Intra- and inter-annual variations in Chironomidae (Insecta: Diptera) communities in subtropical streams

Nava, Diane; Restello, Rozane Maria; Hepp, Luiz Ubiratan

doi:10.1590/s1984-46702015000300005

Cited by 13 publications

(8 citation statements)

References 13 publications

(19 reference statements)

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“…The distribution pattern of benthic macroinvertebrates between the seasons can vary due to different regional seasonal patterns, as well as due to differences in relation to stability and resilience of colonisation after rainfall in tropical streams (Nava et al, 2015). However, in this study, the composition of the benthic macroinvertebrate assemblage was similar between the dry and rainy seasons, which were supported by the results of the NMDS analysis.…”

Section: Indexessupporting

confidence: 83%

Composition and diversity of benthic macroinvertebrates in a Brazilian Cerrado stream

Pio

Santiago

Copatti

2020

Iheringia, Sér. Zool.

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This study aimed to analyse the diversity and composition of benthic macroinvertebrate assemblages in the dry and rainy seasons in a Brazilian Cerrado stream, where it was hypothesized that the dry season has higher diversity and it differs in terms of organism composition in relation to the rainy season. Sampling was carried out in the dry (May and August/2016 and August/2017) and rainy seasons (November/2016 and February and November/2017). Individuals were identified at the family level and classified according to functional feeding group (FFG). There were 3,776 individuals, in which Chironomidae was the most abundant taxon with 2,226 organisms. The FFG with the highest number of individuals and species richness were collector-gatherer and predator, respectively. The species richness was higher in the dry season than in the rainy season. The ordinance generated by NMDS showed that there was no distinction in the composition of the assemblage between the dry and rainy seasons. Seasonal variations do not alter the abundance and composition of the benthic macroinvertebrate assemblage, but the species richness does decrease in rainy seasons.

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Section: Indexessupporting

confidence: 83%

Composition and diversity of benthic macroinvertebrates in a Brazilian Cerrado stream

Pio

Santiago

Copatti

2020

Iheringia, Sér. Zool.

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“…The replacement of vegetation by agriculture decreases the canopy and favours light penetration and an increase in water temperature. On the other hand, the higher sediment input contributes to an increase in the nutrients and organic matter concentration in streams (Nava et al, 2015), which might affect the availability of food (e.g., biofilm). Thus, the main carbon source for organisms becomes autochthonous instead allochthonous.…”

Section: Discussionmentioning

confidence: 99%

Influence of land-use on structural and functional macroinvertebrate composition communities associated on detritus in Subtropical Atlantic Forest streams

et al. 2016

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Influence of land-use on structural and functional macroinvertebrate composition communities associated on detritus in Subtropical Atlantic Forest streamsInfluência do uso da terra sobre a composição estrutural e funcional da comunidade de macroinvertebrados associados a detritos em riachos subtropicais da Floresta Atlântica Abstract: Aim: Our aim in this study was to evaluate the effects of land use in drainage basins of the streams on the taxonomic and functional composition of aquatic invertebrate communities associated in leaf litter. Methods: We evaluated the colonisation of invertebrates in the incubated plant debris in streams with presence and absence of riparian vegetation and different land-uses in the drainage area. We used the litter bags approach. Results: The taxonomic and functional composition invertebrate associated with leaf litter ranged between streams. In addition, streams with presence of vegetation showed less variation taxonomic and functional composition communities. Still, the density of shredders invertebrates were lower in streams without vegetation. Conclusions: The riparian vegetation is an important environmental factor in the composition of invertebrates. However, the land-use throughout the drainage basin should be considered as relevant factor in structuring aquatic biota.

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“…The precipitation intensity isone of the mainly factors that control the temporal distribution of stream insect assemblages (Flecker & Feifarek, 1994;Restello et al, 2014;Nava et al, 2015). The increase on the pluviosity levels intensifies the water flow, resulting on aquatic insects drift by physical perturbations.…”

mentioning

confidence: 99%

“…The main factor that can cause a nested pattern on benthic assemblages can be the habitat characteristic (Milesi & Melo, 2014;Cerini et al, 2020) or anthropogenic disturbance (Heino et al, 2009;Huiñocana et al, 2020). Therefore, the temporal scales besides the constant alterations on climatic changes can also affect these organisms (Anjos et al, 2011;Ruhí et al, 2013;Nava et al, 2015).These alterations could influence the variation in nestedness caused by variations in temporal scales (Petsch et al, 2014). Heino et al (2009) studying aquatic insects for three years found a weak nested pattern but temporal stability in the assemblage nestedness.…”

mentioning

confidence: 99%

“…In addition, they found that nested pattern could be affected by hydrological disturbance, with communities of periods with high precipitation nested on communities of periods with low precipitation. In this way, the temporal variations mediated by water volume of the streams are important for the structure and composition of Chironomidae assemblages (Peralta & Martin, 2015;Nava et al, 2015).…”

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confidence: 99%

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Nestedness of stream insects in Subtropical region: importance of inter-annual temporal scale

Hepp

Milesi

Nava

et al. 2021

Iheringia, Sér. Zool.

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Stream insects use in different ways the stream habitats which affect patterns of species occurrence on stream. The nestedness is one of these patterns being an ecological mechanism that generates beta diversity. In this study, we verify the effects of temporal environmental variations on nestedness patterns of Chironomidae assemblages on subtropical streams. We collected chironomid larvae during winter and summer during three years (2010, 2011 and 2012) in Brazilian Subtropical low-order streams (Erechim, state of Rio Grande do Sul, Brazil). We measured environmental variables in each stream. To assess if assemblages will show nested patterns intra-and interannual we used a NODF metric. We observed nestedness only in one year, this pattern was due to variation of limnological factors, which are directly associated with climatic conditions (precipitation and water temperature) and agricultural management (e.g. dissolved oxygen and nutrients). Climatological events affect Chironomidae community through the time. The variations on precipitation values could be one of the mainly factors that influence nestedness for this community. Finally, studies on nesting on time scales should consider inter-annual comparisons, as climatic variations are more evident.

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Intra- and inter-annual variations in Chironomidae (Insecta: Diptera) communities in subtropical streams

Cited by 13 publications

References 13 publications

Composition and diversity of benthic macroinvertebrates in a Brazilian Cerrado stream

Composition and diversity of benthic macroinvertebrates in a Brazilian Cerrado stream

Influence of land-use on structural and functional macroinvertebrate composition communities associated on detritus in Subtropical Atlantic Forest streams

Nestedness of stream insects in Subtropical region: importance of inter-annual temporal scale

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