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  1. Article ; Online: Systematic mapping of phytoplankton literature about global climate change: revealing temporal trends in research

    Machado, Karine Borges / Andrade, Ariany Tavares de / Almeida, Marcela Fernandes de / Nabout, João Carlos

    Hydrobiologia. 2023 Jan., v. 850, no. 1 p.167-182

    2023  

    Abstract: In aquatic ecosystems, phytoplankton is an important component of biodiversity. Although much is already known about the main climate change agents impacting phytoplankton, it is necessary to systematize this knowledge in order to identify the main ... ...

    Abstract In aquatic ecosystems, phytoplankton is an important component of biodiversity. Although much is already known about the main climate change agents impacting phytoplankton, it is necessary to systematize this knowledge in order to identify the main trends, gaps, and perspectives for future research in this field. Thus, we conducted a systematic review of the global scientific literature on phytoplankton and climate change. We found 660 articles published between 1991 and 2020 using the Web of Science platform. The studies were mostly conducted in marine and freshwater environments using an observational approach. The main variables studied were temperature and nutrient concentrations. The main phytoplankton response variables are linked to metrics of species composition/diversity or physiological/biochemical traits of organisms. We found that over the last 30 years, a large number of climatic predictors and phytoplankton response variables have been studied. However, the number of studies evaluating interactions of multiple variables (climate and phytoplankton response) is small in comparison to the total amount of research. Thus, the combination of methodological approaches, as well as the simultaneous study of multiple climate predictors and response variables, can help in the production of new information to understanding of the effects of climate change on phytoplankton.
    Keywords climate ; climate change ; freshwater ; phytoplankton ; species diversity ; systematic review ; temperature
    Language English
    Dates of publication 2023-01
    Size p. 167-182.
    Publishing place Springer International Publishing
    Document type Article ; Online
    ZDB-ID 214428-1
    ISSN 1573-5117 ; 0018-8158
    ISSN (online) 1573-5117
    ISSN 0018-8158
    DOI 10.1007/s10750-022-05052-y
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Shortcuts for biomonitoring programs of stream ecosystems: Evaluating the taxonomic, numeric, and cross-taxa congruence in phytoplankton, periphyton, zooplankton, and fish assemblages.

    Faquim, Ruan Carlos Pires / Machado, Karine Borges / Teresa, Fabrício Barreto / Oliveira, Pedro Henrique Francisco de / Granjeiro, Gustavo Fernandes / Galli Vieira, Ludgero Cardoso / Nabout, João Carlos

    PloS one

    2021  Volume 16, Issue 10, Page(s) e0258342

    Abstract: Different biological groups can be used for monitoring aquatic ecosystems because they can respond to variations in the environment. However, the evaluation of different bioindicators may demand multiple financial resources and time, especially when ... ...

    Abstract Different biological groups can be used for monitoring aquatic ecosystems because they can respond to variations in the environment. However, the evaluation of different bioindicators may demand multiple financial resources and time, especially when abundance quantification and species-level identification are required. In this study, we evaluated whether taxonomic, numerical resolution and cross-taxa can be used to optimize costs and time for stream biomonitoring in Central Brazil (Cerrado biome). For this, we sampled different biological groups (fish, zooplankton, phytoplankton, and periphyton) in stream stretches distributed in a gradient of land conversion dominated by agriculture and livestock. We used the Mantel and Procrustes analyses to test the association among different taxonomic levels (species to class), the association between incidence and abundance data (numerical resolution), and biological groups. We also assessed the relative effect of local environmental and spatial predictors on different groups. The taxonomic levels and numerical resolutions were strongly correlated in all taxonomic groups (r > 0.70). We found no correlations among biological groups. Different sets of environmental variables were the most important to explain the variability in species composition of distinct biological groups. Thus, we conclude that monitoring the streams in this region using bioindicators is more informative through higher taxonomic levels with occurrence data than abundance. However, different biological groups provide complementary information, reinforcing the need for a multi-taxa approach in biomonitoring.
    MeSH term(s) Animals ; Biodiversity ; Biological Monitoring ; Brazil ; Ecosystem ; Fishes/physiology ; Geography ; Periphyton/physiology ; Phylogeny ; Phytoplankton/physiology ; Species Specificity ; Zooplankton/physiology
    Language English
    Publishing date 2021-10-14
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0258342
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Spatial processes determine planktonic diatom metacommunity structure of headwater streams

    Oliveira, Pedro Henrique Francisco de / Machado, Karine Borges / Teresa, Fabrício Barreto / Heino, Jani / Nabout, João Carlos

    Limnologica. 2020 Sept., v. 84

    2020  

    Abstract: Headwater streams are interesting ecological systems for studies of metacommunities given their high degrees of isolation, unidirectionality of water flow and hierarchical organization in the drainage network. In addition, for passively dispersing ... ...

