Effects of urbanization on stream benthic invertebrate communities in Central Amazon

Martins, Renato Tavares; Couceiro, Sheyla Regina Marques; Melo, Adriano S.; Moreira, Marcelo P.; Hamada, Neusa

doi:10.1016/j.ecolind.2016.10.013

Cited by 66 publications

(30 citation statements)

References 53 publications

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“…Our study demonstrates that the natural elevated nutrient contents, typical of freshwaters of the Pampas, favour litter conditioning by microorganisms and invertebrate consumption, in agreement with previous studies (Roy et al, ), but excess nutrients in urban areas (e.g., by diffuse contamination) usually decelerate this process. Similar results were found in forested tropical urban streams (Martins, Couceiro, Melo, Moreira, & Hamada, ; Silva‐Junior, Moulton, Boëchat, & Gücker, with sites composed of urban and agricultural uses), tropical high‐altitude Andean urban streams (Iñiguez‐Armijos et al, ), and temperate hills zones after a urban wastewater plant (Englert, Zubrod, Schulz, & Bundschuh, ; Fleituch, ; Zubrod et al, ). However, urbanisation increased decay rates in temperate streams in Appalachian mountains (Gulis & Suberkropp, ), low mountain areas (Pascoal, Cássio, Marcotegui, Sanz, & Gomes, ; Rossi et al, ), Mediterranean areas (Menéndez et al, ), and temperate deciduous forest (Cook & Hoellein, ).…”

Section: Discussionsupporting

confidence: 65%

Urbanisation reduces litter breakdown rates and affects benthic invertebrate structure in Pampean streams

Tagliaferro

Giorgi

Torremorell

et al. 2019

Internat Rev Hydrobiol

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The Pampean region has become one of the most urbanised areas in South America with more than 91% of the Argentinean population. This region is ideal for human settlements that have historically chosen riverine grassland areas to settle. Consequently, urban streams are increasingly subjected to pressures affecting their functioning. The aim of this study was to assess urbanisation effects on two proxies of stream integrity: leaf litter decay and benthic invertebrate assemblage colonizing litter in streams draining urbanised versus reference grassland areas. We placed plastic coarse‐ and fine‐mesh bags containing Populus nigra leaf litter along three urban and three reference reaches, and these were retrieved periodically to determine the remaining leaf mass and the identity and quantity of detritivore assemblage colonizing bags. The decay rate was negatively affected by urbanisation, and it followed a negative relationship with increasing Nitrogen concentration (mostly ammonia) and a hump‐shape relationship against soluble reactive phosphorus. Urban invertebrate assemblages were significantly different from the reference reaches, and were species‐poorer and characterized by tolerant taxa belonging to Naididae, Glossiphoniidae, and Nematoda, whereas Hyalellidae, Aeglidae, Chironomidae, Caenidae, Baetidae, and Hydrobiidae represented the reference reaches. Our proxies of structural (i.e., invertebrate assemblages) and functional (i.e., leaf litter breakdown) stream integrity were mostly driven by a nutrient‐enrichment gradient and responded in a similar direction but with different magnitude to urban alterations.

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Section: Discussionsupporting

confidence: 65%

Urbanisation reduces litter breakdown rates and affects benthic invertebrate structure in Pampean streams

