2012-11-012024-05-16https://scholars.lib.ntu.edu.tw/handle/123456789/669546Abstract: Synergistic effects of anthropogenic impacts and environmental changes are pressing concerns in ecosystem managements. More importantly, ecosystem responses to these impacts exhibit multiple time scales variation. As such, traditional correlation or regression analyses in time domain cannot efficiently quantify those impacts. To overcome this challenge, we introduce innovative time series analysis methods to analyze multiscale ecological responses of biological systems to external forcing, using plankton communities in Lake Biwa and the Western English Channel as case studies. Specifically, this project seeks to i) develop and apply adequate methodologies facing the challenge of temporally scale-dependent processes in plankton communities, ii) assess the nonlinearity and nonstationarity in plankton communities based on long-term time series data, and iii) understand how environmental factors, both climatic and anthropogenic, affect species abundance and diversity in plankton community. The results gained from this search will help provide operational recommendations for ecological monitoring and assessment for a wide range of aquatic ecosystems.freshwater ecosystemplankton dynamicsmultiscale analysisscale dependenceenvironmental changenonlinearitynonstationarity