Ooyo Seibutsu (Japan)

寄生線虫の一種，Srivastavanema musasabi （線虫綱，ヘリグモソマム上科） が富山県産ニホンモモンガ （Pteromys momonga） および北海道産エゾモモンガ （P. volans） から得られ，形態学的に記載された。これはこれらの2種のモモンガからの初記載であり，富山県と北海道からの新産地報告となる。

In our country, many parts of the land are mountain area. It is difficult for people to live where mountain area consists of many steep slopes. However, agriculture has been performed since ancient ages in the landslide area of mountain terrain, because there are many gentle slopes, much groundwater and fertile soil. We have studied recently on the countermeasures against the landslide, the lifestyle that is coexisted with the landslide phenomenon, and the land use.In this paper, the ecosystem feature of animals and plants in a landslide area was investigated as an example of the large-scale landslide of Shikoku Mountains. The landslide area has various micro-topographic features, that is, diverse ecosystems and land use are accepted by comparing a landslide area with the adjoining non-landslide area. The conservation methods of the diverse ecosystems are important without serious natural disaster in the landslide area, where is distributed as like belt and island in the steep mountains area.