Urgent research is needed to guide more effective control measures for Nassella grass invasions in South Africa. This was the finding of an extensive literature review by C·I·B-funded PhD student Anthony Mapaura, with inputs from researchers at the Centre for Biological Control at Rhodes University and the University of the Free State’s Qwaqwa campus, and C·I·B Director Dave Richardson.
Tall-statured grasses often have generalisable impacts related to their ability to produce and accumulate a large amount of biomass. The idea of tall-statured grasses as being a useful functional group for invasion science was explored in a recent article published in Biological Invasions.
Millions of years ago a number of species independently evolved a new type of photosynthesis that allowed them to cope better with low CO2 concentrations in the atmosphere. This “innovation” is called C4 photosynthesis and despite evolving a number of different times, it evolved within just a few groups of plants, most notably among the grasses.