The growth of pure and simple microbial competitors in a moving distributed medium

Document Type

Article

Publication Date

1-1-1992

Abstract

The dynamics of pure and simple competition between two microbial species are examined for the case of interaction arising in a distributed and nonstagnant environment. The environment is modeled as a tubular reactor. It is shown that for relatively small values of the dispersion coefficient (i.e., for small, but nonzero, backmixing of the medium), the two competing populations can coexist in a stable steady state. It has been assumed that the species grow uninhibited and that if there are maintenance requirements they are satisfied from endogenous sources. From numerical studies it has been found that a necessary condition for coexistence is that the net specific growth rate curves of the two competitors cross each other at a positive value of the concentration of the rate-limiting substrate. The model equations have been numerically solved by using the methods of orthogonal and spline collocation. © 1992.

Identifier

0026707308 (Scopus)

Publication Title

Mathematical Biosciences

External Full Text Location

https://doi.org/10.1016/0025-5564(92)90076-9

ISSN

00255564

PubMed ID

1515749

First Page

295

Last Page

313

Issue

2

Volume

111

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