Habitat-forming species are increasingly advocated as essential management tools, because they support biodiverse and productive foodwebs. In coastal marine systems 95% of all biodiversity is found within biogenic habitats, such as seagrasses, seaweeds and oysters. Yet, these species are in decline threatening the integrity and functioning of coastal marine ecosystems. We are determining the role of genetic diversity in enhancing the resistance and resilience of ecologically and economically important seagrasses and oysters. In parallel we are investigating how changes in structure of habitat-formers caused by global stressors affect associated biodiversity. This research is being conducted at intercontinental scales with collaborators in South America, Europe, New Zealand and Australia. For more information contact A/Prof. Paul Gribben and Dr Adriana Verges.