A study was carried out on small fauna in the fallow fields in Nagoya City (35 03'N, 136 57'E, alt. 5 to 20 m), on Apr. 1970, Dec. 1979 to Apr. 1981 except Aug. to Oct. 1980. There were trapped large Japanese field mouse (Apodenus specious), house mouse (Mus musculus molossinus), harvest mouse (Micromys minutus), Japansese white-toothed shrew (Crocidura dsinezumi) and greater Japanese mole (Mogera kobeae), of which the field mice and the house mice were predominant. Estimated by their composition captured at each trap station, habitat segreagtion seem to be distinct between three rodent species. The field mice were limited to tall weed or grass-lands with dense undergrowth (for example, the vegetation of Solidago altissima, Miscanthus sinensis or Phragmites communis), whereas the house mice centered on short grasslands (for example, the vegetation of Bromus unioloides, Setaria viridis, Panicum bisulcatum and so on) . However the harvest mice were not intensively restricted to specific habitats.

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The food habits of brown bears, Ursus arctos yesoensis, in Hokkaido (Japan) were investigated during 1975-1982 by 1) analysis of scat and stomach contents, 2) visual field observations as well as from 3) damages to crops and livestock. The inhabitable range of brown bears in Hokkaido is almost restricted to the mountainous and hilly forest areas, that occupy about a half of the island. Brown bears are omnivorous, feeding on natural harbs, fruits, and wild-animals including insects. Some individuals eat crops and livestock, and very rarely even humans. In food preferance, they were either vegetarian, carnivorous, or omnivorous, often being strongly selective of kinds and parts of food. Irrespective of the amount or distribution of food items, their feeding activities were quite different sometimes eating greedily, while foraging sporadically at other times. At about the age of 4 months, new-born cubs started eating the same food as their mother in addition to its mother's milk. The food difference was recognized between bears in different habitats, such as high montain regions and lowlands. They stayed in high mountain regions during the period when they could find enough food after melting of the snow. When they killed other bear, deer, livestock or man or gathered gained crops, they frequently transferred them to their favorite places and concealed the carcass with soil, fallen leaves, chopped long harbs, etc.

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A faunal survey of Awajishima (Awaji Island) was undertaken during January 23-26, 1982. Awajishima lies in the Setouchi Sea in close vicinity to Honshu and Shikoku, and has an area of 592.9 km².
1) Excepting Chiroptera, land mammals sustained to inhabit the island were following 16 species belonging to 6 orders. Insectivora; Crocidura dsinezumi, Urotrichus talpoides, Mogera kobeae : Primates; Macaca fuscata : Lagomorpha; Lepus brachyurus : Rodentia; Sciurus lis, Apodemus speciosus, Apodemus argenteus, Micromys minutus, Mus molossinus: Carnivora; Nyctereutes procyonoides, Martes melampus, Mustela sibirica (M.s. coreana and M.s. itatsi) : Artiodactyla; Sus scrota leucomystax, Cervus nippon.
2) There were not found the common species such as Petaurista leucogenys, Eothenomys smithi and Meles meles anakuma. It was probable that Vulpes vulpes became extinct in the last 20-30 years.
3) In the ventral fur of Urotrichus talpoides, there were found the partial albinisms of several grades to occure quite commonly. Large number of Leptotorombidium kansai (Trombiculidae, Acarina) were parasitic on the tail of Urotrichus talpoides and their frequency of occurrences was very high.
4) The female chigoe, Tunga caecigena (Tungidae, Siphonaptera) were obtained in the conchae of 4 of 86 specimens of Adopemus speciosus collected in Sumoto City.

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[in Japanese]

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