AbstractThe annual leaf fall of three species of cool temperate forest trees was examined for two different consecutive seasons at two localities in Tasmania. The reverse summation of the sequential fall of leaves throughout an annual cycle provided a population biomass that was amenable to life table analyses.Rates of leaf fall were compared between species at different times, and were related to temperature. The threshold temperature for leaf fall to commence was approximately 11–12°C. Estimates of the probability of leaves remaining on trees at different times through the cycle were also obtain