干旱区生态环境知识资源中心(Arid): Concordance in biological condition and biodiversity between diatom and macroinvertebrate assemblages in Chinese arid-zone streams

Arid

DOI	10.1007/s10750-018-3836-0
	Concordance in biological condition and biodiversity between diatom and macroinvertebrate assemblages in Chinese arid-zone streams
	Chen, Kai 1; Sun, Dandan 2; Rajper, Abdul R.2; Mulatibieke, Mahati 3; Hughes, Robert M.4,5; Pan, Yangdong 6; Tayibazaer, Aletai 7; Chen, Qiuwen 1; Wang, Beixin 2
通讯作者	Chen, Qiuwen ; Wang, Beixin
来源期刊	HYDROBIOLOGIA
ISSN	0018-8158
EISSN	1573-5117
出版年	2019
卷号	829 期号:1 页码:245-263
英文摘要	Understanding the concordance between aquatic assemblages in ecological assessments and their responses to human-induced disturbances are fundamental steps toward achieving sustainable stream and catchment management. Using diatom, macroinvertebrate, and environmental data collected from northwest Chinese arid-land streams, we tested the concordance between the two assemblages in (1) the assessment results using multimetric indices (MMIs), (2) the stressors affecting the MMIs and beta-diversity, and (3) the response trajectories of MMI and beta-diversity to disturbances. Random Forest analyses revealed that diatom and macroinvertebrate metrics responded most sensitively to climatic and geomorphic variables, respectively. Diatom MMI scores had greater precision and responsiveness than macroinvertebrate MMI scores. Diatom MMI scores were negatively related to gradients in observed-expected conductivity, chemical oxygen demand, and vegetated riparian zone width. Macroinvertebrate MMI scores responded strongly to observed-expected mean substrate composition, conductivity, and phosphate. Diatom beta-diversity decreased, as nitrate, channel alternation, and phosphate increased beyond expected natural background levels. Macroinvertebrate beta-diversity was the lowest when both nitrite and % cobble neared their natural background expectations. Our results indicate that protecting aquatic systems from anthropogenic pressures depends not only on revealing causes of impairment, but also on anticipating and understanding the responses to various stressors of multiple stream biotic assemblages.
英文关键词	MMI IBI Diversity Natural variability Stressors Random forest
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000456178700018
WOS关键词	PACIFIC-NORTHWEST RIVERS ; FISH-BASED INDEX ; BETA-DIVERSITY ; BIOTIC INTEGRITY ; SPATIAL SCALE ; WATER-QUALITY ; FRESH-WATER ; ECOLOGICAL ASSESSMENT ; COMMUNITY STRUCTURE ; RELATIVE INFLUENCE
WOS类目	Marine & Freshwater Biology
WOS研究方向	Marine & Freshwater Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216158
作者单位	1.Nanjing Hydraul Res Inst, Ctr Ecoenvironm Sci Res, Nanjing 210024, Jiangsu, Peoples R China; 2.Nanjing Agr Univ, Dept Entomol, Lab Aquat Insects & Stream Ecol, Nanjing 210095, Jiangsu, Peoples R China; 3.Hydrol & Water Resources Survey Bur Altay, Altay 836599, Xinjiang Autono, Peoples R China; 4.Oregon State Univ, Amnis Opes Inst, Corvallis, OR 97333 USA; 5.Oregon State Univ, Dept Fisheries & Wildlife, Corvallis, OR 97333 USA; 6.Portland State Univ, Environm Sci & Management, Portland, OR 97207 USA; 7.Altay Mt Two River Source Reserve, Altay 836599, Xinjiang Autono, Peoples R China
推荐引用方式 GB/T 7714	Chen, Kai,Sun, Dandan,Rajper, Abdul R.,et al. Concordance in biological condition and biodiversity between diatom and macroinvertebrate assemblages in Chinese arid-zone streams[J],2019,829(1):245-263.
APA	Chen, Kai.,Sun, Dandan.,Rajper, Abdul R..,Mulatibieke, Mahati.,Hughes, Robert M..,...&Wang, Beixin.(2019).Concordance in biological condition and biodiversity between diatom and macroinvertebrate assemblages in Chinese arid-zone streams.HYDROBIOLOGIA,829(1),245-263.
MLA	Chen, Kai,et al."Concordance in biological condition and biodiversity between diatom and macroinvertebrate assemblages in Chinese arid-zone streams".HYDROBIOLOGIA 829.1(2019):245-263.