Mitigation of stoichiometry effects on biological interactions by biodiversity.

本研究进行实验，以澄清化学计量的影响，假定的环境变化对猎物（藻类）消费者（水蚤）的相互作用是改变取决于遗传和物种身份的消费者。理论和实验分析表明，消费者的最佳喂养率的变化不仅取决于丰富的，但也藻类食物的化学计量，消费者的阈值食物水平的变化，甚至在物种内根据基因型，和竞争相互作用的结果变化取决于消费者的物种身份。这些结果支持了一个想法，即化学计量的影响生态系统过程中不同的社区与不同的遗传和物种的身份。

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.