Distribution and coexistence patterns of phytoplankton in subtropical shallow lakes and the role of niche-based and spatial processes

Ribeiro, Karine F.; Rocha, Cacinele Mariana da; Castro, Dilton de; Rodrigues, Lúcia Ribeiro; Crossetti, Luciane Oliveira

doi:10.1007/s10750-018-3539-6

Cited by 6 publications

(3 citation statements)

References 66 publications

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“…nitrogen and phosphorus concentration) conditions which can strong influence the microphytoplankton abundance and composition in this ecosystem. These hypotheses are also supported by several studies carried out in many freshwater ecosystems, including artificial lakes and reservoirs, which demonstrate strong influence of spatial, physicalchemical and nutrient availability factors in structuring phytoplankton communities composition and distribution (Huszar et al 2015;Souza et al 2016;Maloufi et al 2016;Cardoso et al 2019Cardoso et al ,2017Kruk et al 2017;Rosa et al 2017;Weithoff & Gaedke 2017;Ribeiro et al 2018;Anneville et al 2019;Alves et al 2020b;Kutlu et al 2020).…”

Section: Introductionmentioning

confidence: 68%

“…According to Ribeiro et al (2018), the degree of importance of the spatial and environmental components to phytoplankton distribution varies according to the spatial scale and the biotic group analysed. In general, purely environmental component tends to be more important at finer spatial scales, where the relative homogeneity in both environmental conditions and dispersal processes (optimized by smaller spatial extent and large water movements) could directly act on shaping phytoplankton communities.…”

Section: Discussionmentioning

confidence: 99%

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Environmental conditions are more effective than nutrient availability and spatial processes on explaining microphytoplankton functional structure in a subtropical hypereutrophic reservoir

Alves

Pinheiro-Silva

Schuster³

et al. 2021

Austral Ecology

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The structure of freshwater phytoplankton communities can be strongly influenced by environmental and spatial processes at different scales. To identify the main forces that drive phytoplankton structure becomes a relevant tool to understand several knowledge gaps in the phytoplankton ecology domain, such as community succession, biological invasions and responses to disturbances. We used the morphological-based functional groups (MBFG) approach to investigate the influence of environmental conditions (physical and chemical factors), nutrient availability and spatial processes (habitat connection and species dispersal) in structuring microphytoplankton community in a subtropical hypereutrophic reservoir located in southern Brazil. Samples were taken quarterly, between February 2017 and December 2018. We used distance-based multivariate analysis of variance (PERMA-NOVA) to evaluate potential spatial and seasonal dissimilarities in the MBFG's biovolume, and variation partitioning approach (pRDA) to evaluate the role of environmental, nutrient availability and spatial components in explain the microphytoplankton community structure. We identified 16 microphytoplankton taxa, which were sorted into five MBFGs. Significant seasonal dissimilarities were observed in the MBFG's biovolume. Higher relative biovolume of potential harmful cyanobacteria (MBFG III) and alien dinoflagellates (MBFG V) was observed in summer and autumn/winter, respectively. Pure environmental component (composed by physical and chemical predictors insolation, precipitation, total dissolved solids, turbidity, water temperature, water transparency and wind intensity) explained 45% of the variance in the MBFG's biovolume, whereas pure nutrient availability component explained 7% and spatial component explained only 3% of the biotic variance. The results showed that the environmental factorsespecially the seasonal-influenced onesare more effective than nutrient availability and spatial processes in explaining the microphytoplankton community structure in this ecosystem. Our findings alert to the need to consider the variability of the environmental conditions (mainly those directly influenced by seasonality) in phytoplankton community structure in disturbed freshwater ecosystems prone to eutrophication events.

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Section: Introductionmentioning

confidence: 68%

Section: Discussionmentioning

confidence: 99%

Environmental conditions are more effective than nutrient availability and spatial processes on explaining microphytoplankton functional structure in a subtropical hypereutrophic reservoir

Alves

Pinheiro-Silva

Schuster³

et al. 2021

Austral Ecology

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“…Most importantly, increasing evidences suggest that intrinsic mechanisms and interactions markedly play critical roles in phytoplankton community's response to variations in external environmental factors (Wentzky et al, 2020;Xue et al, 2018;Yan et al, 2020). For example, total nitrogen (TN) determined species co-occurrences pattern, making a substantial phytoplankton compositional shift towards diatoms in the reservoir (Ribeiro et al, 2018). In eutrophic condition, phytoplankton communities under cyanobacteria dominance exhibited a lower cohesion and less interactions between taxa but at nonetheless compositionally stable (Escalas et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Trophic states regulate assembly processes and network structures of small chromophytic phytoplankton communities in subtropical coastal ecosystem

Chen

Zhao

Jiang

et al. 2020

Preprint

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Small chromophytic phytoplankton (SCP) are anticipated to be more important for a significant proportion of primary production in estuarine-coastal ecosystems. However, responses of SCP community to coastal eutrophication are still unclear. In this study, we investigated diversity, co-occurrence and assembly features of SCP communities, as well as their relationship with environmental factors in the subtropical Beibu Gulf. The results exhibited that the alpha diversity (ANOVA, p < 0.001) and beta diversity (ANOSIM, p < 0.001) of SCP communities were significantly different among eutrophic states. Co-occurrence network analysis revealed a complex interaction between SCP community and environmental factors. Most ASVs in modules of the network were specific to trophic states. Further, phylogenetic based β-nearest taxon distance analyses revealed that stochastic processes mainly provided 69.26% contribution to SCP community assembly, whereas deterministic processes dominated community assembly in a heavy eutrophic state. Importantly, increased environmental disturbances, such as nitrogen and phosphorus nutrients, could alter SCP community structure and disrupt ecological processes. Overall, our findings elucidate the mechanism of diversity and assembly in marine SCP community and promote the understanding of SCP ecology related to subtropical coastal eutrophication.

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Ecological factors shaping cyanobacterial assemblages in a coastal lake system

et al. 2020

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Distribution and coexistence patterns of phytoplankton in subtropical shallow lakes and the role of niche-based and spatial processes

Cited by 6 publications

References 66 publications

Environmental conditions are more effective than nutrient availability and spatial processes on explaining microphytoplankton functional structure in a subtropical hypereutrophic reservoir

Environmental conditions are more effective than nutrient availability and spatial processes on explaining microphytoplankton functional structure in a subtropical hypereutrophic reservoir

Trophic states regulate assembly processes and network structures of small chromophytic phytoplankton communities in subtropical coastal ecosystem

Ecological factors shaping cyanobacterial assemblages in a coastal lake system

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