1. Plant Functional Biology & Climate Change Cluster; University of Technology; Sydney NSW 2007 Australia
2. School of Environmental and Rural Sciences; University of New England; Armidale NSW 2351 Australia
3. Department of Primary Industries; Rutherglen Vic 3685 Australia
4. Department of Primary Industries; Richmond NSW 2753 Australia
5. Department of Environment and Conservation; Western Australia Bentley WA 6983 Australia
6. Department of Mathematics; University of Western Kentucky; Bowling Green KY 42101 USA
7. School of Environmental Science; Murdoch University; WA 6150 Australia