Composition and diversity of Ephemeroptera (Insecta) nymph communities in the middle section of the Jacuí River and some tributaries, southern Brazil

Siegloch, Ana Emília; Froehlich, Cláudio G.; Kotzian, Carla Bender

doi:10.1590/s0073-47212008000400002

Cited by 25 publications

(25 citation statements)

References 26 publications

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“…The high richness of Ephemeroptera found in this study is highlighted by comparison with other studies of different environments and regions of Brazil, based only on sampling nymphs (e.g., Crisci-Bispo et al 2007;Bispo & Oliveira 2007;Siegloch et al 2008;Righi-Cavallaro et al 2010). These re-Revista Brasileira de Entomologia 56(4): 473-480, dezembro, 2012 sults emphasize that the mountainous regions of São Paulo State harbor a high diversity of aquatic insects, as demonstrated also in studies of Trichoptera (Spies & Froehlich 2009) and Coleoptera (Segura et al 2012).…”

Section: Discussionsupporting

confidence: 75%

Diversity of Ephemeroptera (Insecta) of the Serra da Mantiqueira and Serra do Mar, southeastern Brazil

Siegloch¹,

Froehlich²,

Spies³

2012

Rev. Bras. entomol.

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ABSTRACT. Diversity of Ephemeroptera (Insecta) of the Serra da Mantiqueira and Serra do Mar, southeastern Brazil. The aim of this study was to inventory the mayfly fauna, based on nymphal and alate stages, in Serra da Mantiqueira and in Serra do Mar, São Paulo State, as well as to present information about habitats used by the genera. Nymphs were collected in several streams and mesohabitats with a Surber sampler and the winged stages with light attraction methods, entomological nets, and Malaise traps. In all, eight families and 33 genera were recorded, representing a very significant portion of the Brazilian fauna (80% of families and 49% of genera). Furthermore, it was possible to identify 11 species, of which two are new records for the state: Tricorythodes santarita Traver and Caenis reissi Malzacher. Despite the high diversity recorded, the accumulation curves presented an ascending form, indicating an increase in the number of genera with additional sampling effort. The high richness found in these areas are in agreement with the high biodiversity of the Atlantic Forest biome and the sampling effort employed, which included the use of different methods, the collection of both nymphs and winged stages, and the sampling of a large area with diverse streams and habitats.

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Section: Discussionsupporting

confidence: 75%

Diversity of Ephemeroptera (Insecta) of the Serra da Mantiqueira and Serra do Mar, southeastern Brazil

Siegloch¹,

Froehlich²,

Spies³

2012

Rev. Bras. entomol.

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“…The sensitivity of Ephemeroptera to physical, chemical and physical-chemical changes of an aquatic system has been well described in the literature (e.g., Brittain, 1982;Salles et al, 2004;Domı´nguez et al, 2006). Therefore, Ephemeroptera is regarded as a useful research subject in studies with different ecological approaches (e.g., Francischetti et al, 2004;Goulart and Callisto, 2005;Buss and Salles, 2007;Siegloch et al, 2008;Shimano et al, 2010;Souza et al, 2010). According to Brittain (1982), however, mayflies have limited longdistance dispersal abilities due to their fragile nature and short adult life span, which may effectively contribute to increasing the effect of space in community structuring.…”

Section: Introductionmentioning

confidence: 99%

Environmental and spatial processes determining Ephemeroptera (Insecta) structures in tropical streams

Shimano

Juen

Salles

et al. 2013

Ann. Limnol. - Int. J. Lim.

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-Community diversity is expected to reflect variations in local conditions but, recently, ecologists have started to realize that local diversity is also under pressure from global processes. As a result, the traditional view of community structure based on local interspecific interactions was replaced by the idea that community structure is a result of multiple processes acting in different spatial scales. This study is aimed at quantifying the relative importance of spatial, environmental and spatially structured processes on Ephemeroptera community in Cerrado streams in Brazil. Thirty-four rivers and streams in the Brazilian state Mato Grosso were sampled. Ephemeroptera species composition, based on abundance and presence data, was evaluated in relation to niche and neutral predictors by using a partial redundancy analysis (pRDA). Results obtained through the pRDA indicated that both environmental and spatial processes influenced Ephemeroptera abundance. On the other hand, only environmental processes showed effects on community patterns when using species presence data from preserved, altered and large streams and also when looking only at the preserved sites. When streams larger than 20 m were excluded from analysis, both environmental and spatially processes showed influence on Ephemeroptera composition. Adjusted R 2 values were higher for environmental than for spatial processes in all analyses. The relatively high influence of both environmental processes and stream width in the analyses highlights the sensitivity of mayflies assemblies to environmental variation, and emphasizes the importance of local processes, as predicted by niche theory, while neutral processes act to a lesser extent on the structure of the studied communities.

