title: Persistence of a four species food chain with full omnivory.
abstract: We consider here a food chain composed of four species with full omnivory with Lotka-Volterra dynamics. Conditions for uniform persistence and weak persistence of the food chain are derived. It is also shown that the system exhibits a heteroclinic cycle.
authors.affiliation: Department of Mathematics, Jadavpur University, Calcutta, India.
authors.forename: A
authors.initials: A
authors.lastname: Sikder
authors.forename: A B
authors.initials: AB
authors.lastname: Roy
mesh_terms: D000818:Animals; D017753:Ecosystem; D005247:Feeding Behavior / Q000502:physiology*; D005502:Food; D008954:Models, Biological; D011235:Predatory Behavior / Q000502:physiology