Ecosystem models are increasingly being used to help support management and for predicting the ecosystem impacts of fishing and climate change. Many models represent detailed trophic interactions but these interactions can depend on the traits of individuals and species. Moreover, pressures such as fishing and climate change can affect the way in which traits are evolving in real systems. However, evolutionary processes are often ignored in ecosystem models. As a result, the consequences of evolutionary changes are not yet understood in an ecosystem context. To address this issue, food web models have begun to incorporate evolutionary processes using an approach called adaptive dynamics. This poster explains how to use adaptive dynamics within food web models, including key concepts, advantages and limitations. Future developments and applications of this framework will also be presented.