典型文献
Distinct community assembly processes underlie significant spatiotemporal dynamics of abundant and rare bacterioplankton in the Yangtze River
文献摘要:
The rare microbial biosphere provides broad ecological services and resilience to various ecosystems.Nevertheless,the biogeographical patterns and assembly processes of rare bacterioplankton communities in large rivers remain uncertain.In this study,we investigated the biogeography and community assembly processes of abundant and rare bacterioplankton taxa in the Yangtze River(China)covering a distance of 4300 km.The results revealed similar spatiotemporal patterns of abundant taxa(AT)and rare taxa(RT)at both taxonomic and phylogenetic levels,and analysis of similarities revealed that RT was significantly influenced by season and landform than AT.Furthermore,RT correlated with more environmental factors than AT,whereas environmental and spatial factors explained a lower proportion of community shifts in RT than in AT.The steeper distance-decay slopes in AT indicated higher spatial turnover rates of abundant subcommunities than rare subcommunities.The null model revealed that both AT and RT were mainly governed by stochastic processes.However,dispersal limitation primarily governed the AT,whereas the undominated process accounted for a higher fraction of stochastic processes in RT.River flow and suspended solids mediated the balance between the stochastic and deterministic processes in RT.The spatiotemporal dynamics and assembly processes of total taxa were more similar as AT than RT.This study provides new insights into both significant spatiotemporal dynamics and inconsistent assembly processes of AT and RT in large rivers.
文献关键词:
中图分类号:
作者姓名:
Malan Yi;Yao Fang;Guoping Hu;Shufeng Liu;Jinren Ni;Tang Liu
作者机构:
College of Environmental Sciences and Engineering,Peking University,Key Laboratory of Water and Sediment Sciences(Ministry of Education),Beijing 100871,China;Fluid Science and Resources Division,Department of Chemical Engineering,The University of Western Australia,Crawley,WA 6009,Australia;College of Chemistry and Environmental Engineering,Shenzhen University,Shenzhen 518060,China;State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems,Peking University,Beijing 100871,China
文献出处:
引用格式:
[1]Malan Yi;Yao Fang;Guoping Hu;Shufeng Liu;Jinren Ni;Tang Liu-.Distinct community assembly processes underlie significant spatiotemporal dynamics of abundant and rare bacterioplankton in the Yangtze River)[J].环境科学与工程前沿,2022(06):145-158
A类:
subcommunities,undominated
B类:
Distinct,community,assembly,processes,underlie,spatiotemporal,dynamics,abundant,rare,bacterioplankton,Yangtze,River,microbial,biosphere,provides,broad,ecological,services,resilience,various,ecosystems,Nevertheless,biogeographical,patterns,large,rivers,remain,uncertain,In,this,study,investigated,biogeography,taxa,China,covering,distance,results,revealed,AT,both,taxonomic,phylogenetic,levels,analysis,similarities,that,was,significantly,influenced,by,season,landform,than,Furthermore,correlated,environmental,factors,whereas,spatial,explained,lower,proportion,shifts,steeper,decay,slopes,indicated,higher,turnover,rates,null,model,were,mainly,governed,stochastic,However,dispersal,limitation,primarily,accounted,fraction,flow,suspended,solids,mediated,balance,between,deterministic,total,This,new,insights,into,inconsistent
AB值:
0.482616
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