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Acquired Predator Recognition by Fathead Minnows: Influence of Habitat Characteristics on Survival
Authors:Kyra J. Gazdewich  Douglas P. Chivers
Affiliation:(1) Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, Saskatchewan, S7N 5E2, Canada
Abstract:In this study we conditioned fathead minnows (Pimephales promelas) to recognize the odor of a perch (Perca flavescens) by exposing them to perch odor coupled with minnow alarm cue. We then staged encounters between the predator and prey in order to assess whether the predator odor training had any effect on survival of the prey. We tested for a survival effect in the presence and absence of shelter. Our results indicate that fish trained with alarm signals to recognize predators gained a survival benefit during staged encounters with a predator and that habitat characteristics influenced the survival of conditioned fish.
Keywords:Predator recognition  predator training  chemical alarm signals  predator–  prey interactions  survival  habitat  shelter  fathead minnow  Pimephales promelas  yellow perch  Perca flavescens
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