    Abstract Headwater streams are interesting ecological systems for studies of metacommunities given their high degrees of isolation, unidirectionality of water flow and hierarchical organization in the drainage network. In addition, for passively dispersing aquatic organisms (e.g. planktonic diatoms), connectivity between sites is unidirectional, which implies a higher isolation of headwaters, leading to a greater dispersal limitation between streams. The aim of this study was to evaluate the relative importance of local environmental (i.e., physicochemical variables) and spatial (i.e., distance between sites) components to the planktonic diatom community in 28 headwater streams of the Cerrado, central region of Brazil. Due the fact that each sampling point was located in a different headwater stream, we expected that spatial components (a proxy for diatom dispersal) were more important than local environmental conditions to the structure of the diatom metacommunity. We found 51 morphospecies of diatoms (Bacillariophyceae). The community composition of diatoms showed strong spatial variation, which was also indicated by high beta diversity (mainly contributed by the turnover component). The variation in diatom community composition, species richness, total density, and Local Contribution to Beta Diversity (LCBD) of headwaters streams was explained solely by spatial factors. Based on these results, we inferred that due to dispersal limitation, the diatom communities of these headwaters tend to show distinct species composition, with high species turnover among the local communities. We highlight the importance of headwater streams as reservoirs of biodiversity for a riverine diatom metacommunity.
    Keywords Bacillariophyceae ; cerrado ; community structure ; drainage ; morphospecies ; plankton ; riparian areas ; species richness ; streams ; water ; water flow ; Brazil
    Language English
    Dates of publication 2020-09
    Publishing place Elsevier GmbH
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 3380-7
    ISSN 0075-9511
    ISSN 0075-9511
    DOI 10.1016/j.limno.2020.125813
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Functional and taxonomic diversities are better early indicators of eutrophication than composition of freshwater phytoplankton

    Machado, Karine Borges / Bini, Luis Mauricio / Melo, Adriano Sanches / Andrade, Ariany Tavares de / Almeida, Marcela Fernandes de / Carvalho, Priscilla / Teresa, Fabrício Barreto / Roque, Fábio de Oliveira / Bortolini, Jascieli Carla / Padial, Andre Andrian / Vieira, Ludgero Cardoso Galli / Dala-Corte, Renato Bolson / Siqueira, Tadeu / Juen, Leandro / Dias, Murilo Sversut / Gama Júnior, Watson Arantes / Martins, Renato Tavares / Nabout, João Carlos

    Hydrobiologia. 2023 Mar., v. 850, no. 6 p.1393-1411

    2023  

    Abstract: Eutrophication is a key threat to aquatic biodiversity around the world, but especially in the Cerrado biome that has undergone intensive land use conversion and fertilizer use. In this study, we investigated how water conditions and different taxonomic ... ...

    Abstract Eutrophication is a key threat to aquatic biodiversity around the world, but especially in the Cerrado biome that has undergone intensive land use conversion and fertilizer use. In this study, we investigated how water conditions and different taxonomic and functional indicators of phytoplankton communities responded to eutrophication over time and also identified which of these variables can act as early indicators of eutrophication. We used a mesocosm experiment to simulate shallow lakes and added nutrients to produce eutrophic and oligo-mesotrophic environments. We found that conductivity and turbidity increased with the nutrient enrichment process. Eutrophication did not change species richness; however, it increased the total phytoplankton density and chlorophyll-a concentration and decreased the diversity indices (Shannon–Wiener diversity and Pielou’s equitability) over time, for both taxonomic and functional facets. Our results indicate that eutrophication may not have marked effects on the composition of the initially dominant organisms in the short term but does increase the density of certain organisms and exclude rare species and functional groups in eutrophic environments along the time. Furthermore, the diversity indices are more sensitive indicators of eutrophication compared to abiotic indicators and composition of species and functional groups. Therefore, they may be considered reliable early warnings of ecosystem changes.
    Keywords cerrado ; chlorophyll ; ecosystems ; eutrophication ; fertilizer application ; freshwater ; land use change ; phytoplankton ; rare species ; species richness ; turbidity
    Language English
    Dates of publication 2023-03
    Size p. 1393-1411.
    Publishing place Springer International Publishing
    Document type Article ; Online
    ZDB-ID 214428-1
    ISSN 1573-5117 ; 0018-8158
    ISSN (online) 1573-5117
    ISSN 0018-8158
    DOI 10.1007/s10750-022-04954-1
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Alternatives for the biomonitoring of fish and phytoplankton in tropical streams

