weeds on the move!

A recent CSIRO report for the Australian Government’s Land and Water Australia looked at what effects climate changes anticipated for 2030 and 2070 might have on the distribution of 41 weeds that pose a threat to agriculture (“sleeper” species) and the natural environment (“alert” species).

“We found that climate change will cause most of these weeds to shift south, with wet tropical species making the greatest move – over 1000km,” CSIRO researcher, Dr John Scott said.

“The predicted move south by both native and introduced plants would produce a ‘vacuum’ in northern Australia so, to prevent lurking species from invading, a new list of alert and sleeper weeds for this region needs to be developed,” Dr Scott said. Science Daily, 16 Apr 2009