title: Permanence in an intraguild predation model with prey switching.
abstract: Intraguild predation, a form of omnivory that can occur in simple food webs when one species preys on and competes for limiting resources with another species, can have either a stabilizing effect (McCann and Hastings in Proc. R. Soc. Lond. B 264:1249-1254, 1997) or a destabilizing effect (Holt and Polis in Am. Nat. 149:745-764, 1997), depending on the assumptions of the system. Another type of behavior that has been observed in simple food web experiments (Murdoch in Ecol. Monogr. 39:335-354, 1969) is prey switching. Prey switching can occur when the predator prefers the most abundant prey. This has also been shown to be capable of having either a stabilizing effect or a destabilizing effect and even possibly lead to predator extinction (VanLeeuwen et al. in Ecology 88:1571-1581, 2007). Therefore, it is clear that incorporating prey switching into an intraguild predation model could lead to unexpected consequences. In this paper, we propose and explore such a model.
authors: Rosentiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33149, USA. jzabalo@rsmas.miami.edu
authors: Joaquin
authors: J
authors: Zabalo
mesh_terms: D000818:Animals; D017753:Ecosystem; D020387:Food Chain; D008954:Models, Biological; D011235:Predatory Behavior