    Barbosa, Hugo de Oliveira / Machado, Karine Borges / Vieira, Maisa Carvalho / Pereira, Hasley Rodrigo / Gomes, Leonardo Fernandes / Nabout, João Carlos / Teresa, Fabrício Barreto / Vieira, Ludgero Cardoso Galli

    Neotropical Biology and Conservation. 2019 Nov. 07, v. 14, no. 4

    2019  

    Abstract: Biomonitoring programs need to balance accurate responses in assessments of changes in biological communities with sampling that is fast and low cost. In this study, we evaluated the concordance among fish and phytoplankton communities of streams. We ... ...

    Abstract Biomonitoring programs need to balance accurate responses in assessments of changes in biological communities with sampling that is fast and low cost. In this study, we evaluated the concordance among fish and phytoplankton communities of streams. We tested the cross-taxa surrogacy, taxonomic, numerical resolution and ecological substitute group (habitat use and trophic guilds) resolution with Procrustes analyses aim of simplifying the biomonitoring process. We collect a total fish abundance of 8,461 individuals, represented by the ecological classes of habitat, including benthic, nektonic, nektobenthic, marginal and trophic guilds by detritivore, terrestrial invertivore, aquatic invertivore, piscivore, algivore and herbivore. We sampled a phytoplankton total density of 1,466.68 individuals/ml, represented by four Morphology-Based Functional Groups and nine Reynolds Functional Groups. Our results don’t support the use of substitute groups among fish and phytoplankton. For fish, habitat use and trophic guild are good surrogates for species-level data. Additionally, our results don’t support the use of functional groups as surrogates for phytoplankton. We suggest the use of higher taxonomic levels (genus and family) and record only the occurrence of species and/or genus for fish and phytoplankton. Our findings contribute to decreasing the costs and time of biomonitoring programs assessments and/or conservation plans on fish and phytoplankton communities of headwater streams.
    Keywords algivores ; benthic organisms ; detritivores ; environmental monitoring ; fish ; habitat preferences ; habitats ; herbivores ; nekton ; phytoplankton ; piscivores ; streams
    Language English
    Dates of publication 2019-1107
    Size p. 361-380.
    Publishing place Pensoft Publishers
    Document type Article
    ZDB-ID 2613449-4
    ISSN 2236-3777 ; 1809-9939
    ISSN (online) 2236-3777
    ISSN 1809-9939
    DOI 10.3897/neotropical.14.e38088
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Using lower taxonomic resolution and ecological approaches as a surrogate for plankton species

    Machado, Karine Borges / Borges, Pedro Paulino / Carneiro, Fernanda Melo / de Santana, Juliana Ferreira / Vieira, Ludgero Cardoso Galli / de Moraes Huszar, Vera Lúcia / Nabout, João Carlos

    Hydrobiologia. 2015 Jan., v. 743, no. 1

    2015  

    Abstract: The use of lower taxonomic resolutions and ecological classifications can function as a strategy to minimize difficulties in plankton identification. To assess this issue, we evaluated the concordance of the spatial ordering of lakes in a floodplain ... ...

    Abstract The use of lower taxonomic resolutions and ecological classifications can function as a strategy to minimize difficulties in plankton identification. To assess this issue, we evaluated the concordance of the spatial ordering of lakes in a floodplain using phytoplankton and zooplankton densities scaled at three taxonomic levels (species, genus, and family) and two exclusive ecological classifications for phytoplankton [Reynolds functional groups (RFGs) and morphology-based functional groups]. Furthermore, we evaluated the concordance of environmental variables with each taxonomic resolution/ecological classification. Procrustes and Mantel tests (simple and partial) were used for the concordance analysis. The correlations between species and higher taxonomic levels were found for phytoplankton and zooplankton. For the ecological classifications, significant r values, greater than 0.70, were obtained only for the Mantel test between species and RFGs. The relationship between species and genus and between species and family for phytoplankton can be explained by the environmental structure. For zooplankton, only species were related to environmental variables. These results indicate that it is possible to adopt a lower taxonomic resolution for identification of phytoplankton and zooplankton without a significant loss of information. However, the use of ecological classifications for phytoplankton is not recommended for this purpose.
    Keywords environmental factors ; floodplains ; lakes ; phytoplankton ; zooplankton
    Language English
    Dates of publication 2015-01
    Size p. 255-267.
    Publishing place Springer-Verlag
    Document type Article
    ZDB-ID 214428-1
    ISSN 1573-5117 ; 0018-8158
    ISSN (online) 1573-5117
    ISSN 0018-8158
    DOI 10.1007/s10750-014-2042-y
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Environmental factors affecting chlorophyll-a concentration in tropical floodplain lakes, Central Brazil.

