Biodiversity of testate amoebae (Arcellinida and Euglyphida) in different habitats of a lake in the Upper Paraná River floodplain

Alves, Geziele Mucio; Velho, Luiz Felipe Machado; Simões, Nadson Ressyé; Lansac‐Tôha, Fábio Amodêo

doi:10.1016/j.ejop.2010.07.001

Cited by 38 publications

(29 citation statements)

References 14 publications

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“…Previous studies also presented different taxa numbers. This study presented backwaters with 53 taxa, which is a high number compared with other studies on testate amoebae in aquatic macrophytes (Dabés and Velho, 2001;Leipnitz et al, 2006;Vieira et al, 2007;Alves et al, 2010). The fact that the backwaters presented a higher level of richness and diversity values during periods of high water could be associated with the increased water level leading to an expanded connection to the river.…”

Section: Discussionmentioning

confidence: 64%

Local factors affecting the testate amoeba community (Protozoa: Arcellinida; Euglyphida) in a neotropical floodplain

et al. 2015

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Section: Discussionmentioning

confidence: 64%

Local factors affecting the testate amoeba community (Protozoa: Arcellinida; Euglyphida) in a neotropical floodplain

et al. 2015

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“…These organisms are essentially aquatic and present in a wide array of moist, freshwater habitats, preferentially occupying biotopes associated with marginal vegetation and sediment (ALVES et al, 2012;MATTHEUSSEN et al, 2005 other studies have registered high densities in plankton (ALVES et al, 2007(ALVES et al, , 2012, 2008a, 2009VELHO et al, 1999. Abundance, richness and generation time of testate protozoa provide some ecological advantages to these organisms, making them interesting for scientific researches, both in spatial and time scales (FOISSNER, 1999).…”

Section: Introductionmentioning

confidence: 99%

“…These surveys have been developed since the eighteenth century (ARCHER, 1869;BARKER, 1968;BARNARD, 1879;BLOCHMANN, 1894;EHRENBERG, 1841). The first works were developed basically from taxonomic approaches and some species occurrence, and subsequently considering ecological aspects more complex.…”

Section: Introductionmentioning

confidence: 99%

<b>Advances in studies on testate amoebae (Arcellinida and Euglyphida): a scientometric approach</b> - doi: 10.4025/actascibiolsci.v35i4.18184

Schwind

Dias

Joko

et al. 2013

Acta Sci. Biol. Sci.

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ABSTRACT. Testate amoebae have a great potential for use in scientific researches due to their ecological characteristics such as abundance, wealth, and generation time. In this way, this study aimed to present a scientometric analysis to describe the evolution of the different advances in researches on testate amoebae and identify a temporal pattern in this evolution. The literature review was based on papers indexed by Thomson Reuters (www.isiwebofknowledge.com) and SciVerse Scopus (www.scopus.com). In total 562 papers were examined. Results showed a pattern of evolution in scientific studies, most with ecological approach with descriptive and predictive designs. At the global level, researches on testate amoebae progressed in both the number of articles published as well as in the areas studied, especially in Europe and North America. The low number of experimental studies and review articles can characterize the lack of more knowledge to be acquired, both from particular observations (descriptive studies) as well as the observations noted sufficiently predictive of work. In Brazil, studies with testate amoebae are still developing, concentrated in only some regions, but the increased number of studies in recent years allows the prediction of the same overall patterns of advance for Brazilian researches. Thus, we conclude that these organisms are being increasingly used as a tool response in ecological studies.Keywords: protest, geographical distribution, scientometric analysis, time trend.Avanços nos estudos sobre amebas testáceas (Arcellinida e Euglyphida): uma abordagem cienciométrica RESUMO. Amebas testáceas possuem grande potencial de utilização em pesquisas de caráter científico pelas suas características ecológicas como abundância, riqueza, e tempo de geração. Nesse sentido, o objetivo do presente estudo foi apresentar uma análise cienciométrica, a fim de descrever a evolução das diferentes abordagens nas pesquisas de tecamebas e identificar um padrão temporal nessa evolução. A revisão dos artigos científicos foi realizada com base nos artigos indexados pela base Thomson Reuters (www.isiwebofknowledge.com) e pela base SciVerse Scopus (www.scopus.com). Foram analisados 562 artigos científicos. Os resultados demonstraram um padrão de evolução nos trabalhos científicos, sendo a maioria de cunho ecológico com delineamentos descritivos e preditivos. Em âmbito global, as pesquisas com tecamebas apresentaram evolução tanto no número de artigos publicados bem como nas áreas estudadas, principalmente na Europa e América do Norte. O baixo número de trabalhos experimentais e de revisão pode caracterizar a falta de maiores conhecimentos a serem ainda adquiridos, tanto a partir das observações particulares (trabalhos descritivos) bem como das observações suficientemente constatadas dos trabalhos preditivos. No Brasil, as pesquisas com amebas testáceas ainda estão em processo de desenvolvimento, concentradas em apenas algumas regiões. Entretanto, o aumento no número de publicações nos últimos anos possibilita a prev...

