Research synthesis of gamba grass

Gamba grass (Andropogon gayanus) was introduced to northern Australia as a pasture species and has since invaded savanna ecosystems, impacting on biodiversity and fire regimes. Gamba grass is listed as a Weed of National Significance and there is a need to synthesise and present the large body of research on gamba grass and its impacts in a way that is easily accessible by land managers, policy-makers, educators and other researchers across northern Australia and beyond.

This project will synthesise the comprehensive research conducted on gamba grass under the National Environmental Science Program and its predecessors the National Environmental Research Programme and the Tropical Rivers and Coastal Knowledge research consortium. Key findings from the projects Fire and weeds in the Top End, Improving gamba grass control on Cape York Peninsula and Gamba grass effects on savanna carbon and fire, among others, will be synthesised into a visually appealing web resource aimed at meeting the high demand for information on gamba grass from those tasked with managing this invasive weed and also serve as a resource for education.

  • Gamba can grow up to four metres tall and drastically alter native savanna landscapes. Photo by NESP Northern Hub.
  • This research synthesis will include information on the role of fire in gamba's life cycle. Photo by Sam Setterfield.
  • Case studies of gamba management success will also be highlighted through this synthesis project. Photo by NESP Northern Hub.
  • The project will also highlight the possible trajectories and impacts of landscapes affected by gamba infestations. Photo by NESP Northern Hub.