Graduate Thesis Or Dissertation
 

Resource limited competition of two species : a dynamic model of a perturbed neutrally stable system

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/pn89d919q

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  • An hierarchically structured resource flow competition model for two species is developed. The model is shown to be intrinsically neutrally stable with a dynamical behavior derived from perturbation responses. The model properties are contrasted with those of a conventionally interpreted Lotka-Volterra competition model. A simulation developed from the model is compared with the experimental results of Gause's 1932 competition experiment. The simulation reproduces the dynamical behavior of the experimental population and provides additional insight into potential alternative behaviors not obtained from the conventional Lotka-Volterra approach. The resource flow competition model offers an alternative viewpoint in understanding the behavior of competing species. The model development methodology has the advantage that parameters are tied to physical processes at a known hierarchical resolution and the dynamics of the perturbed neutrally stable system offer a rich repertoire of behavior. A model is developed in which the focus is on the extrinsic rather than in intrinsic aspects of system behavior.
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