Environmental Factors Influencing Distribution and Abundance of Trichopteran Larvae in Central Brazilian Mountain Streams

Bispo, Pitágoras da Conceição; Oliveira, Leandro Gonçalves; Crisci-Bispo, Vera L.; Sousa, Kuillder

doi:10.1080/01650520412331271710

Cited by 23 publications

(29 citation statements)

References 6 publications

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“…(Tables 1 and 2). Oliveira et al (1999), Oliveira & Bispo (2001) and Bispo et al (2004) recorded other six genera in Rio das Almas Basin (Atopsyche Banks, Hydroptila Dalman, Atanatolica Mosely, Setodes Rambur, Polycentropus Curtis and Xiphocentron Brauer), that were not resampled during field work, but were considered in the totals for the region. Thus, the actual knowledge about caddisflies is 37 genera (12 families) in Goiás State, Brazil.…”

Section: Resultsmentioning

confidence: 99%

“…Recent contributions to the knowledge about the Trichoptera diversity reflected an increase in genera recorded in Goiás from five ) to 33 genera (six new records in Oliveira et al (1999), 11 in Oliveira & Bispo (2001), two in Bispo et al (2004), two in Shuvartz et al (2005), six in MartinsSilva et al (2008) and one in Calor (2008a)). However, as pointed by Oliveira & Froehlich (1997), the ecological and taxonomic knowledge about the Trichoptera in Brazilian Savanna Streams is still incipient.…”

Section: Introductionmentioning

confidence: 99%

“…The larvae were identified to genus according to: Marshal (1979), Wiggins (1996a,b), Oliveira (2006), Morse & Holzenthal (2006), Calor (2008b) and Calor & Froehlich (2008). This paper also considers data from Oliveira et al (1999), Oliveira & Bispo (2001) and Bispo et al (2004) in the total number. Genus preference for a certain microhabitat was analyzed by calculating the relative proportion of observations on the taxon sampling.…”

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Trichoptera Kirby (Insecta) immature fauna from Rio das Almas Basin and Rio Paranã, Goiás State, Brazil, with new records for some genera

2011

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This paper deals with the Trichoptera immature fauna collected in 101 streams in Rio das Almas Basin during August-October 2008 and in Rio Paranã, Iaciara-GO municipality, on August 2003, using kick-nets with 0.025 m 2 of opening and 2 mm mesh. We record four new genera for Goiás State, expanding records of genera from 33 to 37 and contributing to the Trichoptera fauna knowledge in Central Brazil.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Trichoptera Kirby (Insecta) immature fauna from Rio das Almas Basin and Rio Paranã, Goiás State, Brazil, with new records for some genera

2011

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“…This can be obser ved in many lar vae of the Tanytarsini tribe (Sanseverino & Nessimian 2007 1 ), represented in this study by eight taxa, of which Rheotanytarsus was predominant (91.75 %). These larvae build tubes to colonize hard and clean sur faces to which they can attach themselves and fi lter the food carried by the current (Kikuchi & Uieda 2005 Although increased rainfall is a determining factor of the variation of the benthic fauna structure in tropical streams (Diniz-Filho et al 1998, Oliveira & Froehlich 1997b, Bispo et al 2004, Abílio et al 2007, Aburaya & Callil 2007, the results of this study indicate that overall stones provide a stable substrate for Chironomidae fauna, making them important components of the lotic ecosystem. Researchers studying the conservation and management of natural areas should consider the heterogeneity of lotic systems, reflected by the variety of substrates, including stones (10 to 25 cm in diameter), which constitute a habitat suitable for benthic organisms, as demonstrated in this study for Chironomidae larvae.…”

Section: Discussionmentioning

confidence: 99%

“…Since increase in rainfall has been indicated as one of the main factors affecting fauna in tropical lotic systems (Bispo et al 2004, Ribeiro & Uieda 2005, the presence of substrates that are more stable during periods of increased water fl ow is important for the stability of the benthic community in streams (Allan 1995).…”

Section: Introductionmentioning

confidence: 99%

Chironomidae (Insecta, Diptera) associated with stones in a first-order Atlantic Forest stream

Rosa

Vasques

Alves

2013

Rev. chil. hist. nat.

