Conservation Evidence strives to be as useful to conservationists as possible. Please take our survey to help the team improve our resource.

Providing evidence to improve practice

Individual study: Small mammals on one-year set-aside

Published source details

Tattersall F.H., Macdonald D.W., Manley W.J., Gates S., Ferber R. & Hart B.J. (1997) Small mammals on one-year set-aside. Acta Theriologica, 47, 329-334


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Provide or retain set-aside areas in farmland Farmland Conservation

A replicated, controlled study of set-aside at four sites on two Royal Agricultural College farms, Gloucestershire, UK (Tattersall et al. 1997) found that small mammals showed no preference for first-year set-aside over crops. Trapping success was significantly lower in set-aside (0.6%) than the adjoining unharvested cereal crop (13%) and hedgerow (30%).  Wood mice were the only species caught in set-aside.  There was no significant difference in trap success between set-aside in blocks (0.6%) or strips (0.6%) or between sown (0.4%) or naturally regenerated (1.0 %) set-aside, although sample sizes were very low (six captures). Following harvest, trap success in the crop decreased (4.5% to 0.5%) and significantly increased in set-aside (0.1 to 2.5%). Set-aside was either sown with a mix of wheat and rape (three sites) or left to regenerate naturally.  A grid of 50 Longworth live-traps was set at each site covering a hedgerow, a 20 m strip of set-aside and a block of either set-aside or cereal crop. Trapping was undertaken for five nights/month from June-August 1995.