中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 淡水生态学研究中心  > 期刊论文
题名: Disentangling the roles of spatial and environmental variables in shaping benthic algal assemblages in rivers of central and northern China
作者: Tang, Tao1; Wu, Naicheng1; Li, Fengqing1; Fu, Xiaocheng1; Cai, Qinghua1
通讯作者: Cai, QH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
关键词: Benthic algae ; Biogeography ; Biodiversity ; Moran's eigenvector maps ; Spatial patterns ; Variation partitioning
刊名: AQUATIC ECOLOGY
发表日期: 2013-12-01
DOI: 10.1007/s10452-013-9458-8
卷: 47, 期:4, 页:453-466
收录类别: SCI
文章类型: Article
部门归属: [Tang, Tao ; Wu, Naicheng ; Li, Fengqing ; Fu, Xiaocheng ; Cai, Qinghua] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Major Science and Technology Program for Water Pollution Control and Treatment [2012ZX07104-002, 2012ZX07501-002-07]; National Natural Science Foundation of China [30330140]
类目[WOS]: Ecology ; Limnology ; Marine & Freshwater Biology
研究领域[WOS]: Environmental Sciences & Ecology ; Marine & Freshwater Biology
摘要: Benthic algae were collected from central and northern Chinese rivers to test the hypothesis that geographic location has significant contributions in shaping algal assemblages. We used Moran's eigenvector maps (MEM) to model spatial components and variation partitioning to quantify the influences of spatial and environmental variables on regional patterns of algal richness and community composition, respectively. We found that variation in algal richness was attributed to MEM component 2, 8, and 9 and the quadratic term of N-NO3. Regarding abundance data, latitude, longitude, and MEM component 1, 2, and 7 were important spatial variables. Although P-PO4, pH, and annual mean temperature were significant environmental variables influencing algal community composition, they were all spatially structured. Among the total explained variance in both algal metrics, spatial proportions were higher than that of environmental variables. We also found that abundant species of Achnanthidium minutissimum, Cocconeis placentula, Cymbella delicatula, Cymbella affinis, Cymbella turgidula, and Synedra ulna displayed clear spatially related patterns. In conclusion, the contributions of spatial and environmental variables to regional variation of algal assemblages are scale-dependent. As for our study scale (similar to 1,000 km), spatial control may be more important. Since spatial effects could obscure local environmental impacts on algal communities, appropriate study scale and statistical methods should be taken into account in algal bioassessment. We recommend inclusion of both algal richness and community composition in study of algal biogeography, due to their different relationships with spatial and environmental variables.
英文摘要: Benthic algae were collected from central and northern Chinese rivers to test the hypothesis that geographic location has significant contributions in shaping algal assemblages. We used Moran's eigenvector maps (MEM) to model spatial components and variation partitioning to quantify the influences of spatial and environmental variables on regional patterns of algal richness and community composition, respectively. We found that variation in algal richness was attributed to MEM component 2, 8, and 9 and the quadratic term of N-NO3. Regarding abundance data, latitude, longitude, and MEM component 1, 2, and 7 were important spatial variables. Although P-PO4, pH, and annual mean temperature were significant environmental variables influencing algal community composition, they were all spatially structured. Among the total explained variance in both algal metrics, spatial proportions were higher than that of environmental variables. We also found that abundant species of Achnanthidium minutissimum, Cocconeis placentula, Cymbella delicatula, Cymbella affinis, Cymbella turgidula, and Synedra ulna displayed clear spatially related patterns. In conclusion, the contributions of spatial and environmental variables to regional variation of algal assemblages are scale-dependent. As for our study scale (similar to 1,000 km), spatial control may be more important. Since spatial effects could obscure local environmental impacts on algal communities, appropriate study scale and statistical methods should be taken into account in algal bioassessment. We recommend inclusion of both algal richness and community composition in study of algal biogeography, due to their different relationships with spatial and environmental variables.
关键词[WOS]: FRESH-WATER REALM ; COMMUNITY STRUCTURE ; DIATOM COMMUNITIES ; ECOLOGICAL VARIATION ; NEIGHBOR MATRICES ; SPECIES RICHNESS ; DIVERSITY ; DISPERSAL ; PATTERNS ; STREAMS
语种: 英语
WOS记录号: WOS:000327070200008
ISSN号: 1386-2588
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19761
Appears in Collections:淡水生态学研究中心_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Disentangling the roles of spatial and environmental variables in shaping benthic algal assemblages in rivers of central and northern China.pdf(330KB)----开放获取View Download

作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China

Recommended Citation:
Tang, Tao; Wu, Naicheng; Li, Fengqing; Fu, Xiaocheng; Cai, Qinghua.Disentangling the roles of spatial and environmental variables in shaping benthic algal assemblages in rivers of central and northern China,AQUATIC ECOLOGY,2013,47(4):453-466
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Tang, Tao]'s Articles
[Wu, Naicheng]'s Articles
[Li, Fengqing]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Tang, Tao]‘s Articles
[Wu, Naicheng]‘s Articles
[Li, Fengqing]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Disentangling the roles of spatial and environmental variables in shaping benthic algal assemblages in rivers of central and northern China.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2016  中国科学院水生生物研究所 - Feedback
Powered by CSpace