This large, multi-national project aims to better understand the wider implications of species' range shifts in marine ecosystems. Many marine species have shifted their geographical distributions, predominantly poleward, in response to recent oceanic warming. The wider impacts of the redistribution of species and reorganisation of communities and ecosystems is, however, poorly understood. This project focusses on the temperate coastline of Australia, which is a global hotspot for ocean warming, as a case region to better understand the consequences of species range shifts. It also draws upon evidence from other regional hotspots of warming, which may serve as early indicators of the impacts of ocean warming. The project is funded by the Australian National Network in Marine Science, Issues in Marine Science program.