Mechanisms of bio-diversity in Japanese beech forests by using molecular markets.

1.在日本山毛榉林中，在两个物种（钝齿水青冈和Purunus grayana）的幼年阶段观察到Janzen-Connell机制。2.在落叶阔叶林中，我们阐明了叶酚学的重要性（即出叶时间）在决定树种更替和物种多样性中的作用。3.在原始山毛榉林中，4.在一个大的永久性场地（6 ha）中，我们发现了物种多样性与地形条件之间的剂量关系。5.在原始山毛榉林中，通过对日本山毛榉各株成树种子的传播和遗传多样性机制的分析，6.提出了一种基于种子、果实和幼苗母树组织微卫星分析鉴定母树的新方法（He，Rs，FIS）与对照成熟林无差异。

1.Janzen-Connell mechanisms were observed in juvenile stages of both species, Fagus crenata and Purunus grayana in a Japanese beech forest.2.In a deciduous broad-leaved forest, we clarified the importance of leaf phenolgy (i.e.timing of leaf emergence) in determining replacement of tree species and species diversity.3.In a primary beech forest, life history strategies of a understorey shrub, Hydrangea paniculata, are strongly affected by the canopy dynamics of overstorey trees, suggesting the co-existence of the species by compensating interactions.4.In a large permanent site (6ha), we found dose relationships between species-diversity and topographic conditions.5.In a primary beech forest, paternity and maternity analysis were conducted to clarify the seed dispersal of each adult trees and mechanisms of genetic diversity of Japanese beech, by using hypervariable microsatelite markers.6.We present a new approach for the identification of the mother trees based on microsatelite analysis of mother tissues from seeds, fruits and seedlings.7.In several fragmented forests of Japanese beech, the genetic diversity (He, Rs, FIS) was not different from that of the control mature forest.