Journal of the Mammalogical Society of Japan
Online ISSN : 1884-393X
Print ISSN : 0546-0670
ISSN-L : 0546-0670
Volume 8, Issue 6
Displaying 1-9 of 9 articles from this issue
  • Toshihiro HAZUMI, Naoki MARUYAMA, Eikichi NOZAKI, Hiroyuki WATANABE, K ...
    1981 Volume 8 Issue 6 Pages 191-193
    Published: December 25, 1981
    Released on J-STAGE: August 25, 2010
    JOURNAL FREE ACCESS
    Two Japanese black bears (Selenarctos thibetanus), an adult male and an adult female with a cub, were radio-tracked in Omote-Nikko, Tochigi Prefecture in summer 1978. The male spent three days in an area of about 26 ha around the trap site of Ide-sawa, and moved to the south slope of Mt. Tanze two kilometers in distance from the trap site. He spent there 10 days in an area of about 38ha. Then his radiocollar dropped out. On the other hand, the female spent three days in an area of about 20ha west of the trap site of Ohsawa, and then disappeared. However, she was sighted with new two cubs on the ton of Mt. Tanze in the next summer.
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  • Taketo YAMAJI, Noboru MANABE, Eimei SATO, Shigeki WATANABE, Takehiko I ...
    1981 Volume 8 Issue 6 Pages 194-200
    Published: December 25, 1981
    Released on J-STAGE: August 25, 2010
    JOURNAL FREE ACCESS
    The distributions and histochemical characteristics of sebaceous and sweat glands were studied in Mustela sibirica coreana and Mustela sibirica itatsi. The density of the distributions of sebaceous glands was higher in the cheek, the back of the hands, the instep of the foots and the region around the anus than in the other portions. Sebaceous glands were classified into two types (Type I, Type II) according to glucose-6-phosphate dehydrogenase activity, and moreover Type I was subdivided into two types (Type Ia, Type Ib) for the differences of 20a-hydroxysteroid dehydrogenase and aldolase activities. Type Ia gland was observed in the cheek, Type Ib was observed in the whole body and Type II was observed around the prepuce. The activities of steroid dehydrogenases in Type II gland were stronger than those in Type I gland, but the activities of nicotin amide adenine dinucleotide tetrazolium reductase and glucose-6-phosphate dehydrogenase in Type II gland were weaker than those in Type I gland. The peculiar localization of β-hydroxybutyrate dehydrogenase was observed in Type II gland. The density of the distribution of sweat glands was higher in the cheek than in the other portions. Sweat glands were classified into two types (Type I, Type II) according to steroid dehydrogenases activities and Type I glands were furthermore classified into three types (Type Ia, Type Ib, Type Ic) according to the differences of nicotin amide adenine dinucleotide tetrazolium reductase and aldolase activities. Type Ic was observed in the whole body, Type Ia in the cheek, Type Ib in the back of the forehand, Type II was observed around the prepuce. The distributions and histochemical characteristics of sebaceous and sweat glands were not different between Mustela sibirica coreana and Mustela sibirica itatsi.
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  • Tatsuo YABE
    1981 Volume 8 Issue 6 Pages 201-202
    Published: December 25, 1981
    Released on J-STAGE: August 25, 2010
    JOURNAL FREE ACCESS
  • Takeo MIYAO, Hajime HANAMURA, Eiichi SAKAI, Yasushi UEMATSU, Kazuhiro ...
    1981 Volume 8 Issue 6 Pages 203-210
    Published: December 25, 1981
    Released on J-STAGE: December 09, 2010
    JOURNAL FREE ACCESS
    Faunal surveys of Mishima Island and two islets of Rokuto Islands (Oshima Island and Aishima Island) were undertaken during May 29-June 1, November 27--December 1, 1980.
