New Zealand forests have been and are shaped by a suite of disturbance types that vary in both their spatial extent and frequency of recurrence. Post-disturbance forest dynamics can be complex, non-linear, and involve multiple potential pathways depending on the nature of a perturbation, site conditions, and history. To capture the full range of spatial and temporal dynamics that shape forest ecosystems in a given area, we need to use and synthesise data sources that collectively capture all the relevant space-time scales.
The Hunua Range consists of approximately thirty square miles of dense mature rain forest and an equal area of scrub and second growth. It is situated nearly thirty miles south-east of Auckland City on the western edge of the Firth of Thames (Fig. 1.) The range comprises a group of deeply dissected, up-faulted blocks of Mesozoic greywacke. The upland region is sharply delimited from the rolling lowlands by four well-defined fault lines in the east, south and west. To the north the area dips gradually into the Tamaki Strait and the Papakura-Clevedon lowland.
Home range dimensions and habitat use by ship rats (Rattus rattus) at Puketi, a kauri (Agathis australis) forest in Northland, were examined by live capture and radio-tracking over five weeks in September and October 1993. Home ranges of six females and five males averaged 0.86 ha in area and 174 m in length, with no significant difference in range area or length between males and females. There was substantial overlap in ranges between and within sexes.