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“…Ciliate species richness is, in general, favoured by the occurrence of macrophyte banks (Song, 2000b), especially the more diverse ones, which support higher species richness and abundance of non-planktonic organisms (Karus et al, 2014), contributing to the increment of species of the planktonic community. The massive contribution of non-planktonic organisms in the pelagic compartment was also observed in studies approaching the zooplankton community in the Upper Paraná River floodplain (Alves et al, 2010;Bonecker et al, 1998;Lima et al, 1998), which evidenced that the faunal exchange between lake compartments occurred mainly during floods due to greater habitat connectivity, leading to the presence of both planktonic and non-planktonic species within the community.…”

Section: Discussionmentioning

confidence: 84%

Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake

et al. 2017

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Cite as: Pauleto, G.M. et al. Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake. Acta Limnologica Brasiliensia, 2017, vol. 29, e107. Abstract: Aim: We aimed to evaluate the variation in planktonic ciliate species composition in different strata of the Guaraná Lake, encompassing high and low water periods, at the Upper Paraná River floodplain. Methods: Samplings were collected monthly between March 2007 and February 2008, from the epilimnion, metalimnion and hypolimnion. Ciliates samples were filtered using a plankton net of 10µm mesh size and identified in vivo under an optical microscope. Results: Among 112 species identified, 13 were found exclusively during the high water periods and 39 during the low water period. Results of nonparametric extrapolation indices evidenced that the observed richness represented between 70% and 90% of the estimated richness. Regarding the variation in species composition, Beta1 index showed that the alteration in composition between strata during the low water period was slightly greater than that registered during high waters. Cluster analysis evidenced a higher dissimilarity in ciliate species composition between periods than among the different strata. The greatest variation in species composition was verified during the distinct hydrological periods, whereas no significant differences were observed for the different strata analysed. Conclusions: We found that in the pelagic compartment, ciliate species composition changed significantly between hydrological periods, and a higher similarity in species composition among strata was observed during the high water period. Therefore, alterations in the vertical distribution seem to be related to the homogenizing effect of the floods in the water column stability.Keywords: protist; plankton; species richness; diversity; freshwater.Resumo: Objetivo: Avaliou-se a variação na composição de espécies de ciliados, em diferentes estratos na lagoa do Guaraná, englobando períodos de águas altas e baixas, na planície de inundação do alto Rio Paraná. Métodos: As amostragens foram realizadas mensalmente entre março de 2007 e fevereiro de 2008, em três diferentes profundidades: epilimínio, metalimínio e hipolimínio. Depois de concentradas as amostras em rede de plâncton (10µm), os organismos foram identificados in vivo 2 Pauleto, G.M. et al.

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Biodiversity of testate amoebae (Arcellinida and Euglyphida) in different habitats of a lake in the Upper Paraná River floodplain

Cited by 38 publications

References 14 publications

Local factors affecting the testate amoeba community (Protozoa: Arcellinida; Euglyphida) in a neotropical floodplain

Local factors affecting the testate amoeba community (Protozoa: Arcellinida; Euglyphida) in a neotropical floodplain

<b>Advances in studies on testate amoebae (Arcellinida and Euglyphida): a scientometric approach</b> - doi: 10.4025/actascibiolsci.v35i4.18184

Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake

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