Reduced pesticide inputs on cereal field margins: the effects on butterfly abundance
Article first published online: 28 JUN 2008
Volume 15, Issue 1, pages 17–24, February 1990
How to Cite
DOVER, J., SOTHERTON, N. and GOBBETT, K. (1990), Reduced pesticide inputs on cereal field margins: the effects on butterfly abundance. Ecological Entomology, 15: 17–24. doi: 10.1111/j.1365-2311.1990.tb00779.x
- Issue published online: 28 JUN 2008
- Article first published online: 28 JUN 2008
- Accepted 28 April 1989
- Key words.;
- conservation headlands
Abstract. 1. On a study farm in Hampshire where large blocks of cereal fields had the pesticide inputs on their headlands experimentally and selectively reduced (the practice known as ‘conservation headlands’), numbers of butterflies were monitored over 4 years by using transect counts.
2. Consistently more butterflies were seen flying over field edges sprayed under the conservation headland regime compared to those that were fully sprayed.
3. A comparison of changes in butterfly abundance on the study farm containing conservation headlands with data from the National Butterfly Monitoring Scheme indicated that population increases in some species may result from the use of conservation headlands.
4. The implications of resource provisioning and the potential reduction of spray drift into field-margin habitats are discussed in relation to farmland butterflies.