Benthic macroinvertebrate community structure in relation to food and environmental variables

Peeters, E.T.H.M.; Gylstra, R.; Vos, J. H.

doi:10.1023/b:hydr.0000026497.48827.70

Cited by 78 publications

(51 citation statements)

References 38 publications

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“…The percentage of variance in chironomids assemblages explained only by hydromorphological variables in our study was considerable (30.8%) and similar to the percentage of variation explained by physicochemical variables (27.7%). The relatively high percentage of unexplained variation (41.5%) in our study is typical of noisy data sets with many 0 values (Borcard et al, 1992), and could be result of abiotic and biotic factors not considered in this study, such as species' interactions (Kohler, 1992), food availability (Peeters et al, 2004), reproduction, competition and predation (MacNeil et al, 1999).…”

Section: Spatial Variability: Hydromorphological and Physicochemical mentioning

confidence: 89%

Environmental factors – spatial and temporal variation of chironomid communities in oceanic island streams (Azores archipelago)

Raposeiro

Costa

Hughes

2011

Ann. Limnol. - Int. J. Lim.

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-Freshwater systems on volcanic oceanic islands have very particular characteristics as a result of their geological origins, relatively small size, distances from source areas for colonizers, and distinct catchment morphology. These factors result in freshwater communities that are clearly distinct from continental systems. Chironomid spatial and temporal distribution was investigated in chironomid assemblages at 21 sites across the Azores Archipelago. Results using PERMANOVA, a permutational multivariate analysis of variance, indicated significant longitudinal differences in assemblages but none between islands or over time.Links between hydromorphological and physicochemical variables and the community assemblage were assessed using DISTLM, a linear model for distance-based multivariate analysis. The percentage of variation explained by hydromorphological factors (31%) was slightly higher than that explained by physicochemical (28%) factors. Descriptors of land use (forest area, scrub area, natural area of catchment) and stream slope were found to be the best environmental predictors of chironomid assemblages in Azores. Physicochemical variables such as temperature, pH, nitrite, iron and conductivity were the principal drivers of change in chironomid composition in stream locations. Headwater sites, characterized by lower temperature, acid to neutral pH values, low conductivity, nutrient and metal concentrations were dominated by Rheocricotopus atripes. Mid-section sites, located in agricultural areas were dominated by Thienemanniella clavicornis. Urbanized lower reaches were characterized by higher temperature, pH, conductivity and nutrient levels and were dominated by Cricotopus sp. These results give essential information that allows us to predict the response of different chironomid species to hydromorphological and physicochemical gradients across the archipelago's streams contributing providing the basis for the development of tools for the implementation of the Water Frame Directive.

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Section: Spatial Variability: Hydromorphological and Physicochemical mentioning

confidence: 89%

Environmental factors – spatial and temporal variation of chironomid communities in oceanic island streams (Azores archipelago)

Raposeiro

Costa

Hughes

2011

Ann. Limnol. - Int. J. Lim.

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“…substratum, organic matter content and types of bottom sediments, habitat and food selection, interspecific competition, predation, pollution and surface area of the water body, all of which act together (kołoDzieJczyk 1984, Lodge et al 1987, savage & gazey 1987, chertoPrud & udaLov 1996, carLsson 2001, oertLI et al 2002. Different studies also stressed the importance of food (brönmarK 1989, KornIJów 1996, KornIJów & ściBor 1999a, Peeters et al 2004.…”

Section: Selected Environmental Factors Affecting Oxbow Lake Mollusc mentioning

confidence: 99%

Mollusc communities of lowland rivers and oxbow lakes in agricultural areas with anthropogenically elevated nutrient concentration

Lewin¹

2014

Folia Malacol.

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Anthropogenically elevated nutrient concentration occurs in both ground and surface waters and cause grave environmental problems which are responsible for the degradation of water quality on a worldwide scale. The progressive anthropogenic pressure caused by prolonged agricultural activity has a negative effect on most water ecosystems including rivers and reservoirs. Freshwater molluscs, which are hololimnic organisms, have a limited mobility; therefore, they are good bioindicators of changes in their habitats. They reflect the abiotic or biotic state of water habitats, which represents the impact of environmental change on the habitat, community as well as on the ecosystem. A long-term survey of mollusc communities revealed the occurrence of 44 species including some rare, vulnerable, threatened or legally protected species, e.g. Borysthenia naticina, Unio crassus, Anodonta cygnea, Pseudanodonta complanata or Sphaerium rivicola, in the Wkra River, its tributaries and selected oxbow lakes. In the Wkra River catchment area, the mollusc communities, including U. crassus (Habitats Directive Natura 2000), are under a combined effect of several environmental factors. Conductivity, hardness, current velocity, river width, temperature, nutrient concentration and the size of sediment particles were the parameters most associated (statistically significant according to the forward selection results) with the distribution of mollusc species. The forward selection results showed that the concentration of dissolved oxygen and the occurrence of macrophytes also exerted a significant influence on the distribution of Mollusca. Among environmental factors, anthropogenically elevated concentrations of nitrites and nitrates in the water were the most predictive parameters that negatively influenced (stressors) the structure of mollusc communities. The novel findings of this survey showed that some mollusc species could tolerate wider ranges of some environmental factors and higher concentrations of nutrients than had been expected. U. crassus is more tolerant of a relatively high concentration of nitrates in the water than was previously expected, as well as of nitrites and phosphates, and it can survive in rivers with relatively high nutrient concentration. The present results confirm both the field and the toxicological research on the negative effect of nitrites and nitrates, which is caused by their toxicity to freshwater molluscs. The number of individuals, number of mollusc species and density decreased dramatically within the last year of the survey in the Wkra River and its tributaries. This phenomenon seems to be a direct result of the nutrient enrichment in the Wkra River catchment area, the regulation of riverbeds or an indirect result, e.g. lack of primary or appropriate host fishes for unionid species. The declining trend in the global mollusc population has probably begun to occur in the Wkra River catchment area.

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“…When the inflow discharge increased and the water residence time was reduced, the water might be strongly disturbed, which could influence the sedimentation of the suspended matter (Maritin and Neely, 2001;Peeters et al, 2004) and finally influence the density of naididae. The high density of the naididae mainly appeared in the low-discharge spring.…”

Section: Factors Affecting the Macroinvertebrate Communitymentioning

confidence: 99%

Effect of hydrological regime on the macroinvertebrate community in Three-Gorges Reservoir, China

Zhang

Shao

et al. 2010

Quaternary International

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Benthic macroinvertebrate community structure in relation to food and environmental variables

Cited by 78 publications

References 38 publications

Environmental factors – spatial and temporal variation of chironomid communities in oceanic island streams (Azores archipelago)

Environmental factors – spatial and temporal variation of chironomid communities in oceanic island streams (Azores archipelago)

Mollusc communities of lowland rivers and oxbow lakes in agricultural areas with anthropogenically elevated nutrient concentration

Effect of hydrological regime on the macroinvertebrate community in Three-Gorges Reservoir, China

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