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DOI	10.1016/j.watres.2017.07.078
	Responses of trophic structure and zooplankton community to salinity and temperature in Tibetan lakes: Implication for the effect of climate warming
	Lin, Qiuqi; Xu, Lei; Hou, Juzhi; Liu, Zhengwen; Jeppesen, Erik; Han, Bo-Ping
通讯作者	Han, BP (通讯作者)
发表日期	2017
ISSN	0043-1354
起始页码	618
结束页码	629
卷号	124
英文摘要	Warming has pronounced effects on lake ecosystems, either directly by increased temperatures or indirectly by a change in salinity. We investigated the current status of zooplankton communities and trophic structure in 45 Tibetan lakes along a 2300 m altitude and a 76 salinity gradient. Freshwater to hyposaline lakes mainly had three trophic levels: phytoplankton, small zooplankton and fish/Gammarus, while mesosaline to hypersaline lakes only had two: phytoplankton and large zooplankton. Zooplankton species richness declined significantly with salinity, but did not relate with temperature. Furthermore, the decline in species richness with salinity in lakes with two trophic levels was much less abrupt than in lakes with three trophic levels. The structural variation of the zooplankton community depended on the length of the food chain, and was significantly explained by salinity as the critical environmental variable. The zooplankton community shifted from dominance of copepods and small cladoceran species in the lakes with low salinity and three trophic levels to large saline filter-feeding phyllopod species in those lakes with high salinity and two trophic levels. The zooplankton to phytoplankton biomass ratio was positively related with temperature in two-trophic-level systems and vice versa in three-trophic-level systems. As the Tibetan Plateau is warming about three times faster than the global average, our results imply that warming could have a considerable impact on the structure and function of Tibetan lake ecosystems, either via indirect effects of salinization/desalinization on species richness, composition and trophic structure or through direct effects of water temperature on trophic interactions. (C) 2017 Elsevier Ltd. All rights reserved.
关键词	FRESH-WATER LAKES SPECIES RICHNESS TOP-DOWN BRACKISH SHALLOW STATE CONSEQUENCES DETERMINANT PLATEAU ALTERS
英文关键词	Plateau; Salinization; Species richness; Food chain; Trophic cascade
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
WOS类目	Engineering, Environmental ; Environmental Sciences ; Water Resources
WOS记录号	WOS:000412251500062
来源期刊	WATER RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258964
推荐引用方式 GB/T 7714	Lin, Qiuqi,Xu, Lei,Hou, Juzhi,et al. Responses of trophic structure and zooplankton community to salinity and temperature in Tibetan lakes: Implication for the effect of climate warming[J]. 中国科学院青藏高原研究所,2017,124.
APA	Lin, Qiuqi,Xu, Lei,Hou, Juzhi,Liu, Zhengwen,Jeppesen, Erik,&Han, Bo-Ping.(2017).Responses of trophic structure and zooplankton community to salinity and temperature in Tibetan lakes: Implication for the effect of climate warming.WATER RESEARCH,124.
MLA	Lin, Qiuqi,et al."Responses of trophic structure and zooplankton community to salinity and temperature in Tibetan lakes: Implication for the effect of climate warming".WATER RESEARCH 124(2017).