Although brushtail possums (Trichosurus vulpecular) are known to browse many major trees in New Zealand’s conifer/broad-leaved forests, little is known of their long-term effects. We examined long-term (14-25 years) changes in five conifer/broad-leaved rainforests, which have had various histories of possum occupancy and control, and various degrees of mortality of canopy tree species. All five contain species known to be browsed by possums, such as Hall’s totara (Podocarpus hallii), kamahi (Weinmannia racemosa), and southern rata (Metrosideros umbellate). Although extensive dieback of canopy species had occurred in some forests before censuses began, most showed no substantial changes in species composition during the census period.
|Author||Bellingham, P. J., Wiser, S. K., Hall, G. M. J., Alley, J. C., Allen, R. B. and Suisted, P. A.|
|Secondary title||Science for Conservation|
|Publisher||Department of Conservation|
|ISBN/ISSN||1173-2946 / 0-478-21786-2|