Abstract:Annual seedfall was measured over a 24-year period for three canopy species, Fraxinus platypoda, Pterocarya rhoifolia, and Cercidiphyllum japonicum, in a riparian forest in the Chichibu Mountains, central Japan. We collected seeds from 20 traps approximately every month, except in the winter. Fraxinus platypoda and P. rhoifolia seedfall fluctuated, with a 2-year cycle. The seedfall of C. japonicum also fluctuated, but this species produced seeds every year, with an approximate 4-year cycle. The simple moving a… Show more
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