Larvae of Lutrochus germari (Lutrochidae: Coleoptera) and Stegoelmis sp. (Elmidae: Coleoptera): bore submerged woody debris in Neotropical streams

Valente‐Neto, Francisco; Fonseca-Gessner, Alaíde Aparecida

doi:10.1590/s1984-46702011000500018

Cited by 12 publications

(7 citation statements)

References 8 publications

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“…The high dependence upon wood material by wood specialists, due to their use for feeding and substrate, makes them sensitive to deforestation or changes in riparian vegetation (McKie and Cranston 2001). The loss of this fauna, as we showed here, could have consequences for nutrient cycling in aquatic ecosystems, as they convert coarse organic matter into fine particulate organic matter (Steedman and Anderson 1985;Valente-Neto and Fonseca-Gessner 2011).…”

Section: Discussionmentioning

confidence: 55%

“…All specimens were preserved in 70 % ethanol. Most specimens were identified to genus level using a stereomicroscope, taxonomic keys (Domínguez and Fernandez 2009;Trivinho-Strixino 2011), and the advice of specialists (see ''Acknowledgments''). Some specimens were identified to family (Diptera, excluding Chironomidae, some Trichoptera and Ephemeroptera) and to class (Oligochaeta).…”

Section: Sample Processingmentioning

confidence: 99%

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The effect of riparian deforestation on macroinvertebrates associated with submerged woody debris

et al. 2015

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Riparian deforestation is one of the main causes of change in freshwater ecosystems, resulting in the reduction of biological integrity and the loss of ecosystem functions. Our goal was to understand how a gradient of deforestation may affect abundance and richness of specialist and generalist macroinvertebrates associated with submerged woody debris in Neotropical streams. We conducted an observational study sampling mixed-species woody debris from 16 streams along a deforestation gradient. We also conducted an incubation study with known woody debris species (Cecropia pachystachya Trécul) in six streams. We collected 781 specimens and identified 50 taxa in the observational study, and we found 99 individuals belonging to 17 taxa in incubation study. Results from the two complementary studies indicate that the effect of riparian deforestation was more pronounced for wood specialists than generalists. Deforestation decreased the abundance and richness of wood specialists, and some taxa were locally extinct. The incubation study showed that sedimentation, which leads to the burying of woody debris, is an important process impeding macroinvertebrate colonization. Our study highlights the importance of woody debris as habitat for aquatic communities and as a structural component of streams, with important implications for conservation and biomonitoring. We suggest that wood specialists could be a potential group for use in biomonitoring programs aimed at assessing the impact of deforestation.

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Section: Discussionmentioning

confidence: 55%

Section: Sample Processingmentioning

confidence: 99%

The effect of riparian deforestation on macroinvertebrates associated with submerged woody debris

et al. 2015

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“…Streams are part of dendritic networks surrounded by a terrestrial matrix that includes the biome vegetation. Aquatic beetles rely on terrestrial organic matter inputs for feeding and habitat, especially those associated with submerged woody debris (Valente-Neto and Fonseca-Gessner 2011;Valente-Neto et al 2015). For example, wood gougers and borers, the most abundant beetles associated with submerged woody debris, play an important role converting coarse (woody debris) into fine organic matter (fecal pellets) (Steedman and Anderson 1985;Mckie and Cranston 1998).…”

Section: Introductionmentioning

confidence: 99%

“…For example, wood gougers and borers, the most abundant beetles associated with submerged woody debris, play an important role converting coarse (woody debris) into fine organic matter (fecal pellets) (Steedman and Anderson 1985;Mckie and Cranston 1998). In the Neotropical region, Lutrochus germari and Stegoelmis sp produce a large amount of fecal pellets (Valente-Neto and Fonseca-Gessner 2011;Valente-Neto et al 2015). Environmental factors appear to be the dominant drivers of composition of aquatic insects associated with wood debris, despite very few studies have examined the role of processes related to spatial dynamics.…”

Section: Introductionmentioning

confidence: 99%

Evidence of species sorting driving aquatic beetles associated with woody debris in a transitional region between Cerrado and Atlantic Forest biomes

et al. 2016

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We investigated (1) the variation of both species composition and species relative abundances of aquatic beetles associated with submerged woody debris in a transitional region between Cerrado (Brazilian savannah) and Atlantic Forest biomes; and (2) which assembling processes are more associated with the observed patterns, species sorting or mass effects. We hypothesized that the marked differences between Cerrado and Atlantic Forest streams regarding vegetation composition and structure would produce different environmental conditions for stream beetle faunas assembling. We used spatial explicit multivariate techniques to analyze whether metacommunity patterns were more associated with environmental variables, indicating a major role of species sorting, or with spatial variables, indicating intense dispersal. We found distinct communities within each biome in terms of both changes in taxonomic composition and species relative abundance driven by environmental factors. Biome type, a regional scale variable, and variation in dissolved oxygen levels, a local scale variable, were the best explanatory variables of variation in metacommunity structure. We did not find any evidence of the influence of processes related to the spatial configuration of streams. Altogether our results pointed to species sorting structuring saproxylic beetles assemblages patterns.

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“…The Neotropical species cling to logs and other organic matter in running water habitats and the larvae develop in the decaying wood. Valente-Neto & Fonseca-Gessner (2011) and Costa et al (1996) reported the larvae of Lutrochus germari Grouvelle in Brazil burrow into submerged woody debris and indicated that they create galleries and ingest the wood on which they live. The discovery of two recently described species from Venezuela has expanded the known habitat preferences, with Lutrochus minutus Maier & Short inhabiting water splashed detritus and Lutrochus meridaensis Maier & Short living on liverworts and mosses on rockface seeps (Maier & Short 2013).…”

Section: Introductionmentioning

confidence: 99%

Review of the Lutrochidae (Coleoptera) of the Guianas and Lesser Antilles, with description of four new species

Maier

Short

2014

Zootaxa

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The species of Lutrochidae from the Guianas, and the Lesser Antilles are reviewed, including the first reports of the family from Guyana, Suriname, and Grenada. Four species are described as new: Lutrochus funkae n. sp. and L. wao n. sp. from Guyana and French Guiana, L. grenadensis n. sp. from Grenada, and L. leeanneae n. sp. from Suriname. Photographs, genitalia illustrations, and distribution maps are provided for all species, and habitat photos and notes are presented for the species for which they are available.

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Larvae of Lutrochus germari (Lutrochidae: Coleoptera) and Stegoelmis sp. (Elmidae: Coleoptera): bore submerged woody debris in Neotropical streams

Cited by 12 publications

References 8 publications

The effect of riparian deforestation on macroinvertebrates associated with submerged woody debris

The effect of riparian deforestation on macroinvertebrates associated with submerged woody debris

Evidence of species sorting driving aquatic beetles associated with woody debris in a transitional region between Cerrado and Atlantic Forest biomes

Review of the Lutrochidae (Coleoptera) of the Guianas and Lesser Antilles, with description of four new species

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