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Light, but Not Nutrients, Drives Seasonal Congruence of Taxonomic and Functional Diversity of Phytoplankton in a Eutrophic Highland Lake in China
Wang, Huan1; Zhao, Dandan1,2; Chen, Liang1,3; Giesy, John P.4,5,6; Zhang, Weizhen1,7; Yuan, Changbo1; Ni, Leyi1; Shen, Hong1; Xie, Ping1,8

Information on temporal dynamics of phytoplankton communities and their responses to environmental factors can provide insights into mechanisms driving succession of phytoplankton communities that is useful in programs to manage and or remediate undesirable assemblages. Populations of phytoplankton can be controlled by bottom-up factors such as nutrients and temperature or top-down such as predation by zooplankton. Traditionally, taxonomic diversity based on morphologies has been the measure used for analysis of responses to environmental factors. Recently, according to functional groupings, including functional groups (FG), morpho-FG (MFG), and morphology-based FG (MBFG), functional diversity has been used to represent functional aspects of phytoplankton communities. However, to what extent these taxonomic and functional groupings are congruent at seasonal time-scales and the main environmental factors, which drive succession, have remained less studied. Here, we analyzed absolute and relative proportions of a phytoplankton community during a 3-year period in Lake Erhai, a eutrophic highland lake in China. Alpha diversity and beta diversity, as measured by Shannon-Wiener and Bray-Curtis indices of taxonomic grouping and three functional groupings (FG, MFG, and MBFG) were applied to investigate environmental factors determining diversity. Significant, positive relationships were observed between taxonomic diversity and functional diversity that were strongly linked through seasons. In order to exclude the influence of dominant species' tolerance to extreme environments, the dominant species were excluded one by one, and the results showed that residual communities still exhibited similar patterns of succession. This synchronous temporal pattern was not principally driven by the dominant genera (Microcystis, Psephonema, and Mougeotia). Instead, the entire phytoplankton community assemblages were important in the pattern. Most diversity indices of taxonomic and functional groupings were significantly correlated with solar irradiance, but not nutrient concentrations. Because the lake is eutrophic and there were already sufficient nutrients available, additional nutrients had little effect on seasonal taxonomic and functional diversity of phytoplankton in Lake Erhai.

Keywordseasonal succession environmental drivers algal taxonomic and functional groupings alpha and beta diversity eutrophication
Indexed BySCI
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000524753600001
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorShen, Hong; Xie, Ping
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan, Peoples R China
2.Guangzhou Chengyi Aquaculture Co Ltd, Guangzhou, Peoples R China
3.Xian Univ Technol, Fac Water Resources & Hydroelect Engn, State Key Lab Ecohydraul Northwest Arid Reg, Xian, Peoples R China
4.Univ Saskatchewan, Dept Vet Biomed Sci, Saskatoon, SK, Canada
5.Univ Saskatchewan, Toxicol Ctr, Saskatoon, SK, Canada
6.Baylor Univ, Dept Environm Sci, Waco, TX 76798 USA
7.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing, Peoples R China
8.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining, Peoples R China
Recommended Citation
GB/T 7714
Wang, Huan,Zhao, Dandan,Chen, Liang,et al. Light, but Not Nutrients, Drives Seasonal Congruence of Taxonomic and Functional Diversity of Phytoplankton in a Eutrophic Highland Lake in China[J]. FRONTIERS IN PLANT SCIENCE,2020,11(1):11.
APA Wang, Huan.,Zhao, Dandan.,Chen, Liang.,Giesy, John P..,Zhang, Weizhen.,...&Xie, Ping.(2020).Light, but Not Nutrients, Drives Seasonal Congruence of Taxonomic and Functional Diversity of Phytoplankton in a Eutrophic Highland Lake in China.FRONTIERS IN PLANT SCIENCE,11(1),11.
MLA Wang, Huan,et al."Light, but Not Nutrients, Drives Seasonal Congruence of Taxonomic and Functional Diversity of Phytoplankton in a Eutrophic Highland Lake in China".FRONTIERS IN PLANT SCIENCE 11.1(2020):11.
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