PD Dr. Christian C. Voigt is a wildlife biologist and head of the project. He has a background in animal physiology, ecology and behavioral biology. Since 2001, he is a staff research scientist in the Evolutionary Ecology Research Group of the Leibniz Institute for Zoo and Wildlife Research (IZW) in Berlin. He is an expert in the use of stable isotopes as tracers for dietary preferences, migratory routes and trophic positions of animals, and has studied isotopes in mammals, mainly bats, ungulates and carnivores. Dr. Voigt is head of the stable isotope laboratory of the IZW, which includes state-of-the art isotope ratio mass spectrometer for measuring stable isotopes of carbon, nitrogen, hydrogen and oxygen in solid, liquid and gaseous samples (depending on element). Dr. Voigt is also a lecturer at the Freie Universität Berlin, guest lecturer at the Ben Gurion University of the Negev and Co-editor of the Journal of Mammalogy.