Eutrophication decrease compositional dissimilarity in freshwater plankton communities

Li, Yun; Geng, Mengdie; Yu, Jinlei; Du, Yingxun; Xu, Min; Zhang, Weizhen; Wang, Jianjun; Su, Haojie; Wang, Rong; Chen, Feizhou

doi:10.1016/j.scitotenv.2022.153434

Cited by 38 publications

(14 citation statements)

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“…The findings of this study revealed the spatio‐temporal changes in diatom biodiversity across lakes in East China and identified the environmental factors that played crucial roles in shaping their distribution. In line with previous studies of lake environment and biodiversity (Crossetti et al, 2014; Li et al, 2022), significant correlations were found between the dissimilarity of diatom assemblages and abiotic factors. Meanwhile, there was clear evidence of diatom homogenization occurring both spatially and temporally as nutrient levels increased.…”

Section: Discussionsupporting

confidence: 90%

On the biodiversity of diatom communities in lakes of East China: Geochemical effects dominated after eutrophication

Zhao,

Wang,

et al. 2023

Journal of Biogeography

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AimOver the last century, lakes all over the world have experienced significant eutrophication and become more susceptible to critical transitions. This has prompted a growing need to understand how community dynamics shift following ecological perturbations. This study aims to elucidate the present status, spatial patterns and determinants of biological diversity, and how they have changed in response to alterations driven by eutrophication.LocationLakes of East China, mostly in the Yangtze River Basin.TaxaBacillariophyceae (163 species in 33 genres, see taxa names in Appendix S1).MethodsThe environmental conditions of over 60 lakes were assessed based on parameters such as water quality, physical characteristics and biogeochemical constituents. Surface sediment samples and high‐resolution sediment records were collected to quantify the biodiversity of diatom communities, and principal component analysis (PCA) was used to determine the major environmental gradients. Meanwhile, linear regression, canonical correlation analysis and Mantel tests were used to quantify the correlations between variables.ResultsBiodiversity metrics showed no distinct geographic patterns, although areas near large lakes showed comparatively high evenness. Smaller pairwise dissimilarities were observed among hypereutrophic lakes in comparison to lakes with a lower trophic status. The past century has witnessed a decrease in both pairwise dissimilarity and the standard deviation of evenness. A significant statistical association was found between dissimilarity and ionic concentration and composition in the surface sediment of lakes, rather than nutrient levels.Main ConclusionsFollowing regional eutrophication and human disturbance, a significant reduction in biodiversity differentiation was observed in lakes located in East China. Currently, the dominant factor in determining the beta diversity of diatom communities is geochemical conditions rather than nutrient concentrations. Long‐term stress caused by cultural eutrophication may also have altered the dominant determinant of regional biodiversity and diatom community dynamics.

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Section: Discussionsupporting

confidence: 90%

On the biodiversity of diatom communities in lakes of East China: Geochemical effects dominated after eutrophication

Zhao,

Wang,

et al. 2023

Journal of Biogeography

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“…This result is similar to the small number of calanoid species found at high altitudes in Japan [33]. Nutrients can affect the growth and development of phytoplankton, which in turn indirectly affects the species and abundance of zooplankton through the transfer of food chains [73,74]. Our result showed that in both types of lakes, the factor with the strongest correlation was TP.…”

Section: The Relationship Between Calanoid Species and Environmental ...supporting

confidence: 87%

Diversity of Freshwater Calanoid Copepods (Crustacea: Copepoda: Calanoida) in North-Eastern China

Ding,

Liu,

Shu

et al. 2024

Diversity

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The distribution and diversity of calanoid copepods were investigated using samples collected from 37 lakes in North-eastern (NE) China in 2019. A total of 10 calanoid copepods belonging to eight genera and three families were identified. Among them, Heterocope soldatovi Rylov, 1922 was recorded for the first time in China. Species from the family Centropagidae were more widespread than those from the families Temoridae and Diaptomidae. Sinocalanus doerrii (Brehm, 1909), previously not recorded in NE China, is now widespread alongside Boeckella triarticulata (Thomson G.M., 1883), and the latter species is also prevalent in that region. Canonical correspondence analysis (CCA) and redundancy analysis (RDA) revealed that calanoid copepods were significantly correlated with total phosphorus (TP), total nitrogen, conductivity, nitrate nitrogen, altitude, and dissolved organic carbon. TP was the most important environmental variable that impacted the distribution of calanoid copepods, including both fresh and saline–alkaline lakes. Integrating historical records, a total of 21 calanoid copepods were distributed in NE China, and we also gave comments on the ecology and distribution of these species.

