In this work we analyze the transient behavior of the dynamics of multiple species competing in a chemostat for a single resource, presenting slow/fast characteristics. We prove that coexistence among a subset of species, with growth functions close to each other, can last for a substantially long time. For these cases, we also show that the proportion of non-dominant species can be increasing before decreasing, under certain conditions on the initial distribution. (C) 2008 Elsevier Ltd. All rights reserved.
Rapaport, A., Dochain, D., & Harmand, J. (2009). Long run coexistence in the chemostat with multiple species. Journal of Theoretical Biology, 257(2), 252-259. https://doi.org/10.1016/j.jtbi.2008.11.015 (Original work published 2009)