Distribuição de comunidades de insetos aquáticos no gradiente longitudinal de uma bacia fluvial no sudeste brasileiro

Baptista, Darcílio Fernandes; Dorvillé, Luís Fernando Marques; Soares, Lariessa; Buss, Daniel Forsin; Messimian, J. L.

doi:10.4257/oeco.1998.0501.14

Cited by 18 publications

(27 citation statements)

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“…As expected, Anacroneuria, Kempnyia and Paragripopteryx were indicative of riffle litter. Baptista et al (1998b) found that most Anacroneuria individuals preferred this substrate. Elmidae presented almost one half of the sampled individuals in riffle litter.…”

Section: Spatial Distributionmentioning

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: Spatial Distributionmentioning

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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“…4) were positively related with environmental integrity, but they were not considered good bioindicators (Merritt and Cummins, 1984;Cummins et al, 2005). Several studies postulated that these genera would be present in riffle areas, e.g., associated Polyplectropus (Martins-Silva et al, 2008), Chimarra (Wiggins, 1996) and Leptonema (Baptista et al, 1998). In our study site, these genera occurred in both preserved and altered environments, but the low abundance and narrow distribution of Chimarra sp.…”

Section: Discussionmentioning

confidence: 99%

Trichoptera as bioindicators of habitat integrity in the Pindaíba river basin, Mato Grosso (Central Brazil)

Pereira¹,

Cabette

Juen

2012

Ann. Limnol. - Int. J. Lim.

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“…Os Simuliidae são objetos de diversos estudos sobre controle (ARAÚJO-COUTINHO et al1988, REGIS et al 2000, epidemiologia (SHELLEY et al 1997, EATON et al 1998) e ecologia de ambientes lóticos (BAPTISTA et al 1998). Das 87 espécies de Simuliidae registradas no Brasil, 54 ocorrem na Região Sudeste (COSCARÓN 1991, CROSSKEY & HOWARD 1997, PEPINELLI et al 2003, GIL-AZEVEDO & MAIA-HERZOG 2004, HAMADA & PEPINELLI 2004, GIL-AZEVEDO et al 2005.…”

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Chave de identificação de pupas de Simuliidae (Diptera) do sudeste do Brasil

Gil-Azevedo¹,

Ferreira

Maia-Herzog³

2005

Rev. Bras. Zool.

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Neste trabalho é apresentada uma chave dicotômica de identificação de pupas de Simuliidae com registro de ocorrência para o Sudeste do Brasil. Nós incluímos as 49 espécies que apresentam a pupa descrita. Na chave, além de caracteres comumente usados (e.g. número dos filamentos branquiais, forma do ápice e forma do casulo), foram usados caracteres não usuais (largura e comprimento relativos dos filamentos branquiais; disposição espacial das brânquias; proporção entre comprimento da brânquia e comprimento do casulo; presença e posição do assoalho do casulo). É possível diferenciar 70% das espécies de Simuliidae do Sudeste do Brasil usando apenas caracteres da pupa. Este estágio, muitas vezes, é o único do qual se obtém uma identificação precisa.

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Distribuição de comunidades de insetos aquáticos no gradiente longitudinal de uma bacia fluvial no sudeste brasileiro

Cited by 18 publications

References 0 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

Trichoptera as bioindicators of habitat integrity in the Pindaíba river basin, Mato Grosso (Central Brazil)

Chave de identificação de pupas de Simuliidae (Diptera) do sudeste do Brasil

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