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“…The analysis for the three individual lake groups also confirmed this assumption, however; the increase in dissimilarities along geographic distance only occurred in mesotrophic macrophyte‐dominated lakes, but not in the more eutrophic transition and algal‐dominated lakes (Figure S1). The significant impacts of eutrophication on the distance–decay relationships were expected, as increasing number of studies have shown that increasing eutrophication profoundly affects the assemblage compositional heterogeneity of aquatic macroinvertebrates (Donohue et al., 2009; Zhang, Cheng, Li, et al., 2019) and other aquatic organisms (Li et al., 2022; Lougheed et al., 2008; Menezes et al., 2015). Our findings also parallel with several recent studies assessing the effects of eutrophication on the taxonomic distance–decay patterns of diatom communities (Marquardt et al., 2017; Vilar et al., 2014), which highlighted that beta diversity in eutrophic areas was not controlled by spatial distance but only by eutrophication‐related environmental variables.…”

Section: Discussionmentioning

confidence: 99%

“…Anthropogenic eutrophication is generally associated with harmful algal blooms, oxygen depletion, habitat loss and substantial ecological degradation of ecosystem processes (Glibert & Burford, 2017; Schindler & Vallentyne, 2008). Not surprisingly, eutrophication may dramatically alter the community composition of various aquatic organisms, including bacteria, diatoms, zooplankton, macroinvertebrates and fishes, from local (alpha diversity) to regional scales (beta diversity) (Donohue et al., 2009; Ger et al., 2016; Li et al., 2022; Menezes et al., 2015; Zorzal‐Almeida et al., 2021; Zuo et al., 2024).…”

Section: Introductionmentioning

confidence: 99%

Eutrophication modifies the relationships between multiple facets of macroinvertebrate beta diversity and geographic distance in freshwater lakes

Jiang,

Peng,

Alahuhta

et al. 2024

Diversity and Distributions

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AimUnderstanding the distance–decay relationship (DDR) has been considered important because it reflects a combination of several ecological processes such as dispersal limitation and environmental sorting. However, effects of human disturbances on DDR are poorly known, especially in freshwater lakes. This study is aimed to examine how anthropogenic eutrophication modified the relationships between three facets (taxonomic, functional and phylogenetic) of macroinvertebrate beta diversity and geographic and environmental distances across 30 freshwater lakes.LocationThe Yangtze River floodplain, China.MethodsWe used Mantel tests to examine the relationships between multiple facets of assemblage dissimilarities (overall beta diversity, replacement and richness difference components) and geographic and environmental distances. Distance‐based redundancy analysis (dbRDA) and associated variation partitioning procedures were applied to explore the relative contributions of environmental and spatial factors on the three facets of beta diversity.ResultsWe found that none of the three beta diversity facets was related to geographic distance, but all were significantly related to environmental distance, mainly mirroring eutrophication‐related variables. Based on the variation partitioning approach, the macroinvertebrate assemblages examined were almost exclusively structured by environmental factors associated with eutrophication, while spatial variables had a negligible effect. Nevertheless, the different facets of beta diversity did not decrease (i.e., no homogenization trend) in lake groups showing the highest eutrophication levels, implying complex influences of anthropogenic disturbances in driving homogenization or differentiation in assemblage compositional dissimilarity.Main ConclusionsOur findings suggested that the high degrees of eutrophication acted as an environmental filter to significantly modify the spatial distance–decay relationships, possibly via decreasing the importance of dispersal limitation in shaping macroinvertebrate assemblages in the studied lakes. Given the sensitivity of beta diversity patterns to eutrophication we found in this study, we recommend that the role of anthropogenic disturbances should be incorporated into research on general ecological patterns like the DDR.

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Eutrophication decrease compositional dissimilarity in freshwater plankton communities

Cited by 38 publications

References 105 publications

On the biodiversity of diatom communities in lakes of East China: Geochemical effects dominated after eutrophication

On the biodiversity of diatom communities in lakes of East China: Geochemical effects dominated after eutrophication

Diversity of Freshwater Calanoid Copepods (Crustacea: Copepoda: Calanoida) in North-Eastern China

Eutrophication modifies the relationships between multiple facets of macroinvertebrate beta diversity and geographic distance in freshwater lakes

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