Mika Takiya

Variation in seed production among years and among individuals in 11 broadleaf tree species in northern Japan

AbstractSeed production is the most problematic part of tree regeneration and is the least amenable to control by silvicultural management. Understanding variability in seed production among years and among trees will allow better planning of seed collection for seedling production and natural regeneration. We estimated the extent of variability in seed production among years and within years among individual trees. Specifically, we measured individual annual seed production in 11 woody species in Hokkaido, northern Japan. We analyzed the coefficient of variation (CV) of seed production among years and among individual trees. We used population- and individual-based CVs (CVpt and

Basal area growth and mortality of Betula maximowicziana affected by crown dieback in a secondary forest in Hokkaido, northern Japan

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The effects of early and intense pruning on light penetration, tree growth, and epicormic shoot dynamics in a young hybrid larch stand

) to estimate the variability in seed production among individual trees. Alnus hirsuta, in which these CVs among trees were maximal, will require further analyses of the spatial patterns of seed production among individual trees. Additionally, we used population- and individual-based CVs (CVpy and

Prediction of birch airborne pollen counts by examining male catkin numbers in Hokkaido, northern Japan

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Effects of Different Thinning Intensities of Japanese Larch (Larix kaempferi) on the Annual Ring Structure and Dynamic Young's Modulus of Logs

) to estimate the variability in seed production among years. The