Possums are selective browsers and defoliate preferred plant species. They have killed some of the canopy trees in this forest, but have had little effect on neighbouring trees. When a large proportion of a tree’s leaves are eaten in each growing season, it can decline in vigour and then die. Over long periods of sustained browsing, the composition of the forest changes – favoured species such as rātā, kāmahi, tree fuchsia and five-finger die and are replaced by plants that are not palatable to possums.
Te whakamahi i tēnei tūemi
Department of Conservation
This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.