title: Group defence and the predator's functional response.
abstract: We derive from first principles the functional response of the predator and the reproduction rate of the prey in the case that the prey form groups as a defence against the predator and the latter captures only single prey. We also give some examples of the resulting predator-prey population dynamics.
authors.affiliation: Department of Mathematics and Statistics, 00014 University of Helsinki, Finland.
authors.forename: S A H
authors.initials: SA
authors.lastname: Geritz
authors.forename: M
authors.initials: M
authors.lastname: Gyllenberg
mesh_terms: D000818:Animals; D003299:Cooperative Behavior; D008954:Models, Biological; D011156:Population Density; D011157:Population Dynamics; D011235:Predatory Behavior