    1) Mishima Island lies in the Japan Sea about 46.3km off the northern coast of south-western Honshu and has an area of 7.86km2. There were obtained Urotrichus talpoides, Crocidura dsinezumi and Mus molossinus (Table 1) . Urotrichus talpoides of Mishima Island had larger body sizes than that of Honshu (Table 2), and there were found partial albinisms of several grades to occur quite commonly in Urotrichus talpoides specimens captured (Fig. 4) . Except for these three species, it was surposed that the wild land mammal inhabiting on Mishima Island was Mustela sibirica only.
    2) Oshima Island lies in the Japan Sea about 7.5 km off the northern coast of southwestern Honshu and has an area of 3.1km2. There was obtained only one species, Apodemus speciosus. Tunnels of Mogera sp. were found commonly in the cultivated fields. It is said that Mustela sibirica is not found on this island.
    3) Aishima Island lies in the Japan Sea about 14 km off the northern coast of southwestern Honshu and has an area of 2.6km2. There were obtained Mus molossinus and Crocidura dsinezumi. Except for these two species, it was surposed that the wild land mammal inhabiting on Aishima Island was Mustela sibirica only.
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  • Toshio TERANISHI, Keiichiro TSUJI
    1981 Volume 8 Issue 6 Pages 211-212
    Published: December 25, 1981
    Released on J-STAGE: August 25, 2010
    JOURNAL FREE ACCESS
    Killed pups of Micromys minutus were left in their breeding nest under natural habitat. Their estimated age was 5 or 6 days. When discovered, the bodies were still bleeding and did not show cadaveric rigidity yet. Bites were located on the nose, neck, side and inguinal resions in all of them. Two received a severe injury on the head. From the examination of bites, it was inferred that the infanticide was done in a brief time by their mother.
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  • Keisuke NAKATA
    1981 Volume 8 Issue 6 Pages 213-214
    Published: December 25, 1981
    Released on J-STAGE: August 25, 2010
    JOURNAL FREE ACCESS
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  • Yoshio FURUYA, Akiko KANAO, Mikiko TAKEUCHI
    1981 Volume 8 Issue 6 Pages 215-225
    Published: December 25, 1981
    Released on J-STAGE: August 25, 2010
    JOURNAL FREE ACCESS
    It is well known that the geographical distribution of mammals is affected by vegetation. This report deals with the relationship between the width of the distribution of eight species of mammals, Macaca fuscata, Selenarctos thibetanus, Cervus nippon, Capricornis crispus, Sus scrofa, Vulpes vulpes, Meles meles and Nyctereutes procyonoides, in Kochi Prefecture and the kinds of vegetation existing in their habitats.
    And in addition, we make a comparison among the above species to examine the vegetation selectivity.
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  • Koichi KAJI
    1981 Volume 8 Issue 6 Pages 226-236
    Published: December 25, 1981
    Released on J-STAGE: August 25, 2010
    JOURNAL FREE ACCESS
    A study on the range use of sika deer was conducted in the Nemuroshibetsu district of eastern Hokkaido, Japan, from September, 1978 through November, 1979. The range varied according to the change in the amount of available plant food and the snow depth. During the snowless season the deer depended mainly on green forages, i. e., they fed on many species of forbs and grasses in the woods and on a river bank in summer, and on pasture herbages in fall. With the increase in snow depth in winter the feeding habits were changed to foraging the leaves of sasa bamboos (Sasa senanensis) or to browsing along with concentrating themselves in the wintering area of a river bank. The change in the food habits and the range use of the deer occurred parallel to the formation of“feeding groups”in the open pastures in fall and of“yard groups”in the wintering area in winter. It was assumed that the size and availability of the wintering area might be an important factor controlling the density of the deer in an area.
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  • Atsushi NAKATSU
    1981 Volume 8 Issue 6 Pages 237-241
    Published: December 25, 1981
    Released on J-STAGE: August 25, 2010
    JOURNAL FREE ACCESS
    Esterase bands in the vole were found to be highly polymorphic in natural populations of Hokkaido. Of the twenty-two bands observed, Es-3-Es-6 showed the geographical cline in their frequencies. The frequencies of them declined gradually from the southern region to the northern and eastern regions.
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