Ephemeroptera, Plecoptera and Trichoptera assemblages in two Atlantic Rainforest streams, Southeastern Brazil

Abstract

Assemblages of Ephemeroptera, Plecoptera and Trichoptera (EPT) of rocky substrates were studied in two streams of the Intervales State Park. Monthly collections with a Surber sampler (10 random sampling units, 1m²) were carried out from September 1999 to September 2000 and quarterly from December 2000 to September 2001 in the Bocaina and Água Comprida Streams. The EPT fauna in the Bocaina Stream was more diversified and more abundant than in the Água Comprida Stream. The EPT fauna was quite different in the two streams both in composition as in functional aspects. The results of this study indicate that there was not a clear seasonal pattern in the temporal variation of density.

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

“…Another study (Couceiro et al, 2007) showed that Marilia was an indicator of non-impacted streams. The results also reinforce other evidence that species of Nectopsyche and Phylloicus are inhabitants of sites of high environmental heterogeneity (Crisci-Bispo et al, 2007). Specifically, Nectopsyche species occurs mainly in riffle areas (CrisciBispo et al, 2004) and Phylloicus species occurs in leaf litter in slow flowing sites, building shelter with pieces of these leaves (Pather, 2003).…”

Diversity of Ephemeroptera (Insecta) of the Serra da Mantiqueira and Serra do Mar, southeastern Brazil

“…The high richness of Ephemeroptera found in this study is highlighted by comparison with other studies of different environments and regions of Brazil, based only on sampling nymphs (e.g., Crisci-Bispo et al 2007;Bispo & Oliveira 2007;Siegloch et al 2008;Righi-Cavallaro et al 2010). These re-Revista Brasileira de Entomologia 56(4): 473-480, dezembro, 2012 sults emphasize that the mountainous regions of São Paulo State harbor a high diversity of aquatic insects, as demonstrated also in studies of Trichoptera (Spies & Froehlich 2009) and Coleoptera (Segura et al 2012).…”

“…In São Paulo, the number of studies on ecology, taxonomy, and biology of Ephemeroptera assemblages are increasing in recent years (e.g., Crisci-Bispo et al 2007;Polegatto & Froehlich 2003;Mariano & Polegatto 2011) and led to the current knowledge of biodiversity in the state. On the other hand, due to the increasing human occupation and exploitation of natural areas, faunal inventories especially those that include both immature and alates are relevant to the establishment of priority areas for biodiversity conservation.…”

Utilização da estrutura de comunidades de macroinvertebrados bentônicos como indicador de qualidade da água em rios no sul do Brasil

“…Vários fatores podem influenciar a distribuição de EPT, entre eles, os tipos de substratos (Silveira et al, 2006), a heterogeneidade de habitats, além da velocidade de correnteza e a disponibilidade de recursos tróficos (Crisci-Bispo et al, 2007;Hepp e Santos, 2009 (60) N (65) A (60) A (49) A (57) A (60) N (72) O grupo coletor catador dominou as amostras (Tabela 2). Essa categoria se alimenta de matéria orgânica, o que mostra a grande importância da matéria orgânica como recurso alimentar na dieta dos macroinvertebrados analisados (Giuliatti e Carvalho, 2009).…”