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题名: Temporal changes in the taxonomic and functional diversity of fish communities in shallow Chinese lakes: the effects of river-lake connections and aquaculture
作者: Cheng, Lin1, 2, 3; Blanchet, Simon3, 4; Loot, Geraldine3; Villeger, Sebastien3; Zhang, Tanglin2; Lek, Sovan3; Lek-Ang, Sithan3; Li, Zhongjie2
通讯作者: Cheng, L (reprint author), 2-2-2802 Hongyuan Int Residence,129 Xudong Rd, Wuhan, Hubei, Peoples R China.
关键词: biodiversity loss ; functional richness ; biotic homogenization ; Yangtze River basin ; lakes
刊名: AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
发表日期: 2014-02-01
DOI: 10.1002/aqc.2418
卷: 24, 期:1, 页:23-34
收录类别: SCI
文章类型: Article
部门归属: [Cheng, Lin] WWF Beijing Off, Beijing, Peoples R China; [Cheng, Lin; Zhang, Tanglin; Li, Zhongjie] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Peoples R China; [Cheng, Lin; Blanchet, Simon; Loot, Geraldine; Villeger, Sebastien; Lek, Sovan; Lek-Ang, Sithan] Univ Toulouse 3, CNRS, UMR EDB 5174, F-31062 Toulouse, France; [Blanchet, Simon] CNRS Moulis, Stn Ecol Expt, Moulis, France
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
资助者: CAS-CNRS programme; National Science and Technology Supporting Program of China, R and D project of the Ministry of Agriculture of China [2012BAD25B08]
类目[WOS]: Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
研究领域[WOS]: Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
摘要: 1. Habitat modification by humans has severe impacts on the biotic and abiotic components of freshwater ecosystems. In China, shallow lakes in the Yangtze River basin are facing major habitat modification owing to the loss of their natural connections with rivers and the development of aquaculture. 2. In this study, temporal data (ranging from 1970 to 2010) from a set of lakes (n=8) were used to quantify the abiotic and biotic consequences (i.e. taxonomic and functional diversity of fish communities) of such human activities. There were significant abiotic changes that mainly occurred after the 1990s. Specifically, water transparency decreased and the total nitrogen content of the lakes increased considerably. 3. A trend (although not significant) was detected towards a decrease in fish species richness over the period studied. The taxonomic dissimilarity (i.e. beta-diversity) among fish communities decreased significantly over the years, indicating a strong homogenization of the fauna across the lakes. 4. In addition, it was found that fish functional diversity has decreased in most lakes since the 1970s. In particular most migratory fish species with long life-spans and large body size disappeared from the lakes, hence contributing substantially to the observed decrease in functional diversity. 5. Based on the findings, it is argued that both the abiotic and biotic integrity of the lakes were seriously affected after the lakes lost their connections to the rivers. It would therefore be helpful to reconnect the lakes to rivers with wise sluice-gate management, and regulate fishery activities in those lakes to restore fish diversity. Copyright (c) 2013 John Wiley & Sons, Ltd.
英文摘要: 1. Habitat modification by humans has severe impacts on the biotic and abiotic components of freshwater ecosystems. In China, shallow lakes in the Yangtze River basin are facing major habitat modification owing to the loss of their natural connections with rivers and the development of aquaculture.
关键词[WOS]: YANGTZE-RIVER ; BIOTIC HOMOGENIZATION ; MIDDLE REACH ; FLOOD PLAINS ; BIODIVERSITY ; CONSERVATION ; THREATS ; FRAGMENTATION ; ECOSYSTEMS ; CHALLENGES
语种: 英语
WOS记录号: WOS:000330802700004
ISSN号: 1052-7613
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20025
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.WWF Beijing Off, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Peoples R China
3.Univ Toulouse 3, CNRS, UMR EDB 5174, F-31062 Toulouse, France
4.CNRS Moulis, Stn Ecol Expt, Moulis, France
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