Dr John Morgan is a research scientist in the Department of Botany at La Trobe University, Bundoora. John has worked for many years in the grassy ecosystems of southern Australia, concentrating on understanding the long-term changes that occur in species composition in the context of land-use change, ecological management and plant invasions, relating his findings to conservation and biodiversity.
Personally, I think it’s very hard. We can re-establish early successional species (they’re the good colonizers) by scraping away the topsoil and sowing them much like you would a lawn. But will they persist for the long-term? Who knows? We know this option is expensive too, so it’ll never be applied at big scales. Instead, we need to recognize that the enhancement of degraded remnants is probably a better long-term option.