The Shift in the Altitudinal Distributions of Dymecodon pilirostris and Urotrichus talpoides in the Mt. Bandai Area, Fukushima Prefecture, Japan.
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Accession number;01A0665595
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| Title;The Shift in the Altitudinal Distributions of Dymecodon pilirostris and Urotrichus talpoides in the Mt. Bandai Area, Fukushima Prefecture, Japan. |
| Author;
KIMURA YOSHIYUKI
(Fukushimadai Kyoiku Seibutsugakukyoshitsu)
KANEKO YUKIBUMI
(Fukushimadai Kyoiku Seibutsugakukyoshitsu)
KONNO MIHO
(Fukushimadai Kyoiku Seibutsugakukyoshitsu)
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Journal Title;Mammalian Science
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Journal Code:Y0375A
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ISSN:0385-437X
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VOL.;NO.82;PAGE.71-82(2001)
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| Figure&Table&Reference;FIG.3, TBL.2, REF.24 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;The altitudinal distributions of Dymecodon pilirostris and Urotrichus talpoides were studied at 24 stations on the northern slope of Mt. Bandai, from May to November 1998, by snap trapping. Captures of D. pilirostris occurred at 3 stations above 1350m in altitude. On the contrary, those of U. talpoides occurred at 14 stations below 1350m. Comparing the present results with the ones collected in 1979-80(Kimura et al., 1981), the distribution area of U. talpoides seems to have expanded, whereas that of D. pilirostris seems to have been reduced. There are two possibilities to explain the altitudinal distribution of the two species. If the soil condition has become better, U. talpoides occupies the habitat with better soil, and the populations of D. pilirostris have retreated to habitats where U. talpoides have not been able to live. If the soil condition has not been improved so much, some isolated populations of D. pilirostris have been displaced by the surrounding population of U. talpoides, which is dominant to D. pilirostris. Anyway, the shift of the altitudinal distribution during the 18 years suggests to be a habitat segregation between D. pilirostris and U. talpoides. (author abst.) |
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