Tagliaferro

Giorgi

Torremorell

et al. 2019

Internat Rev Hydrobiol

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“…La gran abundancia y la riqueza del ensamblaje de élmidos en el periodo de aguas bajas puede deberse a las condiciones propicias para el establecimiento de los organismos: la ausencia de cambios bruscos en la estructura física del cauce (sustratos) y una oferta variada y estable de microhábitats (Arias-Díaz, et al, 2007;Lozano, 2014;Serna, et al, 2015;Vásquez, et al, 2014). Sin embargo, es necesario tener presente que la biota acuática soporta diferentes efectos adversos a lo largo de la cuenca (Terneus, et al, 2012;Bielmyer-Fraser, et al, 2017;Martins, et al, 2017;Moreno, et al, 2017;Van, et al, 2017), por ejemplo, la transformación del paisaje con la construcción de vías debida al desarrollo económico en la Orinoquia, y el enriquecimiento orgánico debido a la urbanización, la agricultura y la industrialización (Caicedo, 2016;Mora-Fernández, et al, 2015;Santana, 2010;Slava, 2015), lo que podría favorecer la aparición de organismos adaptados a estas condiciones. Estos efectos son evidentes durante la sequía (Auble, et al, 1994), lo que refleja que hay ensamblajes específicos frente a los diferentes afectaciones a lo largo del río, aumentando así la riqueza general (Bandyopadhyay & De, 2017).…”

Section: Discussionunclassified

“…En el presente estudio se encontró que las estaciones con mayor intervención antrópica y deterioro del hábitat exhibieron la menor abundancia o la ausencia de élmidos (estaciones 6 a 13). Algunos tramos dentro del casco urbano de Villavicencio reciben vertimientos de origen industrial, urbano y minero, entre otros, que podrían alterar la estructura y la composición de las comunidades de macroinvertebrados (Gamboa, et al, 2008;Lozano, 2014;Martins, et al, 2017).…”

Section: Discussionunclassified

Distribución espacial y temporal de Elmidae (Insecta: Coleoptera) y su relación con los parámetros fisicoquímicos en el río Ocoa, Meta, Colombia

Giraldo

Vásquez-Ramos

2019

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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Los élmidos (Coleoptera) son organismos acuáticos de distribución mundial. Sus formas inmaduras y adultas ocupan una amplia gama de sustratos y hábitats, y son un grupo diverso. Este estudio tuvo como objetivo determinar la distribución espacial y temporal de los Elmidae, y su relación con los parámetros fisicoquímicos en el río Ocoa. Se establecieron 15 estaciones de muestreo y se revisaron 210 muestras de macroinvertebrados recolectadas en un sustrato de roca-guijarro utilizando una red Surber (250 μm) en dos periodos hidrológicos contrastantes (de baja y alta precipitación), correspondientes a octubre de 2014 y febrero de 2015. Se obtuvieron 37 organismos (larvas y adultos) de nueve géneros de Elmidae: Heterelmis, Huleechius, Macrelmis, Astrolimnius, Microcylloepus, Neoelmis, Hexacylloepus, Cylloepus, Notelmis y Phanocerus, de los cuales siete corresponden a nuevos registros para la región de la Orinoquia colombiana. En el periodo de baja precipitación hubo una mayor representatividad, con 35 registros de nueve géneros, en tanto que en el periodo de alta precipitación hubo una marcada disminución de la riqueza, con dos registros solamente, correspondientes a dos géneros. En general, la abundancia de Elmidae fue baja a lo largo del río, y en las estaciones ubicadas en el sector que atraviesa la ciudad de Villavicencio, con mayor deterioro del hábitat, se registró la menor abundancia y en algunas no se registraron élmidos. Los efectos ambientales de la urbanización, como la contaminación por materia orgánica y la proliferación de coliformes debida al vertimiento de aguas residuales, fueron los principales factores determinantes de la disminución de la riqueza y la abundancia de estos organismos. Esta es la primera exploración de Elmidae en la zona y contribuye al conocimiento ecológico de la fauna de coleópteros en cuencas urbanas de la Orinoquia colombiana. © 2019. Acad. Colomb. Cienc. Ex. Fis. Nat. Palabras clave: Bioindicador; Coleoptera; Elmidae; Cuenca urbana; Orinoco.

