Abstract
Recently, abandoned paddy fields as space for conserving biodiversity, has received much attention. Therefore, it is necessary to investigate about relationship between the extensive cultivation management and habitat use of small animals in abandoned paddy fields. This research aimed to clarify basic utilization of the Japanese field mouse (Apodemus speciosus) and vegetation in the abandoned paddy fields in suburban area of Tokyo where were managed with traditional cultivation methods. In the survey area, the field mouse inhabited round the year. The population of the field mouse increased in September and April, the grass management didn't carry out during high activity month of mice. It is suggested that extensive cultivation management in the survey area was effective for conserving the Japanese field mouse.
