EEB 2244 Lecture : Types of Trophic Interactions
22 Dec 2018
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Document Summary
Southern pine beetles studies: the effect of suppression tactics on the regional dynamics of the southern pine. Exponential growth: summary: while environmental influences stay constant, populations grow exponentially, this is the general condition for exponential growth. The logistic model: summary: logistic equation is the simplest way to model density-dependent population growth. Such an overshoot sometimes results in a complete collapse (extinction: many populations exhibit complex dynamics, such as population cycles and chaos. 20 s r e b m u n n o i t l a u p o. For a trophic (consumer-resource) interactions, a simple food chain consists of two links: An example of a longer food chain: phytoplankton zooplankton planktivorous fish. Trophic interactions are probably the most important mechanism governing population and community dynamics. Classification of consumer resource: interactions by lethality and intimacy. When a lion attacks a herd of gazelles, he kills and consumes one. Gazelle will be in 10000 herd beauase lowest probability to be killed.
