https://scholars.lib.ntu.edu.tw/handle/123456789/402305
標題: | Predator and prey biodiversity relationship and its consequences on marine ecosystem functioning-Iinterplay between nanoflagellates and bacterioplankton | 作者: | CHIH-HAO HSIEH | 公開日期: | 四月-2018 | 來源出版物: | The ISME Journal | 摘要: | The importance of biodiversity effects on ecosystem functioning across trophic levels, especially via predatory-prey interactions, is receiving increased recognition. However, this topic has rarely been explored for marine microbes, even though microbial biodiversity contributes significantly to marine ecosystem function and energy flows. Here we examined diversity and biomass of bacteria (prey) and nanoflagellates (predators), as well as their effects on trophic transfer efficiency in the East China Sea. Specifically, we investigated: (i) predator diversity effects on prey biomass and trophic transfer efficiency (using the biomass ratio of predator/prey as a proxy), (ii) prey diversity effects on predator biomass and trophic transfer efficiency, and (iii) the relationship between predator and prey diversity. We found higher prey diversity enhanced both diversity and biomass of predators, as well as trophic transfer efficiency, which may arise from more balanced diet and/or enhanced niche complementarity owing to higher prey diversity. By contrast, no clear effect was detected for predator diversity on prey biomass and transfer efficiency. Notably, we found prey diversity effects on predator-prey interactions; whereas, we found no significant diversity effect on biomass within the same trophic level. Our findings highlight the importance of considering multi-trophic biodiversity effects on ecosystem functioning in natural ecosystems. © 2018 International Society for Microbial Ecology. |
URI: | https://doi.org/10.1038/s41396-018-0111-3 http://scholars.lib.ntu.edu.tw/handle/123456789/402305 |
DOI: | 10.1038/s41396-018-0111-3 | SDG/關鍵字: | bacterioplankton; bacterium; biodiversity; biomass; complementarity; ecosystem function; flagellate; marine ecosystem; predator-prey interaction; trophic interaction; trophic level; East China Sea; Pacific Ocean; animal; aquatic species; bacterium; biodiversity; biomass; China; ecosystem; food chain; microbiology; normal distribution; physiology; plankton; predation; salinity; temperature; Animals; Aquatic Organisms; Bacteria; Biodiversity; Biomass; China; Ecosystem; Food Chain; Normal Distribution; Plankton; Predatory Behavior; Salinity; Temperature; Water Microbiology |
顯示於: | 海洋研究所 |
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