1. School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
2. School of Forestry, Northern Arizona University, Flagstaff, AZ, USA
3. Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, New Zealand
4. USDA Forest Service, Southern Research Station, Athens, GA, USA
5. Scion (New Zealand Forest Research Institute), Christchurch, New Zealand
6. Swiss Federal Research Institute WSL, Birmensdorf, Switzerland