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Ecosystem model
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An ecosystem model is an abstract, usually mathematical, representation of an ecological system, which is studied to better understand the real system.
Diagram of the Silver Springs model (Odum, 1971). Note the aggregation into functional groups such as "herbivores" or "decomposers".
Diagram of the Silver Springs model (Odum, 1971). Note the aggregation into functional groups such as "herbivores" or "decomposers".
Theoretical ecology
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Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations,
Ecosystem model
…are much closer to the ratio dependent extreme, so if a simple model is needed one can use the Arditi-Ginzburg model as the first approximation. The theoretical ecologist Robert Ulanowicz has used information theory tools to describe the structure of ecosystems, emphasizing mutual information (correlations) in studied…
Lotka–Volterra model of cheetah–baboon interactions. Starting with 80 baboons (green) and 40 cheetahs, this graph shows how the model predicts the two
Lotka–Volterra model of cheetah–baboon interactions. Starting with 80 baboons (green) and 40 cheetahs, this graph shows how the model predicts the two species numbers will progress over time.
Flocks of birds can abruptly change their direction in unison, and then, just as suddenly, make a unanimous group decision to land.
Flocks of birds can abruptly change their direction in unison, and then, just as suddenly, make a unanimous group decision to land.