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Stones are stable substrates in streams, usually sheltering high richness and abundance of invertebrates. To investigate the structure of the Chironomidae assemblages associated with stones in a fi rst-order stream located in an Atlantic Forest reserve in two periods of the year, stones with diameters from 10 cm to 25 cm were collected along a stretch of 100 m in riffl e areas, during three months in the dry season and three months in the rainy season. The structure of the community was analyzed for each period through calculation of observed richness, Shannon's diversity (H'), and Pielou's evenness. The ordination of the samples from the dry and rainy seasons was evaluated by detrended correspondence analysis (DCA) and the presence of indicator species in the seasons was tested by IndVal analysis. The similarity in the faunistic composition between the periods was checked by ANOSIM. The results showed that, in general, the water velocity and rainfall were the abiotic variables that most strongly explained the abundance of larvae in the two periods studied, but the increase in these two parameters did not produce any signifi cant effect on the richness and abundance of the fauna, suggesting stability of the stones for the Chironomidae community. There was a signifi cant change in the faunistic composition (ANOSIM) and some samples had a stronger relationship with one of the seasons analyzed (DCA). The IndVal analysis indicated the characteristic taxa of each period, suggesting different responses to rainfall regimes. Besides this, Orthocladiinae were more abundant during the rainy season, while Chironomini was more abundant in the dry season. This study de monstrated the importance of the stones present in the stream channel as habitats for Chironomidae fauna, mainly in periods of high rainfall and water fl ow.Key words: aquatic insects, lotic systems, rainfall variation, substrates. RESUMENLas piedras forman un sustrato estable en los arroyos, albergan usualmente alta riqueza y abundancia de invertebrados. Se evaluó la estructura de la fauna de Chironomidae asociada a las piedras de un arroyo de primer orden ubicado en una reserva de Mata Atlántica. Para ello se recolectaron 180 piedras de 10 cm a 25 cm de diámetro a lo largo de un trecho de 100 m en área de corredera, durante tres meses del periodo seco y tres meses del periodo lluvioso. La estructura de la comunidad fue analizada para cada periodo a través del cálculo de riqueza taxonómica observada, diversidad de Shannon (H') y la equidad de Pielou (E), al respecto. La ordenación de las muestras de las estaciones seca y lluviosa fue evaluada por análisis de correspondencias sin tendencia (DCA) y la presencia de especies indicadoras de los períodos se ensayó por análisis IndVal. La similitud en la composición de la fauna entre los períodos se comprobó mediante el análisis de ANOSIM. Los resultados muestran que en general la disminución del fl ujo y la precipitación fueron las variables abióticas que más explicaron la abundancia de larvas en los dos pe...

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When phylogeny and ecology meet: Modeling the occurrence of Trichoptera with environmental and phylogenetic data

Godoy

Camargos

Lodi

2018

Ecology and Evolution

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Ecological studies are increasingly considering phylogenetic relationships among species. The phylogeny is used as a proxy or filter to improve statistical tests and retain evolutionary elements, such as niche conservation. We used the phylogenetic topology to improve the model for occurrence of Trichoptera genera in Cerrado (Brazilian Savanna) streams. We tested whether parameters generated by logistic models of occurrence, using phylogenetic signals, are better than models generated without phylogenetic information. We used a model with Bayesian updating to examine the influence of stream water pH and phylogenetic relationship among genera on the occurrence of Trichoptera genera. Then, we compared this model with the logistic model for each Trichoptera genus. The probability of occurrence of most genera increased with water pH, and the phylogeny‐based explicit logistic model improved the parameters estimated for observed genera. The inferred relationship between genera occurrence and stream pH improved, indicating that phylogeny adds relevant information when estimating ecological responses of organisms. Water with elevated acidity (low pH values) may be restrictive for the occurrence of Trichoptera larvae, especially if the regional streams exhibit neutral to alkaline water, as is observed in the Cerrado region. Using phylogeny‐based modeling to predict species occurrence is a prominent opportunity to extend our current statistical framework based on environmental conditions, as it enables a more precise estimation of ecological parameters.

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Environmental Factors Influencing Distribution and Abundance of Trichopteran Larvae in Central Brazilian Mountain Streams

Cited by 23 publications

References 6 publications

Trichoptera Kirby (Insecta) immature fauna from Rio das Almas Basin and Rio Paranã, Goiás State, Brazil, with new records for some genera

Trichoptera Kirby (Insecta) immature fauna from Rio das Almas Basin and Rio Paranã, Goiás State, Brazil, with new records for some genera

Chironomidae (Insecta, Diptera) associated with stones in a first-order Atlantic Forest stream

When phylogeny and ecology meet: Modeling the occurrence of Trichoptera with environmental and phylogenetic data

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