Dr. Daniel Montoya Life Sciences Building, University of Bristol, Bristol, United Kingdom.Network perspectives of biological communities are increasingly recognised as an important tool for guiding conservation policies. The reason for this is that network properties underpin many aspects of the structure and stability of biological communities, as well as the provision of fundamental ecosystem functions and services such as pollination, decomposition, biomass production, pest control, and water regulation. In this talk I will use a food web approach to address several aspects of the structure, stability and dynamics of complex biological communities. I will also present ongoing research exploring the effects of climate change in food webs, as well as examples of how species interaction networks approaches can be applied in restoration ecology.