| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
We investigated the geographic distribution of Collembola species feeding on insecticidal Strobilurus ohshimae sporocarps in 18 native Cryptomeria japonica forests in Japan. The presence, species, and mode of feeding of Collembola preferring S. ohshimae varied with the site. In Akita, Yamagata, and Niigata, Ceratophysella sp. 1 fed mainly on the gills of S. ohshimae. In Yamanashi, Shizuoka, Gifu, Kyoto, Wakayama, Tottori, Oki Is., Shimane, and Kochi, Ceratophysella pilosa or closely related taxa preferred S. ohshimae and fed mainly on the interior parts of caps. In Miyagi, Aomori, Toyama, Sad Is., and Yakushima Is., no Ceratophysella Collembola showed preference for S. ohshimae. These results suggest that the strength and mode of impact of Collembola grazing on S. ohshimae varied geographically.
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