ArticleEcotoxicology (London, England)2012
Intraspecific competition increases toxicant effects in outdoor pond microcosms.
Article in Ecotoxicology (London, England), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed.
- Miniaturisation of theUCL open. Environment · 2025Article
- Effects of Phenolic Pollution on Interspecific Competition betweenInternational journal of environmental research and public health · 2019Article
- Biological interactions mediate context and species-specific sensitivities to salinity.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018Article
- Combined effects of insecticide exposure and predation risk on freshwater detritivores.Ecotoxicology (London, England) · 2018Article
- Does increased salinity influence the competitive outcome of two producer species?Environmental science and pollution research international · 2017Article
- Daphnia magna's sense of competition: intra-specific interactions (ISI) alter life history strategies and increase metals toxicity.Ecotoxicology (London, England) · 2016Article
- Rapid evolution of increased vulnerability to an insecticide at the expansion front in a poleward-moving damselfly.Evolutionary applications · 2016Article
- Effects of intra- and interspecific competition on the sensitivity of Daphnia magna populations to the fungicide carbendazim.Ecotoxicology (London, England) · 2015Article
- Scientific Opinion on the effect assessment for pesticides on sediment organisms in edge-of-field surface water.EFSA journal. European Food Safety Authority · 2015Article
- Biotic interactions govern genetic adaptation to toxicants.Proceedings. Biological sciences · 2015Article
- Insecticide-mediated shift in ecological dominance between two competing species of grain beetles.PloS one · 2014Article
- Culmination of low-dose pesticide effects.Environmental science & technology · 2013Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Competition is a ubiquitous factor in natural populations and has been reported to alter the ecological impact of xenobiotics. We investigated conditions that mirror the natural variation of environmental factors. For this, different treatments were applied to 96 outdoor pond microcosms by shading the ponds and harvesting the communities. Then, the effect of esfenvalerate (0.03, 0.3, and 3 μg/L) on populations of Daphnia spp. was investigated. The pesticide effect and the sensitivity of Daphnia spp. in the context of a zooplankton community was increased by intraspecific competition 11 days after contamination. This relationship was most pronounced at 0.03 and 0.3 μg/L esfenvalerate, which were the concentrations that led to partial mortality. In contrast, interspecific interaction did not significantly alter the effect of the toxicant on Daphnia spp. Modelled concentration-response curves showed that the negative effects of the pesticide differed by a factor of up to 100 depending on the strength of intraspecific competition. In addition, a wider range of concentrations led to negative effects at high levels of intraspecific competition than at low levels. We argue that increased intraspecific competition reduces the availability of resources at the individual level and thereby increases the effect of contaminants. This knowledge about the interaction between competition and the response to toxicants is important in assessing the effects of these factors under field conditions.
Indexed as
Identifiers
22572781What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.