Chapter 4. R. Sibly, P. Calow. 1985. Classification of habitats by selection pressures: a synthesis of life-cycle and r/K theory. Pages 75-90. In: R. M. Sibly, R. H. Smith (editors). Behavioural Ecology: Ecological Consequences of Adaptive Behaviour, Symposium No. 25, British Ecological Society, Reading, Blackwell Scientific Publications, Oxford, England, 620 pages.

Keywords: population ecology, mathematical models, Pianka’s prediction, definition of fitness, life-cycle theory and Pianka’s predictions, classification based on these life-cycle parameters, an axis for disturbance? Effects of other variables