I was born and raised in northern Germany. In 1992, I moved to Cornell University, where I am now an Associate Professor directing the Ecology and Management of Invasive Plants Program in the Department of Natural Resources. I develop and implements biological weed control programs; among my target plants are purple loosestrife, garlic mustard, and invasive Phragmites. An ever increasing focus of my team are investigations into impacts of multiple “stressors” including invasive and native plants, earthworms, slugs and deer on a wide range of native organisms. I am the chair of the Cornell Deer Management Committee and therefore are intimately involved in different approaches to deer management at Cornell and in the surrounding municipalities. I have developed a network or deer exclosures to study impact of deer on many species and processes, and I am developing bioindicators to assess effects of different stressors, including deer. The ultimate aim of my work is to increase the conservation values of all lands through development of best management practices.