His primary interests are in the effects of flow variability on riverine ecosystems, especially the landscape scale effects of floods and droughts. His research combines empirical field studies with innovative quantitative modelling approaches. He has extensive experience working on river management and environmental flow issues in Australia and internationally, and has authored or co-authored more than 50 peer-reviewed papers and numerous peer reviewed technical reports. His research focus is supported by active engagement with regional, national, and international water and natural resource management agencies to support evidence-based planning and decision making.