaris L) ecology
• Genetic variation
• Behaviour
• Forest Design Plans

2. SQUIRREL POPULATION TRENDS (395 KB)

• Italy
• Ireland
• Britain
• Densities
• Spread of grey squirrel

3. FATE OF THE RED SQUIRREL (182 KB)

• Ecological competition and replacement
• Competitive exclusion
• Woodland fragmentation
• Co-habitation?
• Disease

4. ENVIRONMENTAL & ECONOMIC DAMAGE BY THE ALIEN GREY SQUIRREL (1.15 MB)

• Tree damage
• Squirrel damage to young trees
• Measuring damage scales
• The effect of squirrel damage on timber value
• Other effects of squirrel damage

5. CONTROL METHODS (190 KB)

• Predicting damage
• Bark-stripping and woodland design
• Damage control
• The effectiveness of squirrel control
• Costs of bark-stripping and squirrel control
• Density of hoppers

6. QUANTIFICATION AND FINANCIAL IMPLICATIONS OF GREY SQUIRREL DAMAGE (263 KB)

• Data on the extent of damage
• Estimates of the costs of grey squirrel damage
• Bark-stripping
• Value of crops at risk
• Estimates of the costs of grey squirrel control
• Individual examples
• Forestry Commission statistics
• The National Forest