title: Simple metaecoepidemic models.
abstract: We consider a simple predator-prey system with two possible habitats and where an epidemic spreads by contact among the prey, but it cannot affect the predators. Only the prey population can freely move from one environment to another. Several models are studied, for different assumptions on the structure of the demographic interactions and on the predators' feeding. Some counterintuitive results are derived. The role the safety refuge may in some cases entail negative consequences for the whole ecosystem. Also, depending on the system formulation, coexistence of all the populations may not always be supported.
authors.affiliation: Dipartimento di Matematica Giuseppe Peano, Universita' di Torino, via Carlo Alberto 10, 10123, Torino, Italy. ezio.venturino@unito.it
authors.forename: Ezio
authors.initials: E
authors.lastname: Venturino
mesh_terms: D000465:Algorithms; D025041:Animal Migration; D000818:Animals; D050936:Basic Reproduction Number; D003141:Communicable Diseases / Q000453:epidemiology*; D003198:Computer Simulation; D017753:Ecosystem; D020387:Food Chain; D015994:Incidence; D008954:Models, Biological; D011156:Population Density; D011157:Population Dynamics; D011235:Predatory Behavior