• Araújo, M.B. & Pearson, R.G. (2005) Equilibrium of species’ distributions with climate. Ecography, 28, 693695.
  • Carcaillet, C. & Muller, S.D. (2005) Holocene tree-limit and distribution of Abies alba in the inner French Alps: anthropogenic or climatic changes? Boreas, 34, 468476.
  • Carter, R.N. & Prince, S.D. (1981) Epidemic models used to explain biogeographical distribution limits. Nature, 293, 644645.
  • Fang, J. & Lechowicz, M.J. (2006) Climatic limits to the present distribution of beech (Fagus L.) species in the world. Journal of Biogeography, 33, 18041819.
  • Hoffmann, M.H. & Welk, E. (1999) A method for the estimation of the global population sizes of plant species – the area–abundance-index. Global Ecology and Biogeography, 8, 3946.
  • Jalas, J. & Suominen, J. (eds) (197294) Atlas Florae Europaeae: distribution of vascular plants in Europe, Vols 1–10. The Committee for Mapping the Flora of Europe and Societas Biologica Fennica Vanamo, Helsinki.
  • Jonsell, B. (ed.) (2000) Flora Nordica 1. Lygopodiaceae to Polygonaceae. The Bergius Foundation, The Royal Swedish Academy of Sciences, Stockholm.
  • Lid, J. & Lid, D.T. (1994) Norsk flora, 6th edn. Det Norske Samlaget, Oslo.
  • Pearson, R.G. & Dawson, T.P. (2003) Predicting the impacts of climate change on the distribution of species: are bioclimate envelope models useful? Global Ecology and Biogeography, 12, 361371.
  • Peterken, G.F. (2001) Ecological effects of introduced tree species in Britain. Forest Ecology and Management, 141, 3142.
  • Reynolds, S.C.P. (2002) A catalogue of alien plants in Ireland. National Botanic Gardens, Glasnevin.
  • Svenning, J.-C. & Skov, F. (2004) Limited filling of the potential range in European tree species. Ecology Letters, 7, 565573.
  • Thuiller, W., Lavorel, S., Araújo, M.B., Sykes, M.T. & Prentice, I.C. (2005) Climate change threats to plant diversity in Europe. Proceedings of the National Academy of Sciences of the United States of America, 102, 82458250.
  • Tinner, W., Hubschmid, P., Wehrli, M., Ammann, B. & Conedera, M. (1999) Long-term forest fire ecology and dynamics in southern Switzerland. Journal of Ecology, 87, 273289.
  • Welk, E. & Bruelheide, H. (2006) There may be bias in R/P ratios (realized vs. potential range) calculated for European tree species – an illustrated comment on SVENNING & SKOV. Journal of Biogeography, 33, 20132018.