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题名: Increasing zooplankton size diversity enhances the strength of top-down control on phytoplankton through diet niche partitioning
作者: Ye, Lin1, 2; Chang, Chun-Yi2; Garcia-Comas, Carmen2; Gong, Gwo-Ching3, 4; Hsieh, Chih-hao2, 5
通讯作者: Hsieh, CH (reprint author), Natl Taiwan Univ, Inst Oceanog, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan.
关键词: biodiversity-ecosystem functioning ; body size ; size spectrum ; taxa diversity ; trophic interactions
刊名: JOURNAL OF ANIMAL ECOLOGY
发表日期: 2013-09-01
DOI: 10.1111/1365-2656.12067
卷: 82, 期:5, 页:1052-1060
收录类别: SCI
文章类型: Article
部门归属: [Ye, Lin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China ; [Ye, Lin ; Chang, Chun-Yi ; Garcia-Comas, Carmen ; Hsieh, Chih-hao] Natl Taiwan Univ, Inst Oceanog, Taipei 10617, Taiwan ; [Gong, Gwo-Ching] Natl Taiwan Ocean Univ, Ctr Excellence Marine Bioenvironm & Biotechnol, Inst Marine Environm Chem & Ecol, Keelung 20224, Taiwan ; [Gong, Gwo-Ching] Natl Appl Res Labs, Taiwan Ocean Res Inst, Kaohsiung 852, Taiwan ; [Hsieh, Chih-hao] Natl Taiwan Univ, Inst Ecol & Evolutionary Biol, Taipei 10617, Taiwan
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Taiwan University; National Science Council of Taiwan
类目[WOS]: Ecology ; Zoology
研究领域[WOS]: Environmental Sciences & Ecology ; Zoology
摘要: 1. The biodiversity-ecosystem functioning debate is a central topic in ecology. Recently, there has been a growing interest in size diversity because body size is sensitive to environmental changes and is one of the fundamental characteristics of organisms linking many ecosystem properties. However, how size diversity affects ecosystem functioning is an important yet unclear issue. 2. To fill the gap, with large-scale field data from the East China Sea, we tested the novel hypothesis that increasing zooplankton size diversity enhances top-down control on phytoplankton (H1) and compared it with five conventional hypotheses explaining the top-down control: flatter zooplankton size spectrum enhances the strength of top-down control (H2); nutrient enrichment lessens the strength of top-down control (H3); increasing zooplankton taxonomic diversity enhances the strength of top-down control (H4); increasing fish predation decreases the strength of top-down control of zooplankton on phytoplankton through trophic cascade (H5); increasing temperature intensifies the strength of top-down control (H6). 3. The results of univariate analyses support the hypotheses based on zooplankton size diversity (H1), zooplankton size spectrum (H2), nutrient (H3) and zooplankton taxonomic diversity (H4), but not the hypotheses based on fish predation (H5) and temperature (H6). More in-depth analyses indicate that zooplankton size diversity is the most important factor in determining the strength of top-down control on phytoplankton in the East China Sea. 4. Our results suggest a new potential mechanism that increasing predator size diversity enhances the strength of top-down control on prey through diet niche partitioning. This mechanism can be explained by the optimal predator-prey body-mass ratio concept. Suppose each size group of zooplankton predators has its own optimal phytoplankton prey size, increasing size diversity of zooplankton would promote diet niche partitioning of predators and thus elevates the strength of top-down control.
英文摘要: 1. The biodiversity-ecosystem functioning debate is a central topic in ecology. Recently, there has been a growing interest in size diversity because body size is sensitive to environmental changes and is one of the fundamental characteristics of organisms linking many ecosystem properties. However, how size diversity affects ecosystem functioning is an important yet unclear issue.
关键词[WOS]: BODY-MASS CONSTRAINTS ; FOOD WEBS ; PELAGIC ECOSYSTEM ; CLIMATE-CHANGE ; PLANKTON ; PREDATOR ; BIODIVERSITY ; COMMUNITIES ; ECOLOGY ; BIOMASS
语种: 英语
WOS记录号: WOS:000323200600014
ISSN号: 0021-8790
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19548
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Natl Taiwan Univ, Inst Oceanog, Taipei 10617, Taiwan
3.Natl Taiwan Ocean Univ, Ctr Excellence Marine Bioenvironm & Biotechnol, Inst Marine Environm Chem & Ecol, Keelung 20224, Taiwan
4.Natl Appl Res Labs, Taiwan Ocean Res Inst, Kaohsiung 852, Taiwan
5.Natl Taiwan Univ, Inst Ecol & Evolutionary Biol, Taipei 10617, Taiwan

Recommended Citation:
Ye, Lin; Chang, Chun-Yi; Garcia-Comas, Carmen; Gong, Gwo-Ching; Hsieh, Chih-hao.Increasing zooplankton size diversity enhances the strength of top-down control on phytoplankton through diet niche partitioning,JOURNAL OF ANIMAL ECOLOGY,2013,82(5):1052-1060
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