抄録
The purpose of this paper is to reveal the relationship between environmental factors and endangered epiphytic bryophyte distribution in fragmented forests in Kyoto city. Endangered species was based on the definition in Red Data Book of Kyoto Prefecture. The study sites were 27 fragmented forests in Kyoto city. A total of eight endangered species were recorded. Two species (Drummondia sinensis, Leskeella pusilla) were found in more than two study sites, giving enough data to reveal the relationships between the distribution of these bryophytes and environment factors, therefore was analyzed in the following calculation. Using TWINSPAN, the study sites were classified into five groups (Group A to E). D. sinensis occurred frequently in Group C, and the other one; L. pusilla in Group A. Discriminant analysis revealed that the Group C consisted of highly managed forests with larger area and lower tree coverage, and the Group A of unmanaged forests with larger area and higher tree coverage. Management intensity is associated with disturbance, tree coverage with humidity, and area with forest interior environment, affecting strongly the distribution of the endangered species.
