Water quality determines protist taxonomic and functional group composition in a high-altitude wetland of international importance

doi:10.1016/j.scitotenv.2023.163308

	Water quality determines protist taxonomic and functional group composition in a high-altitude wetland of international importance
	An, Ruizhi 1,2; Liu, Yang 1,2; Pan, Chengmei 1,2; Da, Zhen 1,2; Zhang, Peng 1,2; Qiao, Nanqian 1,2; Zhao, Feng 3,4; Ba, Sang 1,2
	2023-07-01
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	880 页码:12
通讯作者	Zhao, Feng([email protected]) ; Ba, Sang([email protected])
摘要	Alpine wetland is a natural laboratory for studying the Earth's third polar ecosphere. Protist communities are key components of wetland ecosystems which are extremely vulnerable to environmental change. It is of great importance to study the protist community in relation to environment, which might be the key to understand the ecosystem of the alpine wetlands under global change. In this study, we investigated the composition of protist communities across the Mitika Wetland, a unique alpine wetland hosting tremendous endemic diversity. Using 18S rRNA gene highthroughput sequencing, we evaluated how protist taxonomic and functional group composition is structured by seasonal climate and environmental variation. We found a high relative abundance of Ochrophyta, Ciliophora, and Cryptophyta, each of which showcased a unique spatial pattern in the wet and dry seasons. The proportion of consumers, parasites and phototrophs groups were stable among the functional zones and also between the seasons, with consumers dominating communities in terms of richness, while phototrophic taxa dominated in terms of relative abundance. Protist and each functional group were rather regulated by deterministic than stochastic processes, with water quality having a strong control on communities. Salinity and pH were the most important environmental factors at shaping protistan community. The protist co-occurrence network dominated by the positive edge indicating the communities resisted extreme environmental conditions through close cooperation, and more consumers were determined as the keystones in wet season and more phototrophic taxa in dry season. Our results provided the baseline of the protist taxonomic and functional group composition in the highest wetland, and highlighted environmental selections drive protist distribution, implying the alpine wetland ecosystem are sensitive to climate changes and human activities.
关键词	Alpine wetland Protists Functional group Environmental selection Co-occurrence network
DOI	10.1016/j.scitotenv.2023.163308
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[32070418]; Youth Innova-tion Promotion Association CAS[2022206]; Special Funds for Local Colleges and Universities[2021]
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000984707100001
出版者	ELSEVIER
WOS关键词	COMMUNITIES ; PATTERNS ; RIVER
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182991
专题	海洋生物分类与系统演化实验室
通讯作者	Zhao, Feng; Ba, Sang
作者单位	1.Tibet Univ, Sch Ecol & Environm, Lab Wetland & Catchments Ecol Tibetan Plateau, Lhasa 850000, Peoples R China 2.Tibet Univ, Ctr Carbon Neutral Earths Pole 3, Lhasa 850000, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Lab Marine Organism Taxon & Phylogeny, Qingdao Key Lab Marine Biodivers & Conservat, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	An, Ruizhi,Liu, Yang,Pan, Chengmei,et al. Water quality determines protist taxonomic and functional group composition in a high-altitude wetland of international importance[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,880:12.
APA	An, Ruizhi.,Liu, Yang.,Pan, Chengmei.,Da, Zhen.,Zhang, Peng.,...&Ba, Sang.(2023).Water quality determines protist taxonomic and functional group composition in a high-altitude wetland of international importance.SCIENCE OF THE TOTAL ENVIRONMENT,880,12.
MLA	An, Ruizhi,et al."Water quality determines protist taxonomic and functional group composition in a high-altitude wetland of international importance".SCIENCE OF THE TOTAL ENVIRONMENT 880(2023):12.