A high biodiversity is one of the key factors for resistance of forests against forest pests and invasive alien species. My research is focusing on insects and other animals in temperate and sub Mediterranean forests. I am interested in the behavior, ecology, population dynamics and conservation bio-control of forest pests and invasive alien species. On the other hand, I investigate the influence of forest management on biodiversity, and factors influencing the distribution and trends of forest species. Combining the results of these two topics would contribute to sustainable management of forests and its biodiversity.