Beyond Abundance: An experimental study of the effects of predators on prey behaviour and reproduction

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Understanding the influence of top predators on community composition and population dynamics at lower trophic levels is a central problem in ecology, with important implications for ecological theory and conservation biology. Our study will be among the first to examine effects of presence and absence of top-level predators on the behaviour, reproduction, and microhabitat use of mid-level predators. Understanding how the behaviour and ecology of lower-level species change in response to changes in abundance of top-level predators will increase the ability of managers to mitigate the impacts of changes in predator abundance on managed ecosystems.