In general my research is directed into six core areas, namely
- patterns and drivers of plant invasions,
- invasive species risk assessment,
- long-term assessments of impacts on species and communities by alien plant invasions,
- analysis of global patterns of alien plant invasions in protected areas,
- non-plant invasions in protected areas,
- working at the science–management–policy interface. Working across these spheres also allows for contributing to the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) thematic assessment on Invasive alien species and their control.