Tansley,A.G. 1935: The use and abuse of vegetational concepts and terms. Ecology 16,284—307

Anker, P. 2001: Imperial ecology. Environmental order and the British Empire 1895—1945. Cambridge, MA: Harvard University Press .

Botkin, D.B. 1990: Discordant harmonies: a new ecology for the twenty-first century. Oxford: Oxford University Press .

Cameron, L. 1999: Histories of disturbance . Radical History Review 74, 4—24 .

Cameron, L. and Forrester, J. 2000a: ` A nice type of English scientist': Tansley, Freud and a psychoanalyticdream . History Workshop Journal 48, 65—100 .

— 2000b: Tansley's psychoanalytical network: an episode out of the early history of psychoanalysis in England . Psychoanalysis and History 2, 189—256 .

Clements, F.E. 1963: Plant succession and indicators. New York: Hafner (first published 1928 ).

Colautti, R.I. and MacIsaac, H.J. 2004: A neutral terminology to define `invasive' species . Diversity and Distributions 10, 135—41 .

Cooper, G. 2001: Must there be a balance of nature? Biology and Philosophy 16, 463—79 .

De Luc, J.A. 1806: Letters. In Clements, F.E., Plant succession and indicators, New York: Hafner (1963; first published 1928), 10.

Drury, W.H. 1998: Chance and change: ecology for conservationists. Berkeley, CA: University of California Press .

Fischedicks, K.S. 1995: Practices and pluralism: a socio-historical analysis of early vegetation science, 1900—1950. Amsterdam: KSF .

Lenoir, T. 1997: Instituting science: the cultural production of scientific disciplines. Palo Alto, CA: Stanford University Press .

McCann, K.S. 2000: The diversity-stability debate . Nature 405, 228—33 .

Pahl-Wostl, C. 1995: The dynamic nature of ecosystems: chaos and order entwined . Chichester: Wiley .

Pickett, S.T.A. , Ostfield, R.S. , Shachak, M. and Likens, G.E. , editors 1997: The ecological basis of conservation: heterogeneity, ecosystems and bio-diversity . London: Chapman and Hall.

Pollan, M. 2002: Second nature. London: Bloomsbury .

Shrader-Frechette, K. 2001: Non-indigenous species and ecological explanation . Biology and Philosophy 16, 463—79 .

SimberloFF, D. 2003: Confronting introduced species: a form of xenophobia? Biological Invasions 5, 179—92 .

Sprugel, D.G. 1991: Disturbance, equilibrium and environmental variability. What is natural vegetationinachangingenvironment? Biological Conservation 58, 1—18 .

Tansley, A.G. 1920: The classification of vegetation and concept of development . Journal of Ecology 8, 118—49 .

— 1935: The use and abuse of vegetational concepts and terms . Ecology 16, 284—307 .

— 1923: Practical plant ecology. London: George Allen and Unwin (republished 1946 as Introduction to plant ecology).

— 1929: Succession: the concept and its value . Proceedings of the International Congress of Plant Sciences 1926 , 677—86.

— 1939: Britishecologyduringthepastquarter century: the plant community and the ecosystem . Journal of Ecology 27, 513—30 .

Trudgill, S.T. 2001: Psychobiogeography. Meanings of nature and motivations for a democratized conservation ethic . Journal of Biogeography 28, 677—98 .

Worster, D. 1994: Nature's economy: a history of ecological ideas. Cambridge: Cambridge University Press .