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Life Sciences Commons

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Ecology and Evolutionary Biology

Virginia Commonwealth University

2011

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Full-Text Articles in Life Sciences

Non-Lethal Effects Of Dragonfly Predators On The Interactions Between The Tadpoles Of Two Neotropical Hylid Frogs [Poster], Zacharia Costa, James R. Vonesh Jan 2011

Non-Lethal Effects Of Dragonfly Predators On The Interactions Between The Tadpoles Of Two Neotropical Hylid Frogs [Poster], Zacharia Costa, James R. Vonesh

Biology Presentations

Background/Question/Methods

Prey frequently alter their phenotype in response to perceived predation risk in order to reduce vulnerability. Differences in the costs and benefits of such plastic responses to predators can lead to differences in non-consumptive predator effects. Such differences can occur between taxa or through ontogeny for a given species, and may alter interactions between prey and other species in the food web. Less vulnerable prey may respond less to predator cues compared to vulnerable prey and thus may have higher performance in risky environments. Here we build upon previous research on the tadpoles of two hylid treefrogs, Agalychnis callidryas …