• Bennington, C.C. & Thayne, W.V. 1994. Use and misuse of mixed model analysis of variance in ecological studies. Ecology 75: 717722.
  • Bloom, A.J., Chapin, F.S. III & Mooney, H.A. 1985. Resource limitation in plants – an economic analogy. Annu. Rev. Ecol. Syst. 16: 363392.
  • Cheplick, G.P. 1997. Response to severe competitive stress in a clonal plant: differences between genotypes. Oikos 79: 581591.
  • Cook, R.E. 1978. A sexual reproduction: a further consideration. Am. Naturalist 113: 769772.
  • Eriksson, O. 1986. Survivorship, reproduction and dynamics of Potentilla anserina on a Baltic seashore meadow. Vegetatio 67: 1725.
  • Eriksson, O. 1988. Ramet behaviour and population growth in the clonal herb Potentilla anserina. J. Ecol. 76: 522536.
  • Eriksson, O. & Jerling, L. 1990. Hierarchical selection and risk spreading in clonal plants. In: Clonal Growth in Plants: Regulation and Function (eds J.Van Groenendael & H.deKroon), pp. 7994. SPB. Academic Publishing, The Hague.
  • Fahrig, L., Coffin, D.P., Lauenroth, W.K. & Shugart, H.H. 1994. The advantage of long-distance clonal spreading in highly disturbed habitats. Evol. Ecol. 8: 172187.
  • Futuyma, D.J. 1997. Evolutionary Biology. Sinauer, New York.
  • Huber, H. & Stuefer, J.F. 1997. Shade-induced changes in the branching pattern of a stoloniferous herb: functional response or allometric effect? Oecologia 110: 478486.DOI: 10.1007/s004420050183
  • Johansson, M.E. 1993. Factors controlling the population dynamics of the clonal helophyte Ranunculus lingua. J.Vegetation Sci. 4: 621632.
  • Johansson, M.E. 1994. Life history differences between central and marginal populations of the clonal aquatic plant Ranunculus lingua: a reciprocal transplant experiment. Oikos 70: 6572.
  • McNaughton, S.J. 1975. r- and K-selection in Typha. Am.Naturalist 109: 251261.
  • McLellan, A.J., Prati, D., Kaltz, O. & Schmid, B. 1997. Structure and analysis of phenotypic and genetic variation in clonal plants. In: The Ecology and Evolution of Clonal Growth in Plants (eds H.De Kroon & J.Van Groenendael), pp. 185210. SPB Academic Publishing, The Hague.
  • Stearns, S.C. 1989. Trade-offs in life-history evolution. Func. Ecol. 3: 259268.
  • Stearns, S.C. 1992. The Evolution of Life Histories. Oxford University Press, Oxford.
  • Stuefer, J.F. 1997. Division of Labour in Clonal Plants? On the Response of Stoloniferous Herbs on Environmental Heteroge-neity. PhD Dissertation. Utrecht University, Utrecht, The Netherlands.
  • Stuefer, J.F. & Huber, H. 1998. Differential effects of light quantity and spectral light quality on growth, morphology and development in two stoloniferous Potentilla species. Oecologia 117: 18.DOI: 10.1007/s004420050624