Contrasting land uses affect Chironomidae communities in two Brazilian rivers

Sonoda, K. C.; Matthaei, Christoph D.; Trivinho‐Strixino, Susana

doi:10.1127/1863-9135/2009/0174-0173

Cited by 8 publications

(12 citation statements)

References 30 publications

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“…In our study, KruskalWallis test indicated no statistical differences, but the Box-and-Whiskers plots pointed out the high abundance of chironomids compared to reference and sugar cane streams. Other studies that found similar results (Buss et al, 2002;Niyogi et al, 2007;Sonoda et al, 2009) indicated that it was related to the increasing in the amount of detritus, main food item to most species .…”

Section: Discussionsupporting

confidence: 73%

“…Similar studies showed greater richness in forested streams, followed by sugar cane and pasture (Corbi and Trivinho-Strixino, 2008), while others found no statistical difference (Niyogi et al, 2007;Sonoda et al, 2009). Similar to ours results were reported by Lenat (1983), which indicated that moderately impacted sites with high organic matter content favor tolerant Chironomidae because possible competitors such as Ephemeroptera and Trichoptera have difficulties in colonizing such sites.…”

Section: Discussionmentioning

confidence: 66%

“…The material of each stream was processed in a maximum of two days after sampling. Strixino (2008), Sanseverino and Nessimian (2001), Sonoda et al (2009), Galizzi et al (2012.…”

Section: Sampling and Identification Of Chironomidae Larvaementioning

confidence: 99%

“…Some genera are remarkably resistant to organic enrichment (e.g. Chironomus), but several studies have reported that environmental responses among species are varied, indicating the need for further studies to establish patterns (Lenat, 1983;Corbi, 2006;Corbi and Trivinho-Strixino, 2008;Sonoda et al, 2009). Chironomidae taxonomists argue that the family has sensitive and tolerant genera, with characteristics that can reflect the panorama of aquatic systems and, therefore, more efforts should be made to study the differences in the faunal compositions of reference and impacted areas (Rosenberg, 1992;Rabeni and Wang, 2001;Corbi and Trivinho-Strixino, 2006;TrivinhoStrixino, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Taxonomic composition and feeding habits of Chironomidae in Cerrado streams (Southeast Brazil): impacts of land use changes

Saito

Fonseca-Gessner

2014

Acta Limnol. Bras.

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Abstract:The Chironomidae family is the most abundant and diverse member of the benthic community in streams, yet their identification is still neglected in many papers. It is considered a family tolerant to environmental impacts and with homogeneous feeding habit. Aim: To compare the richness, abundance and taxonomic composition of Chironomidae in Cerrado streams under different land uses as well as the feeding habit differences between genera of reference areas, sugar cane culture and pasture. Methods: We selected seven streams in each land use and sampled six units using Surber sampler. The material was transported live for laboratory processing. Results: Our results showed no significant differences in abundance and richness of Chironomidae among different land use, but we observed greater average values of abundance and richness in streams impacted by pasture. We found a distinct taxonomic composition between reference streams and impacted streams, both sugar cane and pasture. Stenochironomus was the most representative genus in reference areas, while Parametriocnemus was in sugar cane culture and Tanytarsus in pastures. The only statistically different feeding pattern found were between Cerrado streams and sugar cane for plant tissues, reflecting the greater abundance of Stenochironomus in Cerrado and among Cerrado streams and pasture for microalgae. Conclusions: We conclude that the conversion of natural areas in monocultures and pastures directly impact streams by modifying the taxonomic structure of Chironomidae. In contrast we did not observe a clear change in feeding patterns, because in all streams the diet pattern was mostly detritivorous.Keywords: aquatic insects, nonbiting midges, environmental impacts, faunal composition, functional groups. Resumo:A família Chironomidae é a mais abundante e diversa constituinte da comunidade bentônica em riachos e ainda assim sua identificação é negligenciada em muitos trabalhos. É considerada uma família tolerante aos impactos ambientais e com uma alimentação homogênea. Objetivo: Comparar a riqueza, a abundância e a composição taxonômica de Chironomidae em riachos de Cerrado sob diferentes usos-de-solo, bem como as diferenças alimentares entre os gêneros nos riachos em áreas referência e impactadas pela cultura de cana-de-açúcar e pela pastagem. Métodos: Selecionamos sete riachos para cada uso de solo, nos quais coletamos seis unidades com o amostrador Surber. O material foi transportado vivo para processamento em laboratório. Resultados: Nossos resultados não indicaram diferenças significativas na abundância e na riqueza de Chironomidae entre os riachos dos diferentes usos-de-solo, mas observamos uma abundância média e riqueza média maior em riachos impactados pela pastagem. Nós encontramos composições faunísticas distintas entre os riachos referência e os impactados, tanto pela cana-de-açúcar como pela pastagem. Stenochironomus foi o gênero mais representativo em áreas preservadas, enquanto Parametriocnemus foi na monocultura de cana de açúcar e Tanytarsus na ...

