| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Outline of Final Research Achievements |
I developed the distribution database of Japanese terrestrial isopods based on about 16,000 specimens. Species distribution model (SDM) for an exotic isopod Armadillidium vulgare was constructed using the distribution database and bioclimatic data. The SDM showed that the distribution area of A. vulgare in Japan was affected by mean temperature of coldest month. Molecular analysis found five genetic types in A. vulgare in Japan, suggesting the exotic species was introduced into Japan from five sites. Isopod fauna were investigated in four large Islands of the Ryukyu Archipelago (Amamioshima Island, Okinawajima Island, Miyakojima Island, Ishigakijima Island), and community structure was studied at a grassland in Fukuoka prefecture for two years. The both studies have been found no competitive exclusion of native species by exotic species.
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