| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2012: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2011: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2010: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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| Research Abstract |
This study was performed to clarify experimentally how stoichiometric impacts by putative environmental changes on prey (algae) - consumer (Daphnia) interactions are altered depending on genetic and species identities of consumers. Theoretical and experimental analyses showed that optimal feeding rates of the consumers change depending not only on abundance but also stoichiometry of algal food, that threshold food levels of the consumers change even within species according to the genotypes, and that outcomes of competitive interactions change depending on species identities of the consumers. These results support an idea that stoichiometric impacts on ecosystem processes are different among communities with different genetic and species identities.
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