Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-23T09:43:37.707Z Has data issue: false hasContentIssue false

Potential climatic control of seedbank density

Published online by Cambridge University Press:  22 February 2007

Robin J. Pakeman*
Affiliation:
Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK
Roger P. Cummins
Affiliation:
Institute of Terrestrial Ecology, Banchory Research Station, Hill of Brathens, Glassel, Banchory, Kincardineshire, AB31 4BY, UK
Gordon R. Miller
Affiliation:
Gilbank, Banchory, Kincardineshire, B31 5TQ, UK
David B. Roy
Affiliation:
Institute of Terrestrial Ecology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire, PE17 2LS, UK
*
*Correspondence Fax: 01224 311556 Email: [email protected]

Abstract

The relationship between Calluna vulgaris seedbank density and climate was investigated using regression analysis and two related techniques (factor-ceiling analysis). The seedbank data originated from published and unpublished studies. Low seedbank densities were associated with sites in the relatively dry, sunny and warm south and east of Great Britain. However, as the climatic variables used in the study were highly intercorrelated, it was not possible to determine which climatic variable had the greatest influence on seedbank density. A hypothesis is described suggesting that the limits of seedbank density can be described for single environmental factors. The operation of other environmental and management factors may reduce the seedbank density to less than this maximum. This is illustrated for a range of climatic variables using factor-ceiling analysis. The processes following seed deposition and the longevity of seeds in the soil are highlighted as possible factors controlled by climate which determine seedbank density.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ball, D.F., Radford, G.L. and Williams, W.M. (1983) A land characteristic data bank for Great Britain. Bangor Occasional Papers 13. Bangor, Institute of Terrestrial Ecology.Google Scholar
Barclay-Estrup, P. and Gimingham, C.H. (1994) Seed shedding in a Scottish heath community. Journal of Vegetation Science 5, 197204.Google Scholar
Bekker, R.M., Oomes, M.J.M. and Bakker, J.P. (1998) The impact of groundwater level on soil seed bank survival. Seed Science Research 8, 399404.Google Scholar
Blackburn, T.M., Lawton, J.H. and Perry, J.N. (1992) A method of estimating the slope of upper bounds of plots of body size and abundance in natural animal assemblages. Oikos 65, 107112.CrossRefGoogle Scholar
Chippindale, H.G. and Milton, W.E.J. (1934) On the viable seeds present beneath pastures. Journal of Ecology 22, 508531.CrossRefGoogle Scholar
Gimingham, C.H. (1972) Ecology of Heathlands. London, Chapman & Hall.Google Scholar
Gränstrom, A. (1988) Seed banks at six open and afforested heathland sites in southern Sweden. Journal of Applied Ecology 25, 297306.CrossRefGoogle Scholar
Gross, K.L. (1990) A comparison of methods for estimating seed numbers in the soil. Journal of Ecology 78, 10791093.Google Scholar
Grubb, P.J. (1977) The maintenance of species richness in plant communities: the importance of the regeneration niche. Biological Reviews 52, 107145.CrossRefGoogle Scholar
Haugh, M.N. (1990) Agrometeorological aspects of crops in the United Kingdom and Ireland. A Review for Sugar Beet, Oilseed Rape, Peas, Wheat, Barley, Oats, Potatoes, Apples and Pears. Joint Research Centre, Commission of the European Communities.Google Scholar
Hester, A.J. (1988) Vegetation succession under developing birch woods. PhD Thesis, University of Aberdeen.Google Scholar
Hester, A.J., Gimingham, C.H. and Miles, J. (1991) Succession from heather moorland to birch woodland. III. Seed availability, germination and early growth. Journal of Ecology 79, 329344.CrossRefGoogle Scholar
Kaiser, M.S., Speckman, P.L. and Jones, J.R. (1994) Statistical models for limiting nutrient relations in inland waters. Journal of the American Statistical Association 89, 410423.CrossRefGoogle Scholar
Kirkham, F.W. and Kent, M. (1997) Soil seed bank composition in relation to above-ground vegetation in fertilized and unfertilized hay meadows on a Somerset peat moor. Journal of Applied Ecology 34, 889902.CrossRefGoogle Scholar
Kitajima, K. and Tilman, D. (1996) Seed banks and seedling establishment on an experimental productivity gradient. Oikos 76, 381391.CrossRefGoogle Scholar
Legg, C.J., Maltby, E. and Proctor, M.C.F. (1992) The ecology of severe moorland fire on the North York Moors: seed distribution and seedling establishment of Calluna vulgaris. Journal of Ecology 80, 737752.CrossRefGoogle Scholar
Macdonald, A.J., Kirkpatrick, A.H., Hester, A.J. and Sydes, C. (1995) Regeneration by natural layering of heather (Calluna vulgaris L. Hull): frequency and characteristics in upland Britain. Journal of Applied Ecology 32, 8599.CrossRefGoogle Scholar
Maller, R.A., de Boer, E.S., Joll, L.M., Anderson, D.A. and Hinde, J.P. (1983) Determination of the maximum foregut volume of western rock lobsters (Panulirus cygnus) from field data. Biometrics 39, 543551.CrossRefGoogle Scholar
