Using lower taxonomic resolution and ecological approaches as a surrogate for plankton species

Machado, Karine Borges; Borges, Pedro Paulino; Carneiro, Fernanda Melo; Santana, Juliana Ferreira de; Vieira, Ludgero Cardoso Galli; Huszar, Vera L. M.; Nabout, João Carlos

doi:10.1007/s10750-014-2042-y

Cited by 42 publications

(31 citation statements)

References 51 publications

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“…The use of information at the species level is of great relevance in many studies, but in some cases, especially in monitoring programs, it is advisable to alleviate the sampling processing in order to maintain compatible financial and time costs, even if it involves loss of little ecological information (Machado et al 2015). Our results show that although the influence of the flood pulse on environmental and biological characteristics in Amazonian floodplains (Junk et al 1989;Thomaz et al 2007;Junk et al 2012), the concordances among groups and numerical and taxonomic substitutions observed in a seasonal period were similar to those found in the other season.…”

Section: Analysesmentioning

confidence: 99%

Two practical approaches to monitoring the zooplanktonic community at Lago Grande do Curuai, Pará, Brazil

2015

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The use of substitute groups in biomonitoring programs has been proposed to minimize the high financial costs and time for samples processing. The objectives of this study were to evaluate the correlation between (i) the spatial distribution among the major zooplankton groups (cladocerans, copepods, rotifers, and testaceans protozoa), (ii) the data of density and presence/ absence of species, and (iii) the data of species, genera, and families from samples collected in the Lago Grande do Curuai, Pará, Brazil. A total of 55 sample of the zooplanktonic community was collected, with 28 samples obtained in March and 27 in September, 2013. The agreement between the different sets of data was assessed using Mantel and Procrustes tests. Our results indicated high correlations between genus level and species level and high correlations between presence/absence of species and abundance, regardless of the seasonal period. These results suggest that zooplankton community could be incorporated in a long-term monitoring program at relatively low financial and time costs. KEYWORDS: Biomonitoring, Cladoceran, Copepod, Rotifer, Testate amoebae. Duas abordagens práticas para o monitoramento da comunidade zooplanctônica no Lago Grande do Curuai, Pará, Brasil RESUMOO uso de grupos substitutos em programas de biomonitoramento tem sido proposto para minimizar os altos custos financeiros e tempo para processamento das amostras. Os objetivos deste estudo foram avaliar a correlação entre (i) a distribuição espacial nos principais grupos zooplanctônicos (cladóceros, copépodes, protozoários testáceos e rotíferos), (ii) os dados de densidade e presença/ausência de espécies, e (iii) os dados de espécies, gêneros e famílias a partir de amostras coletadas no Lago Grande do Curai, Pará, Brasil. Um total de 55 amostras da comunidade zooplanctônica foi coletada, sendo 28 em março e 27 em setembro de 2013. A concordância entre os diferentes conjuntos de dados foi avaliada por meio dos testes de Mantel e Procrustes. Nossos resultados indicam alta correlação entre nível de gênero e espécies e entre a presença/ausência de espécies e abundância, independentemente do período sazonal. Estes resultados sugerem que a comunidade zooplanctônica pode ser incorporada em programas de monitoramento a longo prazo com custos financeiros e de tempo relativamente menores.

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Section: Analysesmentioning

confidence: 99%

Two practical approaches to monitoring the zooplanktonic community at Lago Grande do Curuai, Pará, Brazil

2015

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“…During the collection period, 19 of the lakes were connected to the main river channel and 10 were isolated. The floodplain lakes varied in terms of limnological, morphometrical and soil use characteristics (Machado et al 2015; and represent 29 communities that vary in phytoplankton species richness (6-22 species, see details in Machado et al 2015).…”

Section: Datasetmentioning

confidence: 99%

“…All variables were assessed at the same place and depth as the phytoplankton. Further details on the sampling of zooplankton are described in Machado et al (2015).…”

Section: Datasetmentioning

confidence: 99%

Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities

2017

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Variation in phytoplankton functional diversity is partioned and mapped using several indices and linkage methods based on dendrograms. Th e relationships between diversity metrics and major environmental predictors, including zooplankton density, were assessed in 29 phytoplankton communities of fl oodplain lakes distributed along the Middle Araguaia River in central Brazil. Th e dendrogram-based functional diversity indices were Functional Group Richness, Functional Diversity, Mean Pairwise Distance and Mean Nearest Taxon Distance, whereas seven diff erent hierarchical agglomerative linkage methods we used. Th e performance of indices were compared using ANOVA and their spatial variation in response to major environmental predictors evaluated. Th e results indicate that variation in functional diversity values is primarily a product of the type of index chosen. Th is variation was statistically signifi cant in 90 % of the fl oodplain lakes studied; however, a spatial pattern of variation in index values along the river was not detected. Furthermore, environmental constraints, including zooplankton density, were weak predictors of functional diversity indices. Th erefore, the mathematical characteristics of indices are of primary importance in explaining variation among functional diversity values.

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“…Velho et al 2000Velho et al , 2003Lansac-Tôha et al 2004, 2014Alves et al 2010Alves et al , 2012Schwind et al 2016). Other studies on testate amoebae diversity are still at the early stages in other Brazilian floodplains, including the Amazon, Araguaia, and Pantanal (Machado et al 2015;Patterson et al 2015;Vieira et al 2015). Thus, studies investigating the community structure of testate amoebae in floodplains could enhance taxonomic knowledge and characterize the main predictors of these communities.…”

Section: Introductionmentioning

confidence: 99%

Temporal dynamics and environmental predictors on the structure of planktonic testate amoebae community in four Neotropical floodplains

Arrieira

Schwind

Bonecker

et al. 2016

Journal of Freshwater Ecology

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Understanding the environmental factors that control community structure has become a major focus of ecological research in recent decades. Here, we aimed to analyze the structure of planktonic testate amoebae community and the impact of environmental variables on the diversity of planktonic species in four floodplains of Brazil (Amazonian, Araguaia, Paran a, and Pantanal) over two hydrological periods (2011 and 2012). We hypothesized that biological diversity (richness, abundance, and diversity) of the testate amoebae community is higher during drought periods. Samples were collected from the subsurface of the limnetic region of 72 lakes in the four floodplains during both drought and flood periods in both years. We identified 109 species, belonging to 11 families. Difflugiidae and Arcellidae exhibited higher species composition and abundance. ANOVA results showed noticeable temporal variation in testate amoebae community structure. We confirmed that the highest richness, abundance, and diversity were primarily recorded during drought periods, with significant differences being documented among floodplains and across the two hydrological periods. Multiple regression analysis also indicated that testate amoebae diversity is related to the productivity of the environments in the Amazonian, Araguaia, and Paran a floodplains. Depth of lakes and phosphorus appeared to be limiting factors in the Paran a and Araguaia floodplains, while dissolved oxygen limited species diversity in the Pantanal floodplain. Our results highlight that testate amoebae community exhibit the greatest biological diversity during drought periods, while species diversity is influenced by the environmental conditions (primarily productivity) of each floodplain.

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Using lower taxonomic resolution and ecological approaches as a surrogate for plankton species

Cited by 42 publications

References 51 publications

Two practical approaches to monitoring the zooplanktonic community at Lago Grande do Curuai, Pará, Brazil

Two practical approaches to monitoring the zooplanktonic community at Lago Grande do Curuai, Pará, Brazil

Assessing the spatial variation of functional diversity estimates based on dendrograms in phytoplankton communities

Temporal dynamics and environmental predictors on the structure of planktonic testate amoebae community in four Neotropical floodplains

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