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题名: Predator and prey biodiversity relationship and its consequences on marine ecosystem functioning—interplay between nanoflagellates and bacterioplankton
作者: Jinny Wu Yang
Wenxue Wu
Chih-Ching Chung
Kuo-Ping Chiang
Gwo-Ching Gong
Chih-hao Hsieh
贡献者: 國立臺灣海洋大學:海洋環境與生態研究所
日期: 2018-04
上传时间: 2018-09-25T08:20:54Z
出版者: The ISME journal ( International Society for Micorbial Ecology)
摘要: Abstract: 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.
關聯: 12(6) pp.1532–1542
显示于类别:[海洋環境與生態研究所] 期刊論文


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