title: Predator-prey interactions, reosurce depression and patch revisitation.
abstract: Generalist predators may be confronted by different types of prey in different patches: sedentary and conspicuous, cryptic (with or without refugia), conspicuous and nonsocial, or conspicuous and social. I argue that, where encounter rates with prey are of most importance, patch revisitation should be a profitable tactic where prey have short "recovery" times (conspicuous, nonsocial prey), or where anti-predator response (e.g. shoaling) may increase conspicuousness. Predictions are made for how temporal changes in prey encounter rates should affect revisit schedules and feeding rates for the 4 different prey types.
authors.affiliation: U.S. Fish and Wildlife Service, Patuxent Wildlife Research Center, Laurel, MD 20708.
authors.forename: R M
authors.initials: RM
authors.lastname: Erwin
keywords: Foraging; patch; predator-prey; temporal aspect