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Parameter diagrams showing the qualitative behaviour of host populations when varying different phenotypic properties and the level of effectiveness of the antibiotic δ. Parameters d = 0.05 and ξ = 5 are fixed. (a) Varying growth coefficients of hosts (r) versus effectiveness of antibiotic (δ); ρ = 0.12. (b) Different death coefficients of hosts (ρ) versus effectiveness of the antibiotic (δ); r = 4.
