题目内容
Density of predators lags behind density of prey.
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Growth rate of predator population is zero when rate of increase of prey is equal to rate of mortality divided by the product of b and c.
Any increase in predator density will result in negative growth in prey population
A surprising prediction of model is that increase in r of prey growth leads to an increase in predator population, not the prey.
Trophic levels are influenced from above by predation and from below by production.
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