Professor Helen Roy MBE Hon. FRES, is an ecologist at the UK Centre for Ecology & Hydrology. Her research focuses on the effects of environmental change, particularly biological invasions, on biodiversity and ecosystems. Helen leads many collaborative national and international research projects on biological invasions with a focus on enhancing information to inform understanding of the impacts of invasive alien species. Helen also enjoys science communication and public engagement with research, which led to her interest in citizen science; an approach that she has implemented in a number of contexts perhaps notably the collaborative studies she has led alongside volunteers to track the spread of the harlequin ladybird, Harmonia axyridis and other alien species. Helen leads a Defra-funded project to produce a comprehensive information portal on non-native species in Great Britain, which also includes annual reports on status and trends of invasive alien species and the development of an alert system for people to report sightings of concern. Over the last few years, she has had the privilege of working with the UK Overseas Territories to predict and prioritise invasive non-native species. Her research on invasive non-native species has received international recognition and she is currently one of the co-chairs for a thematic assessment of invasive alien species for the Intergovernmental Panel on Biodiversity and Ecosystem Services (IPBES).