Takashi Masaki

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Conversion of natural forests to other land use results not only in a decrease of forest area but also in the degradation of remnant forests as a habitat for forest animals. Although such degradation due to an increase of forest edges has been studied most intensively, other factors such as forest shape may also contribute to the degradation. In this study,(More)
We examined the relationship between the community structure of wood-decaying fungi, detected by high-throughput sequencing, and the decomposition rate using 13 years of data from a forest dynamics plot. For molecular analysis and wood density measurements, drill dust samples were collected from logs and stumps of Fagus and Quercus in the plot. Regression(More)
This study investigated the fleshy fruit characteristics of 28 woody species in a Japanese temperate forest where large sedentary seed-dispersing mammals are present. We tested whether the findings in previous studies in temperate forests of Europe and North America are universal or not. Results have suggested that fruits of all species were eaten both by(More)
This data paper reports litter fall data collected in a network of 21 forest sites in Japan. This is the largest litter fall data set freely available in Japan to date. The network is a part of the Monitoring Sites 1000 Project launched by the Ministry of the Environment, Japan. It covers subarctic to subtropical climate zones and the four major forest(More)
In habitats with elevational gradients, differences in the fruiting phenology of a single key food resource may affect the feeding behavior of an animal. The objectives of the present study were to assess (1) whether or not fruiting phenology and characteristics of Quercus crispula acorns differed with changes in altitude (900–1,400 m asl) and area; (2)(More)
This data paper reports census data of ground-dwelling beetle and other fauna of the forest floor environment; collections were made from a network of 22 forest sites in Japan. To our knowledge, this represents the largest dataset for long-term monitoring of a ground-dwelling beetle community and other taxa in a ground environment in forests, which covers a(More)
The possibility of restoring natural broadleaf forests may be decreased by the effects of plantation management, particularly in sites that undergo repeated rotation. We investigated the following two working hypotheses about the effects of repeated plantation of conifers on the natural regeneration of woody saplings in cool-temperate Japanese cedar(More)
Tree species are endangered mainly by the exploitation of old-growth forests, and in Japan by a change from traditional coppicing (Satoyama) to monoculture plantations. The protection of old-growth forest or the revival of traditional Satoyama management might avoid local extinctions. To evaluate these possibilities, we developed a model to project the(More)
While it is not clear exactly what this greening actually represents in terms of shifts in plant communities (Fung, 1997), it is believed that an increase in deciduous shrubs is responsible for much of the greening (Jia, Epstein & Walker, 2004). It has been projected that the increase in shrubs will alter the surface energy balance and carbon balance at(More)
Studies on lianas conducted within temperate forest stands have provided scant information on host trees, microsites, past disturbances, and liana size classes. Studies focussing on East Asia are also lacking, although this information is important for a comprehensive understanding of temperate liana ecology. The aim of this study was to compare the liana(More)