
Prof. Geofe O. Cadiz, and her co-authors, with their paper “Environmental factors associated with the abundance of forest wiregrass (Tetrarrhena juncea), a flammable understorey grass in productive forests” won the 2020 Australian journal of Botany student prize. The rationale was to test the potential for Tetrarrhena juncea to be part of a grass–fire cycle, whereby disturbance can promote the dominance of flammable grasses, thereby causing a disturbance–flammability positive feedback. The findings suggested that in areas with wiregrass, disturbances such as fire that reduce tree canopy cover can promote wiregrass dominance, which may, in turn, increase forest flammability. Such feedbacks are globally important, as they will affect how fire regimes respond to climate change.