Population Dynamics: The 20th Symposium of the British Ecological Society, London, 1978

abundance aestivation aggregation American Naturalist Anderson Animal Ecology aphids arthropods Beddington behaviour biological control Biology birds Blackwell Scientific Publications budworm changes co-existence Collembola communities competition corals curve density-dependent distribution disturbance diversity Dixon ecosystems effect environment environmental equilibrium evolution evolutionary example extinction factors fecundity Figure fish Fisheries function genetic grazing habitat Hassell M.P. herbivores Holling host population hyperparasitoids increase individuals infection inflorescences interactions interspecific competition invertebrates island Journal of Animal K-selection levels London mechanisms meristem modular modules mortality natural selection number of species Obelia observed occur optimal foraging organisms parameters parasite parasite burden parasitoid patch pathogenicity patterns phytophagous plants population density population dynamics population growth predation predator-prey predicted prey produce random relationship response result sampling seeds simulation soil Southwood spatial stable strategies structure studies survival sycamore aphid tion trees trophic levels tropical variability variation vegetation zygote