Dispersal, disease and life-history evolution

Abstract:

Discrete-time susceptible-infective-susceptible (S-I-S) disease transmission models can exhibit bistability (alternative stable equilibria) over a wide range of parameter values. We illustrate the richness generated by such 'simple' non-linear systems in the study of two patch epidemic models with disease-enhanced or disease-suppressed dispersal. Dispersal between patches can have a profound impact on local patch disease dynamics. In fact, dispersal between patches may give rise to bistability in parameter regimes without bistability in single patch models. © 2001 Elsevier Science Inc. All rights reserved.

Año de publicación:

2001

Keywords:

• metapopulation
• Patches
• Dispersal
• bistability
• Geometric growth

Fuente:

scopus