Affiliation: | 1. CSIRO Forestry and Forest Products , Private Bag 10, Clayton South , VIC , 3169;2. Department of Forestry , University of Melbourne , Parkville , VIC , 3052;3. State Forests of NSW , Locked Bag 23, Pennant Hills , NSW , 2120;4. CSIRO Wildlife and Ecology , PO Box 84, Lyneham , ACT , 2602 |