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A key-factor analysis is presented using data on Delia coarctata (Fall.) populations collected over 12 years from Stackyard field, Rothamsted. The ana...
Read moreAverage summer sheep population densities in ewe units/ha at 56 sites in Snowdonia in 1957-68 were 4.99-10.65 on herb-rich Agrostis tenuis/Festuca ovi...
Read moreStochastic analogues that included variation in spatial heterogeneity of population densities and of parameter values in Globodera were produced using...
Read moreThere have been suggestions that the population dynamics of weeds may show chaotic dynamics, and that therefore it will not be possible to predict the...
Read moreA population model for the tick Ixodes ricinus, the most significant vector of pathogens in Europe, is used to explore the relative impact of changes ...
Read morePrioritizing conservation of source populations within landscapes is proposed as a strategy for recovering tigers globally. We studied population dyna...
Read moreA 3-year field study designed to monitor the detailed population dynamics of Anisantha sterilis in winter wheat, and to explore the consequences of ch...
Read moreA recent reappraisal of the evidence of the effects of cyclodiene insecticides on sparrowhawks Accipiter nisus and kestrels Falco tinnunculus in Brita...
Read moreThe density of large herbivores is a major driver of forest ecosystem structure and function in conjunction with episodic disturbances, especially in ...
Read moreA study was conducted during 1990-96 to evaluate the reliability of aerial surveys to monitor trends in the breeding population density of ptarmigan L...
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