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Seasonal shifts in the assembly dynamics of benthic macroinvertebrate and diatom communities in a subtropical river
Wang, Jun1; Hu, Jiancheng1,2; Tang, Tao1; Heino, Jani3; Jiang, Xiaoming1; Li, Zhengfei1; Xie, Zhicai1
2020
Source PublicationECOLOGY AND EVOLUTION
ISSN2045-7758
Volume10Issue:2Pages:692-704
Abstract

Identifying seasonal shifts in community assembly for multiple biological groups is important to help enhance our understanding of their ecological dynamics. However, such knowledge on lotic assemblages is still limited. In this study, we used biological traits and functional diversity indices in association with null model analyses to detect seasonal shifts in the community assembly mechanisms of lotic macroinvertebrates and diatoms in an unregulated subtropical river in China. We found that functional composition and functional diversity (FRic, FEve, FDis, MNN, and SDNN) showed seasonal variation for macroinvertebrate and diatom assemblages. Null models suggested that environmental filtering, competitive exclusion, and neutral process were all important community assembly mechanisms for both biological groups. However, environmental filtering had a stronger effect on spring macroinvertebrate assemblages than autumn assemblages, but the effect on diatom assemblages was the same in both seasons. Moreover, macroinvertebrate and diatom assemblages were shaped by different environmental factors. Macroinvertebrates were filtered mainly by substrate types, velocity, and CODMn, while diatoms were mainly shaped by altitude, substrate types, and water quality. Therefore, our study showed (a) that different biological assemblages in a river system presented similarities and differences in community assembly mechanisms, (b) that multiple processes play important roles in maintaining benthic community structure, and (c) that these patterns and underlying mechanisms are seasonally variable. Thus, we highlight the importance of exploring the community assembly mechanisms of multiple biological groups, especially in different seasons, as this is crucial to improve the understanding of river community changes and their responses to environmental degradation.

KeywordChishui River functional diversity functional traits lotic assemblages null model
DOI10.1002/ece3.5904
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Evolutionary Biology
WOS SubjectEcology ; Evolutionary Biology
WOS IDWOS:000505307000001
WOS KeywordFUNCTIONAL DIVERSITY INDEXES ; BODY-SIZE ; METACOMMUNITY STRUCTURE ; MULTIVARIATE-ANALYSIS ; BIOLOGICAL TRAITS ; CURRENT VELOCITY ; AQUATIC INSECTS ; TELL US ; STREAM ; MECHANISMS
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/35532
Collection水生生物多样性与资源保护研究中心_期刊论文
Corresponding AuthorTang, Tao; Xie, Zhicai
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Finnish Environm Inst, Freshwater Ctr, Oulu, Finland
Recommended Citation
GB/T 7714
Wang, Jun,Hu, Jiancheng,Tang, Tao,et al. Seasonal shifts in the assembly dynamics of benthic macroinvertebrate and diatom communities in a subtropical river[J]. ECOLOGY AND EVOLUTION,2020,10(2):692-704.
APA Wang, Jun.,Hu, Jiancheng.,Tang, Tao.,Heino, Jani.,Jiang, Xiaoming.,...&Xie, Zhicai.(2020).Seasonal shifts in the assembly dynamics of benthic macroinvertebrate and diatom communities in a subtropical river.ECOLOGY AND EVOLUTION,10(2),692-704.
MLA Wang, Jun,et al."Seasonal shifts in the assembly dynamics of benthic macroinvertebrate and diatom communities in a subtropical river".ECOLOGY AND EVOLUTION 10.2(2020):692-704.
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