Affiliation: | 1. Landcare Research, , PO Box 40 Lincoln, 7640 New Zealand;2. Landcare Research, , Nelson, 7042 New Zealand;3. Landcare Research, , Hamilton, 3240 New Zealand;4. Department of Conservation, Nelson Marlborough Conservancy Office, , Nelson, 7042 New Zealand;5. Department of Conservation, Southland Conservancy Office, , PO Box 743 Invercargill, 9840 New Zealand;6. Landcare Research, , Auckland, 1142 New Zealand |