The effect of control of brushtail possums (Trichosurus vulpecula) on condition of a southern rata/kamahi (Metrosideros umbellata/Weinmannia racemosa) forest canopy in Westland, New Zealand

Possum colonization, which began about 1950, was controlled by poison application in 1970 (peak density) and 1974, or 1974 only, in 2 adjacent blocks (each approximately 6 km2) of rata/kamahi […]