    de Oliveira Marcionilio, Suzana Maria Loures / Machado, Karine Borges / Carneiro, Fernanda Melo / Ferreira, Manuel Eduardo / Carvalho, Priscilla / Vieira, Ludgero Cardoso Galli / de Moraes Huszar, Vera Lúcia / Nabout, João Carlos

    Environmental monitoring and assessment

    2016  Volume 188, Issue 11, Page(s) 611

    Abstract: Chlorophyll-a (Chl-a) has been widely used in the assessment and monitoring of aquatic environments. Local and regional factors can influence Chl-a concentrations; moreover, the connection between terrestrial and aquatic ecosystems is a major paradigm ... ...

    Abstract Chlorophyll-a (Chl-a) has been widely used in the assessment and monitoring of aquatic environments. Local and regional factors can influence Chl-a concentrations; moreover, the connection between terrestrial and aquatic ecosystems is a major paradigm within aquatic ecology. Here, we investigate the spatial distribution of Chl-a concentrations in a tropical savannah floodplain in Central Brazil using a broad spatial data set (a 900-km north-south transect; 30 lakes). We determine the relative importance of local environmental variables (limnological and morphometric) and regional (land use) and spatial distances (spatial eigenvector) on Chl-a concentrations using partial linear regression. We evaluate the direct and indirect effects of local and regional variables on Chl-a with a path analysis. Our results indicate spatially autocorrelated patterns wherein lakes in closer proximity showed more similar levels of Chl-a than more distant lakes. Local environmental factors explained most variance in Chl-a (R
    MeSH term(s) Brazil ; Chlorophyll/analysis ; Environmental Monitoring ; Lakes/chemistry
    Chemical Substances Chlorophyll (1406-65-1) ; chlorophyll a (YF5Q9EJC8Y)
    Language English
    Publishing date 2016-11
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 782621-7
    ISSN 1573-2959 ; 0167-6369
    ISSN (online) 1573-2959
    ISSN 0167-6369
    DOI 10.1007/s10661-016-5622-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Using lower taxonomic resolution and ecological approaches as a surrogate for plankton species

    Machado, Karine Borges / Borges, Pedro Paulino / Carneiro, Fernanda Melo / de Santana, Juliana Ferreira / Vieira, Ludgero Cardoso Galli / de Moraes Huszar, Vera Lúcia / Nabout, João Carlos

    Hydrobiologia

    Volume v. 743,, Issue no. 1

    Abstract: The use of lower taxonomic resolutions and ecological classifications can function as a strategy to minimize difficulties in plankton identification. To assess this issue, we evaluated the concordance of the spatial ordering of lakes in a floodplain ... ...

    Abstract The use of lower taxonomic resolutions and ecological classifications can function as a strategy to minimize difficulties in plankton identification. To assess this issue, we evaluated the concordance of the spatial ordering of lakes in a floodplain using phytoplankton and zooplankton densities scaled at three taxonomic levels (species, genus, and family) and two exclusive ecological classifications for phytoplankton [Reynolds functional groups (RFGs) and morphology-based functional groups]. Furthermore, we evaluated the concordance of environmental variables with each taxonomic resolution/ecological classification. Procrustes and Mantel tests (simple and partial) were used for the concordance analysis. The correlations between species and higher taxonomic levels were found for phytoplankton and zooplankton. For the ecological classifications, significant r values, greater than 0.70, were obtained only for the Mantel test between species and RFGs. The relationship between species and genus and between species and family for phytoplankton can be explained by the environmental structure. For zooplankton, only species were related to environmental variables. These results indicate that it is possible to adopt a lower taxonomic resolution for identification of phytoplankton and zooplankton without a significant loss of information. However, the use of ecological classifications for phytoplankton is not recommended for this purpose.
    Keywords environmental factors ; phytoplankton ; floodplains ; lakes ; zooplankton
    Language English
    Document type Article
    ISSN 0018-8158
    Database AGRIS - International Information System for the Agricultural Sciences and Technology

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