Seasonal and spatial functional shifts in phytoplankton communities of five tropical reservoirs

Santana, Lucineide Maria; Weithoff, Guntram; Ferragut, Carla

doi:10.1007/s10452-017-9634-3

Cited by 12 publications

(9 citation statements)

References 43 publications

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“…Another aspect in community studies is the analysis of spatial (mostly vertical) differences in communities from stratified environments (e.g., Longhi and Beisner, 2010;Santana et al, 2017). Often the response to environmental changes or a detailed analysis of the traits within a particular taxonomic group (representing a particular set of traits) has been the focus.…”

Section: Study Of Communities Vs Selected Taxonomic Groupsmentioning

confidence: 99%

“…months or years are highly suitable to these types of questions, especially when similar environmental changes are repeated during the investigation, representing a form of temporal replication (Pomati et al, 2012;Edwards et al, 2013;Tsai et al, 2014;Weithoff et al, 2015;Bortolini et al, 2016;Weithoff and Gaedke, 2017). Alternatively, instead of temporal replication, trait-based approaches also enable a space-for-time substitution in which many sites receiving a similar environmental signal (e.g., sites along a coastal or river stretch or lakes within the same region) are sampled only once or a very few times (Longhi and Beisner, 2010;Machado et al, 2016;Santana et al, 2017;Vadrucci et al, 2017). Trait-based approaches become particularly helpful in such cases, as they are ataxonomic, facilitating the detection of common response patterns within these potentially disparate communities.…”

Section: Comparing Freshwater and Marine Trait Studies: Assembly Vs mentioning

confidence: 99%

“…Trait-based approaches become particularly helpful in such cases, as they are ataxonomic, facilitating the detection of common response patterns within these potentially disparate communities. Another aspect of freshwater trait-based studies is the analysis of the vertical distribution of phytoplankton (Pomati et al, 2012;Beisner and Longhi, 2013;Santana et al, 2017), when steep physical-chemical gradients exist. One drawback we noted in several studies is that they lack a clear rationale as to why they use trait-based approaches in relation to the ecological goals (as also argued by Hébert et al, 2017 for zooplankton).…”

Section: Comparing Freshwater and Marine Trait Studies: Assembly Vs mentioning

confidence: 99%

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Measures and Approaches in Trait-Based Phytoplankton Community Ecology – From Freshwater to Marine Ecosystems

Weithoff

Beisner

2019

Front. Mar. Sci.

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Trait-based approaches to investigate (short-and long-term) phytoplankton dynamics and community assembly have become increasingly popular in freshwater and marine science. Although the nature of the pelagic habitat and the main phytoplankton taxa and ecology are relatively similar in both marine and freshwater systems, the lines of research have evolved, at least in part, separately. We compare and contrast the approaches adopted in marine and freshwater ecosystems with respect to phytoplankton functional traits. We note differences in study goals relating to functional trait use that assess community assembly and those that relate to ecosystem processes and biogeochemical cycling that affect the type of characteristics assigned as traits to phytoplankton taxa. Specific phytoplankton traits relevant for ecological function are examined in relation to herbivory, amplitude of environmental change and spatial and temporal scales of study. Major differences are identified, including the shorter time scale for regular environmental change in freshwater ecosystems compared to that in the open oceans as well as the type of sampling done by researchers based on site-accessibility. Overall, we encourage researchers to better motivate why they apply trait-based analyses to their studies and to make use of process-driven approaches, which are more common in marine studies. We further propose fully comparative trait studies conducted along the habitat gradient spanning freshwater to brackish to marine systems, or along geographic gradients. Such studies will benefit from the combined strength of both fields.

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Section: Study Of Communities Vs Selected Taxonomic Groupsmentioning

confidence: 99%

Section: Comparing Freshwater and Marine Trait Studies: Assembly Vs mentioning

confidence: 99%

Section: Comparing Freshwater and Marine Trait Studies: Assembly Vs mentioning

confidence: 99%

See 1 more Smart Citation

Measures and Approaches in Trait-Based Phytoplankton Community Ecology – From Freshwater to Marine Ecosystems

Weithoff

Beisner

2019

Front. Mar. Sci.

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“…Located in Alto Tietê headwater basin, the reservoir is surrounded by native forest and the watershed is part of an environmental preservation area of the Atlantic Forest. Ribeirão do Campo is oligotrophic, with weakly acidic waters and low conductivity (Santana et al 2017).…”

Section: Study Sitesmentioning

confidence: 99%

Assessing the degree of ecological change and baselines for reservoirs: challenges and implications for management

Wengrat

Bennion

Ferreira³

et al. 2019

J Paleolimnol

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Tropical reservoirs are sensitive to eutrophication but long-term impacts of impoundment on their productivity and biota are poorly understood. Here, we employ a palaeolimnological approach to assess whether ecological baselines can be defined for reservoirs, and examine the challenges and management implications. We studied the environmental history of five reservoirs in Brazil with different productivities, using sediment records covering the period since reservoir construction (* 50-90 years). Our main goals, based on the analysis of organic geochemistry (TOC, TN, TP, C:N), stable isotopes Electronic supplementary material The online version of this article (

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“…Previous studies demonstrated that phytoplankton structure is affected by the trophic state of the system (Matsumura-Tundisi & Tundisi 2005;Bortolini et al 2014;Salmaso et al 2015;Santana et al 2017). Indeed, the eutrophication of aquatic systems relies heavily on changes in nutrient concentrations, which can influence species selection.…”

Section: Introductionmentioning

confidence: 99%

Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states

2020

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Phytoplankton structure is influenced by environmental factors, seasonal cycles and the trophic state of the system. The objective of the present study was to identify guilds of phytoplankton species that are representative of seasonality and trophic status. We evaluated phytoplankton biomass and species composition in five tropical reservoirs, with different trophic states and during rainy and dry periods. At most of the sampling sites, total biomass was higher during the rainy season. Moreover, high cyanobacterial biomass was observed in all reservoirs except for one of the mesotrophic reservoirs, which had no significant contribution from the group. Phytoplankton guilds associated with the trophic gradient and seasonality were identified. Additionally, trophic status was determined to be the most important community structure factor. The results emphasize the importance of taxonomic identification when monitoring phytoplankton structure and autoecology. Furthermore, these aquatic organisms are highly sensitive to environmental variations, making them useful tools for evaluating and/or monitoring the ecological condition of aquatic ecosystems.

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Seasonal and spatial functional shifts in phytoplankton communities of five tropical reservoirs

Cited by 12 publications

References 43 publications

Measures and Approaches in Trait-Based Phytoplankton Community Ecology – From Freshwater to Marine Ecosystems

Measures and Approaches in Trait-Based Phytoplankton Community Ecology – From Freshwater to Marine Ecosystems

Assessing the degree of ecological change and baselines for reservoirs: challenges and implications for management

Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states

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