Mallik, A.U., Hobbs, R.J. and Legg, C.J. (1984) Seed dynamics in Calluna-Arctostaphylos heath in north eastern Scotland. Journal of Ecology 72, 855871.CrossRefGoogle Scholar
Marrs, R.H. (1993) An assessment of change in Calluna heathlands in Breckland, Eastern England, between 1983 and 1991. Biological Conservation 65, 133139.Google Scholar
Miles, J. (1973) The natural recolonization of experimentally bared soil in Callunetum in north east Scotland. Journal of Ecology 61, 399412.Google Scholar
Miller, G.R. and Cummins, R.P. (1987) The role of buried viable seeds in the recolonization of disturbed ground by heather (Calluna vulgaris (L.) Hull) in the Cairngorm Mountains, Scotland, UK. Arctic and Alpine Research 19, 396401.CrossRefGoogle Scholar
Mitchell, R.J., Marrs, R.H. and Auld, M.H.D. (1998) A comparative study of the seedbanks of heathland and successional habitats in Dorset, Southern England. Journal of Ecology 86, 588596.CrossRefGoogle Scholar
Monteith, J.L. (1977) Climate and the efficiency of crop production in Britain. Philosophical Transactions of the Royal Society of London B. 281, 277294.Google Scholar
Nolan, A.J., Gilleck, T.H. and Sellers, J.E. (1998) The status of heather (Calluna vulgaris) on the Ronas Hill-North Roe SSSI, Shetland. Report to Scottish Natural Heritage. Aberdeen, MRCS.Google Scholar
Nolan, A.J., Hulme, P.D. and Wheeler, D. (1994) The status of Calluna vulgaris (L.) Hull on Fair Isle. Botanical Journal of Scotland 47, 116.CrossRefGoogle Scholar
Pakeman, R.J. and Hay, E. (1996) Heathland seedbanks under bracken Pteridium aquilinum (L.) Kuhn and their importance for re-vegetation after bracken control. Journal of Environmental Management 47, 329339.CrossRefGoogle Scholar
Pakeman, R.J. and Marshall, A.G. (1997) The seedbanks of the Breckland heaths and heath grasslands, eastern England, and their relationship to the vegetation and the effects of management. Journal of Biogeography 24, 375390.CrossRefGoogle Scholar
Pigott, C.D. and Huntley, J.P. (1981) Factors controlling the distribution of Tilia cordata at the northern limit of its geographical range. New Phytologist 87, 817839.CrossRefGoogle Scholar
Putwain, P.D. and Gillham, D.A. (1990) The significance of the dormant viable seed bank in the restoration of heathlands. Biological Conservation 51, 116.CrossRefGoogle Scholar
Putwain, P.D. and Rae, P.A.A. (1988) Heathland Restoration: A Handbook of Techniques. Southampton, Environmental Advisory Unit, Liverpool University & British Gas.Google Scholar
Pywell, R.F. (1993) The restoration of heathland on farmland in southern Britain. PhD Thesis, University of Liverpool.Google Scholar
Pywell, R.F., Putwain, P.D. and Webb, N.R. (1997a) The decline of heathland seed populations following the conversion to agriculture. Journal of Applied Ecology 34, 949960.Google Scholar
Pywell, R., Pakeman, R., Walker, K., Manchester, S. and Barratt, D. (1997b) Habitat Recreation Study: The Stiperstones. Report for English Nature. Huntingdon, Institute of Terrestrial Ecology.Google Scholar
Pywell, R.F., Webb, N.R. and Putwain, P.D. (1995) A comparison of techniques for restoring heathland on abandoned farmland. Journal of Applied Ecology 32, 397409.Google Scholar
Scandrett, E. and Gimingham, C.H. (1989) Vegetative regeneration by layering in Calluna vulgaris (L.) Hull. Transactions of the Botanical Society of Edinburgh 45, 323334.Google Scholar
Scharf, F.S., Juanes, F. and Sutherland, M. (1998) Inferring ecological relationships from the edges of scatter diagrams: comparison of regression techniques. Ecology 79, 448460.CrossRefGoogle Scholar
Thompson, K. and Band, S.R. (1997) Survival of a lowland heathland seed bank after a 33-year burial. Seed Science Research 7, 409411.CrossRefGoogle Scholar
Thompson, K., Bakker, J.P. and Bekker, R.M. (1997) The Soil Seed Banks of North West Europe: Methodology, Density and Longevity. Cambridge, Cambridge University Press.Google Scholar
Thompson, N., Barrie, I.A. and Ayles, M. (1981) The Meteorological Office Rainfall and Evaporation Calculation System: MORECS. Hydrological Memorandum No. 45, Meteorological Office. London, HMSO.Google Scholar
Thomson, D., Weiblen, G., Thomson, B.A., Alfaro, S. and Legendre, P. (1996) Untangling multiple factors in spatial distributions: lilies, gophers, and rocks. Ecology 77, 16981715.Google Scholar
Viner, A. and Hulme, M. (1994) The Climate Impacts LINK Project: Providing Climate Change Scenarios for Impact Assessment in the UK. Norwich, Climate Research Unit.Google Scholar
Warr, S.J., Thompson, K. and Kent, M. (1993) Seed banks as a neglected area of biogeographic research: a review of literature and sampling techniques. Progress in Physical Geography 17, 329347.CrossRefGoogle Scholar
Webb, N.R. and Pywell, R.F. (1992) Heathland restoration: the potential of old fields. pp. 4860in Free, T..; Kitson, M.T. (Eds) Heathland Habitat Creation. Sizewell, Nuclear Electric.Google Scholar
Woodward, F.I. (1997) Life at the edge: a 14-year study of a Verbena officinalis population's interactions with climate. Journal of Ecology 85, 899–806.CrossRefGoogle Scholar
Zar, J.H. (1984) Biostatistical Analysis. (2nd edition) London, Prentice-Hall.Google Scholar