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“…In Belterra (Pará, Brazil), where some specimens used in this study were collected, the forest has also partially been converted into pasture and the collection site is frequented by local people for waterside leisure. Igarapés frequently suffer the effects of anthropogenic impacts (Callisto et al 1998;Couceiro et al 2010;Matos et al 2011;Falcão et al 2012;Martins et al 2017) from deforestation, illegal mining and forest fires. There are plans to install several hydroelectric powerplants in the Amazonas River basin (Winemiller et al 2016), which could aggravate the impacts to low order streams by altering their hydrologic dynamics and environmental characteristics.…”

Section: Discussionmentioning

confidence: 99%

Morphology and distribution of the freshwater mussel Diplodon granosus, a rare and poorly understood species

et al. 2020

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Diplodon granosus was one of the first freshwater mussels to be described for South America. However, the status of the species was confusing for a long time, receiving different taxonomic treatments. In this paper, we redescribe the shell, with new data on the soft parts and information on the distribution and conservation of D. granosus, a rarely recorded species. The shell is thin, not inflated; the macrosculpture is composed only by granules that cover the whole shell, not forming bars; the microsculpture comprises short spikes. In the soft parts we highlight the few, weak and irregularly distributed lamellar connections of the outer demibranch and some features of the stomach, such as the distally enlarged minor typhlosole. There are records of D. granosus over a large area of South America, from Guiana to Argentina. However, most of these records are related to other species and the distribution of D. granosus is restricted to the north of South America in the basins of the Amazonas and Orinoco rivers, and coastal rivers in between. Despite this wide distribution, the species occurs in specific habitats, mainly streams (igarapés), resulting in an extremely fragmented occurrence. Thus, any disturbance to these habitats can threat this freshwater mussel.Morfologia e distribuição do bivalve de água doce Diplodon granosus, uma espécie rara e pouco conhecida RESUMO Diplodon granosus foi um dos primeiros bivalves de água doce descritos para a América do Sul. Contudo, o status dessa espécie foi confuso por um longo tempo, recebendo diferentes tratamentos taxonômicos. Neste estudo, apresentamos a redescrição da concha, assim como novos dados da anatomia das partes moles, e informações acerca da distribuição e conservação desta espécie raramente avistada. A concha é fina, não-inflada; a macroescultura é composta somente por grânulos que cobrem toda a concha, e não formam raios; a microescultura é composta por espinhos curtos. Nas partes moles, destacamos as poucas, fracas e irregularmente distribuídas conexões interlamelares da demibrânquia externa, assim como algumas características do estômago, como a tiflossole menor distalmente aumentada. Existem registros de D. granosus em uma grande área da América do Sul, da Guiana até a Argentina. Contudo, muitas destas ocorrências são relacionadas com outras espécies, estando D. granosus restrita às bacias dos rios Amazonas e Orinoco, e a rios costeiros entre essas duas bacias. Apesar desta aparente ampla distribuição, a espécie ocorre em habitats específicos, principalmente riachos (igarapés), resultando em uma distribuição fragmentada. Assim, qualquer modificação nestes ambientes pode ameaçar esta espécie. PALAVRAS-CHAVE: Unionida, Hyriidae, Rhipididontini, taxonomia, conservação CITE AS: Miyahira, I.C.; Mansur, M.C.D.; Pimpão, D.M.; Couceiros, S.R.M.; Santos, S.B. 2020. Morphology and distribution of the freshwater mussel Diplodon granosus a rare and poorly understood species. Acta Amazonica 50: 44-53.

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Effects of urbanization on stream benthic invertebrate communities in Central Amazon

Cited by 66 publications

References 53 publications

Urbanisation reduces litter breakdown rates and affects benthic invertebrate structure in Pampean streams

Urbanisation reduces litter breakdown rates and affects benthic invertebrate structure in Pampean streams

Distribución espacial y temporal de Elmidae (Insecta: Coleoptera) y su relación con los parámetros fisicoquímicos en el río Ocoa, Meta, Colombia

Morphology and distribution of the freshwater mussel Diplodon granosus, a rare and poorly understood species

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