Hedges and green lanes: vegetation composition and structure
In this paper the vegetation of 20 green lanes, defined as tracks bounded by hedgerows, is examined in terms of composition and structure and compared with that of 20 matched single hedgerows. For analysis the vegetation of the lanes was separated into three areas; central track, verges inside of hedgerows and verges outside of hedgerows. The vegetation of these areas was found to differ in species richness, community structure, plant strategies and environmental traits. When compared with verges of the matched single hedgerows, the inside verges and central track were greatly different whereas the outside verge appeared broadly similar. Green lanes contained significantly more plant species than matched single hedgerows, differences being most pronounced when compared as landscape units, rather than as a mean of the constituent parts. The potential effect of surrounding land use on green lane floral diversity is discussed as well as the importance of maintaining the structural diversity of green lanes for farmland biodiversity.
Key wordsFarmland Field margins Flora Green lane Hedgerow Hedge Vegetation Verges
Unable to display preview. Download preview PDF.
- Barr C.J., Britt C.P. and Sparks T.H. 1995. Hedgerow Management and Wildlife: A Review of Research on the Effects of Hedgerow Management and Adjacent Land on Biodiversity. ITE/ADAS.Google Scholar
- Barr C.J., Bunce R.G.H., Clarke R.T., Fuller R.M., Furse M.T., Gillespie M.K., Groom G.B., Hallam C.J., Hornung M., Howard D.C. and Ness M.J. 1993. Countryside Survey 1990. Department of the Environment, Main Report.Google Scholar
- Carey P.D., Barnett C.L., Greenslade P.D., Hulmes S., Garbutt R.A., Warman E.A., Myhill D., Scott R.J., Smart S.M., Manchester H.J., Robinson J., Walker K.J., Howard D.C. and Firbank L.G. 2002. A comparison of the ecological quality of land between an English agri-environment scheme and the countryside as a whole. Biological Conservation 108: 183–197.CrossRefGoogle Scholar
- Dover J.W. and Sparks T.H. 2001. Green lanes: biodiversity reservoirs in farmland?. In: Barr C.J. and Petit S. (eds), Hedgerows of the World: Their Ecological Functions in different landscapes. IALE (UK), Lymm, pp. 241–250.Google Scholar
- Grime J.P., Hodgson J.G. and Hunt R. 1988. Comparative Plant Ecology: A Functional Approach to Common British Species. Unwin Hyman, London.Google Scholar
- Haines-Young R.H., Barr C.J., Black H.I.J., Briggs D.J., Bunce R.G.H., Clarke R.T., Cooper A., Dawson F.H., Firbank L.G., Fuller R.M., Furse M.T., Gillespie M.K., Hill R., Hornung M., Howard D.C., McCann T., Morecroft M.D., Petit S., Sier A.R.J., Smart S.M., Smith G.M., Stott A.P., Stuart R.C. and Watkins J.W. 2000. Accounting for Nature: Assessing Habitats in the UK Countryside. DETR, London.Google Scholar
- Hill M.O., Mountford J.O., Roy D.B. and Bunce R.G.H. 1999. Ellenberg’s Indicator Values for British Plants. HMSO, Norwich.Google Scholar
- Siegel S. and Castellan N.J. 1988. Non-parametric Statistics for the Behavioural Sciences. McGraw-Hill, New York.Google Scholar
- Stoate C. 1996. The changing face of lowland farming and wildlife Part 2 1945–1995. British Wildlife 7: 162–172.Google Scholar