Predator presence decreases food consumption in juvenile Xenopus laevis

Paul E Duggan, Christine Prater, James Carr, Breanna Harris

Research output: Contribution to journalArticlepeer-review

Abstract

Predators impact prey in direct (lethal) and indirect (non-lethal) manners. Predator-avoidance models capitalize on the non-lethal effects of predators to study how predator-induced fear impacts prey behavior and physiology. Here, we aimed to develop a predator avoidance model to determine how predators alter feeding and anxiety-like behavior in the African clawed frog (Xenopus laevis). We determined (1) the repeatability of frog behavior over time, (2) the effect of a stimulus (nothing, a size-matched or a large conspecific [potential predator]) on frog behavior, and (3) the effect of a stimulus on frog behavior in the presence of food. Twelve juvenile experimental frogs were exposed to all three stimulus conditions over 1 week. We predicted that (1) frog baseline behavior would be repeatable, and that (2) the presence of the large frog, but not size-matched frog, would increase fear and anxiety-like behaviors (hiding and inactivity) and would decrease food consumption and the number
Original languageEnglish
Pages (from-to)2005-2015
JournalBehavioral Ecology and Sociobiology
DOIs
StatePublished - Nov 2016

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