Multiple stressor effects of herbicide, pH, and food on wetland zooplankton and a larval amphibian

Chen, Celia Y.; Hathaway, Kevin M.; Thompson, Dean G.; Folt, Carol L.

doi:10.1016/j.ecoenv.2007.08.007

Cited by 27 publications

(19 citation statements)

References 51 publications

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“…Most of the core questions in ecology revolve around how species interact with each other and the environment. Although several meta-analyses of ecological two-stressor interactions have been conducted, three-stressor interactions have been examined much less frequently (but see [51,56]). Crain and colleagues conducted a comprehensive review of how a third stressor affects two-stressor interactions in marine systems.…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, Chen and colleagues used three-way ANOVA to analyse an empirical study with three stressors on zooplankton and amphibians. They found that the three-stressor combination had synergistic effects that harmed survival and reproduction of the two study species [56]. However, in these studies, it is difficult to determine what an emergent interaction is, because the effects of the three stressors combined together are not explicitly compared with all single and all pairwise stressor interactions.…”

Section: Discussionmentioning

confidence: 99%

“…It is analogous to theoretical physics concepts such as the 3-point connected correlation or Ursell function in quantum field theory, and the third joint cumulant in statistical physics and statistics [56,57]. However, our measure differs from these because it is not defined with respect to expectation values, and the combination of two variables is through addition and not multiplication.…”

Section: Discussionmentioning

confidence: 99%

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Uncovering emergent interactions in three-way combinations of stressors

Beppler

Tekin

Mao

et al. 2016

J. R. Soc. Interface.

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Understanding how multiple stressors interact is needed to predict the dynamical outcomes of diverse biological systems, ranging from drug-resistant pathogens that are combated and treated with combination drug therapies to ecosystems impacted by environmental toxicants or disturbances. Nevertheless, extensive studies of higher-order (more than two component) interactions have been lacking. Here, we conduct experiments using 20 threedrug combinations and their effects on the bacterial growth of Escherichia coli. We report our measurements of growth rates in single, pairwise and tripledrug combinations. To uncover emergent interactions, we derive a simple framework to calculate expectations for three-way interactions based on the measured impact of each individual stressor and of each pairwise interaction. Using our framework, we find that (i) emergent antagonisms are more common than emergent synergies and (ii) emergent antagonisms are more common and emergent synergies are more rare than would be inferred from measures of net effects that do not disentangle pairwise interactions from three-way interactions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Uncovering emergent interactions in three-way combinations of stressors

Beppler

Tekin

Mao

et al. 2016

J. R. Soc. Interface.

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“…The interactions of combined chemical and physical stressors may create effects that are either greater than, or lesser than, those of each stressor alone (Crain et al, 2008). Consequently, it is essential to understand when natural variations in environmental variables modify the toxicity of water pollutants and to incorporate this knowledge into environmental regulation and risk evaluation and mitigation strategies (Chen et al, 2008).…”

Section: General Concernmentioning

confidence: 99%

Temperature and Light Modulation of Herbicide Toxicity on Algal and Cyanobacterial Physiology

Gomes

Juneau

2017

Front. Environ. Sci.

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HIGHLIGHTS• We reviewed the interaction between light, temperature and herbicides on algal and cyanobacterial physiology.• Temperature is the main factor affecting herbicide toxicity to algae and cyanobacteria.• Changes in light environment may modulate the effects of photosynthesis-targeting herbicides.Important interactions between climatic parameters and herbicide toxicity have been discussed in the literature. As climate changes are expected to influence the growth conditions of aquatic photosynthetic organisms over the next century by modifying the physicochemical parameters of the environment (such as temperature and incident light characteristics), the following questions arise: How will variations in climatic conditions influence herbicide toxicity in algae and cyanobacteria? Are these coupled effects on aquatic photosynthetic organism physiology antagonistic, additive, or synergistic?We discuss here the physiological responses of algae and cyanobacteria to the combined effects of environmental changes (temperature and light) and herbicide exposure. Both temperature and light are proposed to influence herbicide toxicity through acclimation processes that are mainly related to cell size and photosynthesis. Algal and cyanobacterial responses to interactions between light, temperature, and herbicides are species-specific, making it difficult today to establish a single model of how climate changes will affect toxicity of herbicides. Acclimation processes could assure the maintenance of primary production but total biodiversity should decrease in communities exposed to herbicides under changing temperature and light conditions. The inclusion of considerations on the impacts of environmental changes on toxicity of herbicides in water quality guidelines directed toward protecting aquatic life is now urgently needed.Keywords: environment, toxicity, hazardous, pollutants, algae, cyanobacteria Gomes and JuneauHerbicides/Climate Changes on PhytoplanktonGraphical Abstract | Changes in temperature and light conditions in water systems over the next century will drive physiological responses of algal and cyanobacterial community to herbicides, by antagonistic, additive, or synergic effects with these pollutants.

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“…Chen et al (2004Chen et al ( , 2008 examined effects of interactions among pH (5.5 and 7.5), two levels of food concentrations, and the formulated products Vision (glyphosate: 0.75 and 1.50 mg acid equivalent/L) and Release ® (triclopyr) on cladoceran Simocephalus vetulus. Herbicide treatments resulted in significant decreases in survival, reproductive rate, and development time for S. vetulus at levels 5-10× below predicted worst case environmental concentrations (2.6 mg/L).…”

Section: Field Studies Mesocosms and Microcosms Involving Herbicidmentioning

confidence: 99%