Invasion of Quercus variabilis and Castanopsis cuspidata seedlings into secondary forests on the western slope of Mt. Miroku and adjacent hill in Kasugai City, Aichi Prefecture, Japan

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  • Hiroki Shozo
    Graduate School of Human Informatics, Nagoya University

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  • 愛知県春日井市の弥勒山西斜面および山麓部丘陵地帯におけるアラカシおよびツブラジイ実生の二次林への侵入

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Abstract

Successional trends from secondary forests to evergreen broad-leaved forests were investigated on the western slope of Mt. Miroku and an adjacent hill in Kasugai City, Aichi Prefecture, Japan. The results show that many seedlings of Castanopsis cuspidata and Quercus glauca grew on the forest floor of secondary forests that comprised mainly Pinus densiflora and Q. serrata. This observation suggests that the secondary forests will develop into evergreen broad-leaved forests in the future. There were differences in distribution patterns between the 2 evergreen species C. cuspidata and Q. glauca. The latter showed a wider distribution and larger densities than the former. Three patterns of successional trends of the secondary forests were recognized : 1) rapid regeneration of C. cuspidata in secondary forests in areas near mother tree populations ; 2) development of mixed forests of C. cuspidata and Q. glauca, changing into more C. cuspidata - predominant forests ; and 3) long persistence of Q. glauca or other oaks in stressful habitats. Japanese jays (Garrulus glandarius japonicus) may play an important role in seed dispersal, particularly of acorns of Q. glauca.

Journal

  • Vegetation Science

    Vegetation Science 18 (1), 31-37, 2001

    The Society of Vegetation Science

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