COMMUNITY STRUCTURE OF A SPECIES-RICH TEMPERATE FOREST, OGAWA FOREST RESERVE, CENTRAL JAPAN
COMMUNITY STRUCTURE OF A SPECIES-RICH TEMPERATE FOREST, OGAWA FOREST RESERVE, CENTRAL JAPAN
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DOI：
10.1007/bf00045549
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发表时间：
1992-02-01
期刊：
影响因子：
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通讯作者：
NAKASHIZUKA, T
中科院分区：
文献类型：
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作者：
MASAKI, T;SUZUKI, W;NAKASHIZUKA, T
物种组装和生态位分化进行了研究，未来的物种组成预测简单的马尔可夫模型，在日本中部的小川森林保护区的古老的落叶林。在我们的6公顷研究点的优势种是栎，山毛榉，和F。种群参数排序显示出四种不同的生活型和更新生态位组合。种间空间相关的聚类分析显示，3组物种。聚类A中的种，如F.而B群的Q. serrata，发生于沿着山脊。聚类C中的种，如F. crenata，没有表现出任何特定的栖息地偏好。簇B和C进一步分成三个较小的簇（a-c）。集群Ba和Bb都包括不耐荫的物种。在集群Ba的物种有大的集群大小（> 1500 m2），反映了大规模干扰后的更新。集群Bb中的物种具有较小的丛大小（< 400 m2），反映了局部干扰后的再生。聚类Ca和Cb分别主要包括耐荫种和不耐荫种。马尔可夫模型预测，不耐荫的物种，特别是那些在集群Ba，将被淘汰。因此，在该森林群落中，物种通过生境和更新生态位的分化而共存。然而，一些物种，如锯齿栎，在大规模干扰或人类活动后再生。
Species assembly and niche differentiation were studied, and future species composition was predicted by simple Markov models, in an old-growth deciduous forest at the Ogawa Forest Reserve in central Japan. The dominant species in our 6 ha study site are Quercus serrata, Fagus japonica, and F. crenata.An ordination by population parameters revealed four different combination 3 of life forms and regeneration niches. Cluster analysis based on interspecific spatial correlation revealed three groups of species. The species in cluster A, such as F. japonica, occurred at the bottom of the valley, while those in cluster B, such as Q. serrata, occurred along ridges. Species in cluster C, such as F. crenata, did not show any particular habitat preference. Clusters B and C were further divided into three smaller clusters (a-c). Both clusters Ba and Bb included shade intolerant species. Species in cluster Ba had large clump sizes (> 1500 m2), reflecting regeneration following large-scale disturbances. Species in cluster Bb had smaller clump sizes (< 400 m2) reflecting regeneration following local disturbances. Clusters Ca and Cb mainly included shade tolerant species and shade intolerant species, respectively. Markov models predicted that shade intolerant species, particularly those in cluster Ba, would be eliminated. Thus, species coexist by differentiation of both habitats and regeneration niche in this forest community. Some species such as Quercus serrata, however, regenerate following large-scale disturbances or human activity.