1. Hawkesbury Institute for the Environment Western Sydney University Penrith NSW 2751 Australia
2. Plant Physiology Division Coconut Research Institute of Sri Lanka Lunuwila 61150 Sri Lanka
3. Forest and Natural Resources Management, College of Environmental Science and Forestry State University of New York Syracuse NY 13210 USA
4. Environmental and Climate Sciences Department Brookhaven National Laboratory Upton NY 11973 USA