Ninfas de Thraulodes Ulmer, 1920 (Insecta: Ephemeroptera: Leptophlebiidae) ocorrentes no estado do Rio de Janeiro, Brasil

Da-Silva, Elidiomar Ribeiro

doi:10.1590/s1676-06032003000200006

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…This variability of particle size and current velocity coupled with low stability of the sediment may have been responsible for high species richness and low density of individuals found in gravel substrates. Among the Ephemeroptera indicators of gravel, Thraulodes itatiajanus lives in rocky mid-size streams with strong current, taking shelter among pebbles in the streambed (Da-Silva, 2003), whereas Traverhyphes and Tricorytopsis are found in areas with strong current between rocks and litter riffle . In this study the Thraulodes taxa had highest density in gravel.…”

Section: Functional Feeding Groupsmentioning

confidence: 99%

Spatial distribution and functional feeding groups of aquatic insect communities in Serra da Bocaina streams, southeastern Brazil

Oliveira

Nessimian

2010

Acta

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Aim: The aim of this paper was to study the spatial distribution and functional feeding structure of aquatic insect communities of 18 streams at different altitudes in Mambucaba River Basin, Serra da Bocaina, Southeastern Brazil; Methods: Samples were collected in two consecutive dry periods (August of 2003 and being sampled four substrate types in each stream: litter from riffles, litter from pools, rocks and gravel; Results: We identified 75,581 aquatic insect individuals belonging to 201 taxa. Most of the fauna was found in litter substrates (64%), and riffle litter substrate had the majority of the specimens (32,572 individuals). Gravel was the substrate with highest values of richness (29.84 taxa expected for 187 individuals; rarefaction method) and Shannon's diversity (H' = 2.370). Rock substrate showed the lowest richness (20.24 taxa). Distribution of taxa across substrates shows that only 28 taxa are restricted to a single substrate, while 78 taxa occurred in all substrates. The indicator analysis showed that 20 taxa were characteristic of pool litter, 25 of riffle litter, 22 of gravel and only nine to rock. In relation to organic and inorganic substrates, 29 taxa were characteristic of litter, and 17 of inorganic substrates. Cluster analysis based on Bray-Curtis dissimilarity index and UPGMA linkage method showed that aquatic insects were distributed according to substrate and food resource. In all substrates, the main functional feeding group was collector-gatherer (40.64%), and the least representative was shredder (6.67%). ANOVA and Tukey HSD tests showed that collector-gatherers and shredders were predominant in pool substrates, collector-filters in riffle substrate and scrapers in hard substrates; Conclusion: Ours results show that independently of stream or altitude, substrate of the same type have similar faunal assemblages. The abundance and relative proportion of the functional feeding group showed variation across habitats.Keywords: distribution, habitats, substrates, benthic macroinvertebrates.Resumo: Objetivo: O objetivo deste artigo foi estudar a distribuição espacial e a categorização funcional trófica da comunidade de insetos aquáticos de 18 riachos em diferentes altitudes na Bacia do Rio Mambucaba, Serra da Bocaina, Sudeste do Brasil; Métodos: As amostras foram coletadas em dois períodos secos consecutivos (agosto de 2003 e 2004), sendo coletados em quatro tipos de substratos: folhiço em correnteza, folhiço de fundo, pedras e cascalho; Resultados: Foram identificados 75.581 indivíduos de insetos aquáticos pertencentes a 201 táxons. Os substratos com folhiço concentraram a maior parte da fauna (64%), sendo o folhiço em correnteza o substrato com maior abundância de indivíduos (32.572). O cascalho apresentou os maiores valores de riqueza (29,84 táxons esperado em 187 indivíduos; método da rarefação) e diversidade de Shannon (H' = 2,370). A menor riqueza (20,24 táxons) foi observada no substrato pedra. A distribuição dos táxons entre os substratos mostrou 28 táxons restritos a um...

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Section: Functional Feeding Groupsmentioning

confidence: 99%

Spatial distribution and functional feeding groups of aquatic insect communities in Serra da Bocaina streams, southeastern Brazil

Oliveira

Nessimian

2010

Acta

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As espécies de ephemeroptera (insecta) registradas para o Brasil

Salles

Da-Silva²,

Hubbard

et al. 2004

Biota Neotrop.

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Abstract(The species of mayflies (Ephemeroptera: Insecta) recorded from Brazil). A checklist of the Brazilian Ephemeroptera fauna with all species, genera and families recorded from the country, including the states for which every species is reported, and the pertinent reference is presented. Comments on the status of knowledge of the Brazilian mayfly fauna are also provided. Up to date, 10 families, 63 genera, and 166 species are recorded. Baetidae and Leptophlebiidae have more than 50% of all records, while the North and Southeastern regions are significantly better studied than the other areas of the country.Key words: Brazil, mayflies, records, status of knowledge, South-America. Resumo(As espécies de Ephemeroptera (Insecta) registradas para o Brasil). Uma lista da fauna de Ephemeroptera do Brasil, com todas as espécies, gêneros e famílias registrados para o país é apresentada, incluindo os estados para os quais as espécies estão reportadas assim como a bibliografia pertinente. Comentários acerca do estado atual do conhecimento da fauna brasileira também são tecidos. Até o presente momento 10 famílias, 63 gêneros e 166 espécies estão registrados. As famílias Baetidae e Leptophlebiidae compreendem mais de 50% de todos os registros, enquanto as regiões Norte e Sudeste são significativamente melhor estudadas que as demais. Palavras

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Modelos de nicho ecológico fundamental para especies del género Thraulodes (Ephemeroptera: Leptophlebiidae: Atalophlebiinae)

Pérez-García¹,

Liria²

2013

Revista Mexicana de Biodiversidad

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Ninfas de Thraulodes Ulmer, 1920 (Insecta: Ephemeroptera: Leptophlebiidae) ocorrentes no estado do Rio de Janeiro, Brasil

Cited by 3 publications

References 4 publications

Spatial distribution and functional feeding groups of aquatic insect communities in Serra da Bocaina streams, southeastern Brazil

Spatial distribution and functional feeding groups of aquatic insect communities in Serra da Bocaina streams, southeastern Brazil

As espécies de ephemeroptera (insecta) registradas para o Brasil

Modelos de nicho ecológico fundamental para especies del género Thraulodes (Ephemeroptera: Leptophlebiidae: Atalophlebiinae)

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