S. Lehtinen

Residence-colonization trade-off and niche differentiation enable the coexistence of Escherichia coli phylogroups in healthy humans

The paper identifies a residence-colonization trade-off and niche differentiation among E. coli phylogroups in healthy humans, enabling their coexistence through equalizing and stabilizing mechanisms.

Plasmid co-infection: linking biological mechanisms to ecological and evolutionary dynamics

This paper reviews how biological processes of plasmid co-infection are modeled and analyzes their impact on eco-evolutionary outcomes, showing frequency-dependent selection from beneficial and detrimental effects.

Epidemiological dynamics of bacteriocin competition and antibiotic resistance

This study examines bacteriocin dynamics and their link to antibiotic resistance in epidemiological models, finding that diversity can be maintained through competition-colonisation trade-offs rather than rock-paper-scissors dynamics.

Evolutionary mechanisms that determine which bacterial genes are carried on plasmids

This paper uses mathematical modeling to show that moderately beneficial bacterial genes are more likely to be on plasmids due to positive frequency-dependent selection and priority effects.

On the evolutionary ecology of multidrug resistance in bacteria

This paper explains high multidrug resistance frequencies in bacteria through ecological models of strain competition, showing that resistance to different antibiotics often co-occurs due to stable coexistence rather than competitive exclusion.