Practical Techniques for Surveying and Monitoring Squirrels

Red squirrels (Figure 1) are native to Britain but their future survival is threatened by loss of habitat (Pepper and Patterson, 1998) and by the spread of the grey squirrel, a native of North America introduced into Britain in the 1870s. There is some evidence (Pepper et al., 2001) that, given the right conditions, the native red can compete successfully with the introduced grey. But in managing habitats to create these conditions (Gurnell and Pepper, 1991) it is advisable to monitor squirrel populations to assess how numbers and distribution are responding to changes in habitat and management practices.

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