A team formed by researchers from BC3 (Ikerbasque Research ProfessorJorge Curiel Yuste), Transilvania University of Brasov (Ana-Maria Hereş, Alexandru Lucian Curtu, and Ion Catalin Petritan), and the National Research and Development Institute in Forestry "Marin Dracea" - ICAS (Any-Mary Petritan) is trying to understand how vulnerable the Transylvanian forests are to the increasingly longer and more frequent summer droughts associated with climate change. For this, they are studying the physiological and ecological patterns that might explain what makes some tree species to be more resilient to drought, while other species to be so vulnerable to them.