Combined effect of successive competition periods on population dynamics

This study investigates the effect of competition between individuals on population dynamics when they compete for different resources during different seasons or during different growth stages. Individuals are assumed to compete for a single resource during each of these periods according to one of the following competition types: scramble, contest, or an intermediate between the two. The effect of two successive competition periods is determined to be expressed by simple relations on products of two "transition matrices" for various sets of competition types for the two periods. In particular, for the scramble and contest competition combination, results vary widely depending on the order of the two competition types. Furthermore, the stability properties of derived population models as well as the effect of more than two successive competition periods are discussed.

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