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First evidence of cryptic species diversity and significant population structure in a widespread freshwater nematode morphospecies (Tobrilus gracilis)
TLDR
Overall diversity of limnetic nematodes has been so far drastically underestimated and challenges the assumed ubiquitous distribution of other, single freshwater nematode morphospecies. Expand
Using meiofauna to assess pollutants in freshwater sediments: a microcosm study with cadmium.
TLDR
The results of the present study support the use of small-scale microcosms with natural meiofauna communities as a suitable tool to assess the impact of pollutants in freshwater sediments. Expand
The functional response of a freshwater benthic community to cadmium pollution.
TLDR
Observations from a 7-month microcosm study on the effects of low and high toxic stress on an entire sediment community provide new insights into the functioning of freshwater ecosystems and demonstrate the functional consequences of toxicants on biological systems. Expand
Biomass estimation across the benthic community in polluted freshwater sediment--a promising endpoint in microcosm studies?
TLDR
Bi biomass can provide a useful additional endpoint in microcosm studies based on toxicant sensitivity, the reasonably low variance of the data and the workload involved, and the ecological relevance of endpoints. Expand
Effects of nutrient enrichment on the trophic structure and species composition of freshwater nematodes—a microcosm study
TLDR
The study highlights the potential of bottom-up forces in shaping freshwater nematode assemblages and provides further evidence of pelagic–meiobenthic coupling. Expand
The effects of nutrient enrichment on a freshwater meiofaunal assemblage
TLDR
It is hypothesised that the response of meiofaunal taxa to nutrients is attributable to the development of primary producers, which shifted with enrichment from low densities of edible diatoms and unicellular green algae to large standing stocks of inedible forms, such as Lemna minor and Cladophora spp. Expand
Species and trait compositions of freshwater nematodes as indicative descriptors of lake eutrophication
TLDR
This first attempt to apply a trait-based analysis to nematode assemblages was found to be successful for distinguishing among different degrees of lake eutrophication, but compared to macroinvertebrate taxa there remains a great paucity on bio-ecological trait data for nematodes species. Expand
The D3-D5 region of large subunit ribosomal DNA provides good resolution of German limnic and terrestrial nematode communities.
TLDR
This reference database for nematode species sampled at 147 locations across Germany may serve as a starting point for applied and fundamental studies for these ubiquitous, ecologically highly relevant, organisms. Expand
Toxicity in relation to mode of action for the nematode Caenorhabditis elegans: Acute-to-chronic ratios and quantitative structure-activity relationships.
TLDR
The results support earlier results from ACR and QSAR studies with standard freshwater test animals and suggest that C. elegans as a representative of small soil/sediment invertebrates would probably be protected by risk assessment strategies already in use. Expand
A comparative approach using ecotoxicological methods from single-species bioassays to model ecosystems.
TLDR
Microcosms containing sediment were used to investigate direct and indirect effects of zinc on natural nematode assemblages, and acute community toxicity tests considering only direct toxicity were conducted, finding species sensitivities in the microcosms corresponded better to field observations than to the results of the acute communityoxicity tests. Expand
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