The ecosystem is extremely large and complex, where a number of diverse organisms, and various non-living components, interact with each other to generate the complicated, non-linear dynamics at multiple biological levels. I would like to establish a new discipline in ecology to disentangle the ecological complexity, based sophisticated mathematical or statistical modeling tools, analyses of big field data (such as eDNA, acoustic, visual monitoring data) and lab experiments using artificial ecosystems. Developing a theoretical framework for forecasting, controlling and designing ecological systems is also the on-going hot topic in my lab.