The influence of habitat integrity and physical-chemical water variables on the structure of aquatic and semi-aquatic Heteroptera

Dias-Silva, Karina; Cabette, Helena Soares Ramos; Juen, Leandro; Marco, Paulo De

doi:10.1590/s1984-46702010000600013

Cited by 81 publications

(65 citation statements)

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“…Nos ambientes brejosos os substratos consistiram principalmente de macrófitas submersas, raízes e matéria em decomposição misturada à areia. As amostras foram obtidas em transecções fixas de 100 m, divididas em 20 segmentos de cinco metros, sendo as amostras obtidas através de um coador de 18 cm de diâmetro e malha de 0,05 mm, replicando-se três vezes uma porção do substrato presente ao longo da margem de cada segmento (modificado de Ferreira-Peruquetti & de MarCo, 2002;shiMano et al, 2010;dias-silva et al, 2010). O material foi separado em campo e conservado em álcool etílico a 85%.…”

Section: Methodsunclassified

“…A despeito de sua importância para a dinâmica energética dos ambientes onde vivem, levantamentos da entomofauna aquática são escassos na região leste de Mato Grosso (Juen et al, 2007;dias-silva et al, 2010;shiMano et al, 2010;nogueira & Cabette, 2011). Poucos estudos têm avaliado os efeitos dos impactos antrópicos sobre a composição e estrutura das comunidades de Trichoptera (oliveira & FroehliCh, 1997;oliveira & bisPo, 2001;bisPo et al, 2006), e um número ainda mais reduzido têm investigado a fauna de áreas alagadas (MaltChik et al, 2009).…”

Section: Palavras-chaveunclassified

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Estrutura e composição da comunidade de Trichoptera (Insecta) de rios e áreas alagadas da bacia do rio Suiá-Miçú, Mato Grosso, Brasil

Nogueira

Cabette

Juen

2011

Iheringia, Sér. Zool.

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ABSTRACT. Structure and composition of Trichoptera (Insecta) community in streams and wetlands of Suiá-Miçú River Basin, Mato Grosso, Brazil. The composition, abundance and species diversity of Trichoptera immatures was studied in 12 tributaries of Suiá-Miçú River Basin, a mosaic of wetlands, streams and rivers tributary of the Xingu River in the Cerrado-Amazonian Forest transition zone in Mato Grosso, Brazil. The varying sizes, flow types and conservation levels of the tributaries were sampled through three periods between 2007 and 2008 by the use of fixed transects along the environments margins. A total of 867 larvae was collected (divided in seven families, 17 genera, 49 species/ morphospecies) with the most abundant and rich families being Hydropsychidae and Leptoceridae and the most abundant species Leptonema sparsum (n = 370). There has been loss of species richness in impacted, large and lentic environments. Composition variations related to the flow, the vegetation type and the interaction between conservation levels and flow was detected. Conservation levels, width and the quantitative habitat integrity index (HII) did not influence the Trichoptera composition. These results may encourage further investigation of impact effects on aquatic insect compositions and pattern of distribution in the transition area between the Cerrado and the Amazonian Forest.KEYWORDS. Diversity, larvae, stream ecology, biomonitoring, Xingu River. RESUMO.A composição, abundância e riqueza de Trichoptera imaturos foram estudadas em 12 tributários da bacia do rio Suiá-Miçú, afluente do rio Xingu, um mosaico de áreas alagadas, córregos e rios na área de transição Cerrado -Floresta Amazônica na região leste de Mato Grosso, Brasil. Larvas de insetos aquáticos foram amostradas em transectos nas margens de tributários lênticos e lóticos com tamanho e níveis de conservação variáveis, em três períodos entre 2007 e 2008. Foram coligidas 867 larvas (sete famílias, 17 gêneros, 45 morfoespécies), sendo Hydropsychidae e Leptoceridae as famílias mais abundantes e ricas, e Leptonema sparsum a espécie mais abundante (n=370). Houve perda de riqueza de espécies em ambientes impactados e naqueles de maior porte ou de fluxo lêntico. Foi possível detectar variações na composição relacionadas ao fluxo, tipo de vegetação e na interação entre o nível de conservação e fluxo. O nível de conservação, a largura e o índice quantitativo de integridade de hábitat (IIH) não influenciaram a composição de Trichoptera isoladamente. Estes resultados podem fomentar novas investigações dos efeitos dos impactos sobre a composição da entomofauna aquática na transição entre o Cerrado e a Floresta Amazônica. PALAVRAS-CHAVE.Diversidade, larvas, ecologia de riachos, biomonitoramento, rio Xingu.

