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105/04/26 14:00 臺灣大學海洋研究所三木健副教授 演講

演講公告
張貼人:網站管理員公告日期:2016-04-19
 
演 講 公 告
 

講題:The roles of bacterial diversity in the maintenance of ecosystems functions: mathematical modeling and bioinformatics approaches

 

主講人:三木健 副教授
 
    臺灣大學海洋研究所

 
時間:04月26日(星期二)下午2點
 

地點:中央大學科學一館S-325教室
 

摘要:
 
  Traditional ecosystem models have parametarized microbes as a single black box that has “complete” functionality even with environmental changes. However, recent studies demonstrate the importance of biodiversity and community composition of microbes in determining their biogeochemical functions. In particular, we focus on the roles of interactions between microbes within microbial food web in maintaining high processes rates and its stability against environmental changes. I’m going to talk about a couple of models that focus on bacterial diversity and POC sinking flux in the oceans.
  Recently, we also developed a new bioinformatics approach, linking whole genomic information of diverse microbes into complexity and multidimensionality of ecosystem functioning, can give an index to assess functional redundancy of ecosystem. Microcosm experiment using environmental microbes confirms the effectiveness of the index and supports the predicted low functional redundancy of microbial ecosystem, demonstrating that initial species and gene loss (e.g. 5%) causes a detectable reduction of multiple ecosystem functions. The proposed index serves as a scientific basis to determine an acceptable level of species loss for sustainable use of ecosystem services.

 
最後修改時間:2016-04-21 AM 9:42

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