Dr. Merav Ben-David is an ecologist studying the interaction between animal behavioral and physiological ecology, population dynamics, and ecosystem function. To study those interactions, Merav uses isotopic and genetic tracers as well as various modeling approaches. Her study ranges from investigating the effects of trade-off between nutritional requirements and risk of infanticide on consumption of salmon by female brown bears, and how female decisions made based on this trade-off influence bear-mediated transfer of salmon-derived nutrients to terrestrial vegetation. Similarly, she explores the effects of forest logging on competition between martens and ermines and how such competition influences the dynamics of prey populations. Merav has been studying the behavioral, physiological, and population-level responses of polar bears to climate change since 2001.