1. Forest Science Centre; NSW Department of Primary Industries; PO Box 100; Beecroft; NSW; 2119; Australia
2. Hawkesbury Institute for the Environment; University of Western Sydney; Penrith; NSW; 2751; Australia
3. Department of Biological Sciences; Macquarie University; North Ryde; NSW; 2109; Australia
4. University of Technology Sydney; PO Box 123; Broadway; Sydney; NSW; 2007; Australia
5. Faculty of Agriculture, Food & Natural Resources; University of Sydney; Sydney; NSW; 2006; Australia
6. University of Antwerp; Research Group of Plant and Vegetation Ecology; Department of Biology; Campus Drie Eiken; Universiteitsplein 1; 2610; Wilrijk; Belgium
7. Southern Swedish Forest Research Centre; Swedish University of Agricultural Sciences; PO Box 49; SE-230 53; Alnarp; Sweden
8. School of Biological, Earth and Environmental Sciences; University of New South Wales; Sydney; NSW; 2052; Australia