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Section: Discussionsupporting

confidence: 73%

Section: Discussionmentioning

confidence: 66%

“…The material of each stream was processed in a maximum of two days after sampling. Strixino (2008), Sanseverino and Nessimian (2001), Sonoda et al (2009), Galizzi et al (2012.…”

Section: Sampling and Identification Of Chironomidae Larvaementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Taxonomic composition and feeding habits of Chironomidae in Cerrado streams (Southeast Brazil): impacts of land use changes

Saito

Fonseca-Gessner

2014

Acta Limnol. Bras.

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“…Há vantagens e desvantagens no uso dos bioindicadores dentre os quais os macroinvertebrados são os mais usados nos estudos ecológicos ambientais (Fonseca-Gessner e Guereschi, 2000;Nelson 2000). Alguns estudos foram conduzidos no Brasil visando entender a relação entre as alterações no uso do solo e sua influência sobre os componentes biológicos da água (Gerhard, 2005;Sonoda, 2005). Entretanto, poucos estudos em todo o mundo, incluindo o Brasil, que analisam a comunidade de insetos aquáti-cos foram realizados em rios de mé-dio e grande porte (Karr et al, 2000;Sonoda et al, 2009;Soulsby et al, 2001).…”

Section: Introductionunclassified

Relação entre uso do solo e composição de insetos aquáticos de quatro bacias hidrográficas do Estado de São Paulo

Sonoda

Vettorazzi

Ortega

2012

Neotropical Biology and Conservation

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ResumoAs comunidades de insetos aquáticos de quatro bacias hidrográficas sob diferentes graus de ocupação humana foram analisadas em relação aos usos do solo, à declividade do terreno e às variáveis físicas e químicas da água. As bacias hidrográficas estudadas foram Alto Paranapanema, Peixe, Aguapeí e São José dos Dourados. Amostras de insetos aquáticos foram coletadas utilizando-se cestos com substrato artificial, entre agosto e outubro de 2002. Foram colocadas 18 repetições em cada rio, e os insetos amostrados foram identificados em nível de família e contados. Os dados foram analisados em números absolutos e percentuais de indivíduos e de táxons, e também índices comunitários. Informações sobre as bacias hidrográficas foram geradas a partir de mapas digitais. Foram identificadas 32 famílias, Elmidae, Leptohyphidae, Leptophlebiidae, Chironomidae, Simuliidae e Hydropsychidae apresentaram dominância. Dez variáveis físicas e químicas da água apresentaram relação direta sobre os rios; porcentagens dos usos do solo e das declividades foram calculadas. Utilizou-se a correlação de Pearson, Análise de Variância (ANOVA) e análise de correspondência para integrar os dados abióticos e biológicos. O estudo mostrou a importância do uso do solo imediatamente adjacente ao local de coleta como o fator de maior influência sobre a entomofauna.Palavras-chave: ambientes lóticos, macroinvertebrados aquáticos, rios, sudeste do Brasil, vegetação ripária. AbstractFour watersheds with different degrees of human occupation had their communities of aquatic insects analyzed in relation to the landuses, terrain slope as well as chemical and physical variables of water. The watersheds studied were Alto Paranapanema, Peixe, Aguapei and São José dos Dourados. Samples of aquatic insects were taken with baskets filled with artificial substrates, during August and October/2002. Eighteen samples were taken from each river and the aquatic insects were identified until family level and counted. To analyze the results, total and percentage numbers of individuals and taxons were used, as well as community indeces. Information about the watersheds were generated from digital maps. Thirty-two families were identified, Elmidae, Leptohyphidae, Leptophlebiidae, Chironomidae, Simuliidae and Hydropsychidae showed numeric dominance. Ten chemical and physical variables tested were able to characterize the rivers; percentages of the main landuses and terrain slope were calculated. Pearson's correlation index, analysis of variance and analysis of correspondence were used in order to establish the relationship between abiotic components and the entomofauna. The study showed that the land use condition immediately adjacent to the sampling site is the most important factor influencing that fauna.

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Morphological traits and vertical distribution of hyporheic chironomid larvae in Atlantic Forest streams

Mugnai

Serpa-Filho²,

Nessimian

et al. 2019

Tropical Zoology

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Contrasting land uses affect Chironomidae communities in two Brazilian rivers

Cited by 8 publications

References 30 publications

Taxonomic composition and feeding habits of Chironomidae in Cerrado streams (Southeast Brazil): impacts of land use changes

Taxonomic composition and feeding habits of Chironomidae in Cerrado streams (Southeast Brazil): impacts of land use changes

Relação entre uso do solo e composição de insetos aquáticos de quatro bacias hidrográficas do Estado de São Paulo

Morphological traits and vertical distribution of hyporheic chironomid larvae in Atlantic Forest streams

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