| Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2015: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2014: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2013: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Outline of Final Research Achievements |
In general, Daphnia reproduce parthenogenetically but switch to sexual reproduction for producing resting eggs that are capable of overwintering. If certain parthenogenetic individuals are competitively superior to others, their success results to reduce genetic diversity. However, it not yet clear how competitive persistence of daphnia populations are related with maintenance of the genetic diversities. This study showed that some of competitively inferior individuals are highly sensitive to environmental changes in initiating production of the resting or sexual eggs By producing these eggs before intensifying the competitive interactions, daphnia species maintained their genetic diversities.
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