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Section: Methodsunclassified

Section: Palavras-chaveunclassified

Estrutura e composição da comunidade de Trichoptera (Insecta) de rios e áreas alagadas da bacia do rio Suiá-Miçú, Mato Grosso, Brasil

Nogueira

Cabette

Juen

2011

Iheringia, Sér. Zool.

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“…This index is based on the measurement of several visually assessed parameters related to land use, riparian zone conservation, streambed characteristics, and characteristics of stream channel morphology related to margin and streamlet bed structure. Then, the index is directly related to the degree of environmental conservation and has been successfully used in other studies to evaluate the integrity in aquatic systems (Dias-Silva et al, 2010;Shimano et al, 2010;Juen and De Marco, 2011;Nogueira et al, 2011;Souza et al, 2011).…”

Section: Data Samplingmentioning

confidence: 99%

“…Habitat loss changes the biological structure of rivers, directly affecting the composition of aquatic macroinvertebrate and their food resources (Bispo et al, 2006;Nessimian et al, 2008;Dias-Silva et al, 2010). The abundance of some species varies with changes in environmental integrity and even reaching extinction-risk levels (Angermeier and Karr, 1994).…”

Section: Introductionmentioning

confidence: 99%

“…For example, the environmental integrity and complexity strongly affect the community of larval Odonata (Juen et al, 2007) and a richness of Gerromorpha (Dias-Silva et al, 2010), and Souza et al (2010) observed that physical changes were the main causes of disruption of beta diversity of Baetidae. Shimano et al (2010) considered that the removal of gallery forest and dams caused the species loss and decrease in abundance of Ephemeroptera.…”

Section: Introductionmentioning

confidence: 99%

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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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A synthesis of land use impacts on stream biodiversity across metrics and scales

Petsch

Blowes

Melo

et al. 2021

Ecology

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While land use intensification is a major driver of biodiversity change in streams, the nature of such changes, and at which scales they occur, have not been synthesized. To synthesize how land use change has altered multiple components of stream biodiversity across scales, we compiled data from 37 studies where comparative data were available for species' total and relative abundances from multiple locations including reference (less impacted) streams to those surrounded by different land use types (urban, forestry, and agriculture). We found that each type of land use reduced multiple components of within-stream biodiversity across scales, but that urbanization consistently had the strongest effects. However, we found that β-diversity among streams in modified landscapes did not differ from β-diversity observed among reference streams, suggesting little evidence for biotic homogenization. Nevertheless, assemblage composition did experience considerable species turnover between reference and modified streams. Our results emphasize that to understand how anthropogenic factors such as land use alter biodiversity, multiple components of biodiversity within and among sites must be simultaneously considered at multiple scales.

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The influence of habitat integrity and physical-chemical water variables on the structure of aquatic and semi-aquatic Heteroptera

Cited by 81 publications

References 74 publications

Estrutura e composição da comunidade de Trichoptera (Insecta) de rios e áreas alagadas da bacia do rio Suiá-Miçú, Mato Grosso, Brasil

Estrutura e composição da comunidade de Trichoptera (Insecta) de rios e áreas alagadas da bacia do rio Suiá-Miçú, Mato Grosso, Brasil

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

A synthesis of land use impacts on stream biodiversity across metrics and scales

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