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“…Quando consideramos as comunidades de invertebrados dos ecossistemas límnicos, o maior número de trabalhos é das regiões sudeste, sul e norte, refletindo a distribuição dos pesquisadores (e.g. KIKUCHI & UIEDA, 1998;FRANCISCHETTI et al, 2004;CRISCI-BISPO et al, 2007;FIDELIS et al, 2008;SIEGLOCH et al, 2008). Na região centro-oeste, pouco se tem publicado (e.g.…”

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Composição e distribuição da fauna de Ephemeroptera (Insecta) em área de transição Cerrado-Amazônia, Brasil

Shimano

Cabette

Salles

et al. 2010

Iheringia, Sér. Zool.

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ABSTRACT. Composition and distribution of Ephemeroptera (Insecta) in Cerrado-Amazônia transition area, Brazil. The objective of this study was to respond if exist a pattern on the spatial distributions of Ephemeroptera nymphs in different streams and rivers from Suiá-Miçú Basin, MT, and how the streams are classifying according to the species composition. Were sample 12 streams and rivers, in three periods of the year. Were collected 1,356 individuals, distributed in seven families, 31 genus and 42 species and/or morphospecies. The most abundant locals were semi-lentics and with few shaded suggering that most light in the system offer, allochthonous material and autochthonous material like food resources. The greater estimates richness was found in lotic places, emphasizing that the Ephemeroptera presents greater richness in these places, once water current is essential for organic matter transporting. So much in the grouping analysis (TWINSPAM) as in the ordination (DCA) was observed the separation of lotic and semi-lentic environments as for species composition. It had a gradient in the composition similarity of lotic and small streams for lotic and big stream and for last, semilentics. The results of this study show that the physic structure of aquatic environments affect species composition. In that way, retreat of riparian vegetation and streams dam up can take significant losses in the diversity. KEYWORDS.Aquatic insects, Suiá-Miçú River Basin, lotic and semi-lentic environments, nymphs. RESUMO.O objetivo deste trabalho foi responder se existe padrão na distribuição espacial das ninfas de Ephemeroptera em diferentes córregos e rios da bacia do Rio Suiá-Miçú, MT, e como os córregos estudados estão classificados de acordo com a composição de espécies. Na coleta foram amostrados 12 córregos e rios, em três períodos do ano. Foram coletados 1356 indivíduos, distribuídos em sete famílias, 31 gêneros e 42 espécies e/ou morfoespécies. Os locais mais abundantes foram ambientes semi-lênticos, com pouco sombreamento no leito, sugerindo que a maior entrada de luz disporia, além do material alóctone, material autóctone como fonte de alimento. A maior riqueza de espécie e/ou morfoespécie, estimada, foi em ambientes lóticos enfatizando que os Ephemeroptera apresentam maior riqueza nestes locais uma vez que a correnteza é essencial para transportar a matéria orgânica particulada. Tanto na análise de agrupamento (TWINSPAM) como na ordenação (DCA) observou-se a separação entre ambientes lóticos e semi-lênticos quanto a composição de espécies. Percebeu-se um gradiente na similaridade de composição dos ambientes lóticos de pequeno porte para ambientes lóticos de grande porte e, por fim, os semi-lênticos. Os resultados deste estudo demonstram que a estrutura física dos ambientes aquáticos afeta a composição de espécies. Dessa forma, a retirada das matas ciliares e o represamento dos córregos podem levar à perdas significativas na diversidade. PALAVRAS-CHAVE.Insetos aquáticos, bacia do rio Suiá-Miçú, ambiente lótico e semi-lênt...

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Composition and diversity of Ephemeroptera (Insecta) nymph communities in the middle section of the Jacuí River and some tributaries, southern Brazil

Abstract: ABSTRACT. The taxonomic composition and diversity of assemblages of Ephemeroptera nymphs of four lotic environments in the central region of State of Rio Grande do Sul, a subtropical area in southern Brazil, were evaluated. Samplings were done monthly, with a Surber

Cited by 25 publications

References 26 publications

Diversity of Ephemeroptera (Insecta) of the Serra da Mantiqueira and Serra do Mar, southeastern Brazil

Diversity of Ephemeroptera (Insecta) of the Serra da Mantiqueira and Serra do Mar, southeastern Brazil

Environmental and spatial processes determining Ephemeroptera (Insecta) structures in tropical streams

Composição e distribuição da fauna de Ephemeroptera (Insecta) em área de transição Cerrado-Amazônia, Brasil

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