Advances and Applications in Statistics
Volume 51, Issue 1, Pages 17 - 38
(July 2017) http://dx.doi.org/10.17654/AS051010017 |
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COMPARATIVE ANALYSIS OF THE EFFECT OF DISPERSION AND COMPETITION ON POPULATION SUSTAINABILITY
I. C. Kipchirchir
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Abstract: In this paper, dispersion, population dynamics and competition which are typical characteristic ecological properties of a population are discussed. In particular, a comparative analysis of the effect of dispersion (overdispersion and randomness) and competition (contest and scramble) on sustainability of a single species population is considered. Population sustainability by the environment is captured by the carrying capacity of the environment which is also the equilibrium of the population. In the study, the comparative analysis is restricted to positive growth of a single species population and a stable equilibrium. The results indicate that overdispersed (clustered) population contest for resources whereas random population scramble for resources. The comparative analysis established that population sustainability of overdispersed population characterized by contest competition is more than three times population sustainability of random population characterized by scramble competition. |
Keywords and phrases: single species population, dispersion, population dynamics, carrying capacity, resource, competition, sustainability. |
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