Adult dragonflies are indicators of environmental metallic elements

Lesch, Velesia; Bouwman, Hindrik

doi:10.1016/j.chemosphere.2018.06.029

Cited by 13 publications

(6 citation statements)

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“…Dragon ies appear to provide a more stable and effective indication of the status of environmental pollutants than direct indicators such as water, soil, and the atmosphere (Lesch and Bouwman, 2018;Eagles-Smith, et al, 2020). As a typical carnivorous insect, adult dragon ies respond sensitively to Hg contamination in food chains.…”

Section: Spatial Variation In Thg and Mehg In Dragon Iesmentioning

confidence: 99%

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Distributions of Total Mercury and Methylmercury in Dragonflies from a Large, Abandoned Mercury Mining Region in China

Tang

Han

et al. 2021

Arch Environ Contam Toxicol

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Dragon ies (Order Odonata) are often considered to be biosentinels of environmental contamination. Dragon ies (n = 439) belonging to 15 species of eight genera were collected from an abandoned mercury (Hg) mining region in China to investigate the bioaccumulation of total Hg (THg) and methylmercury (MeHg). The THg and MeHg concentrations in dragon ies varied widely within ranges of 0.06-19 mg/kg and 0.02-5.7 mg/kg, respectively. THg and MeHg were positively correlated with bodyweight (THg: r 2 = 0.10, P = 0.000; MeHg: r 2 = 0.09, P = 0.000). Signi cant variations were observed among species, with the highest MeHg value (in Orthetrum triangulare) being 5-fold higher than the lowest (in Pantala avescens). These variations were consistent with those of nitrogen isotope (δ 15 N) values. A health risk assessment found hazard quotients for specialist dragon y-consuming birds of up to 7.2, which is 2.4 times greater than the permissible limit of 3, suggesting a potential health risk of exposure.

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Section: Spatial Variation In Thg and Mehg In Dragon Iesmentioning

confidence: 99%

“…Also, an elevated THg value of 4.2 mg/kg (range: 0.23-12 mg/kg) was reported in Odonata from the area of zinc smelting and chlor-alkali areas (Zhang et al, 2009). High levels of Hg in dragon ies may imply heavy Hgcontamination of the local environment (Zhang et al, 2012;Lesch and Bouwman, 2018).…”

Section: Spatial Variation In Thg and Mehg In Dragon Iesmentioning

confidence: 99%

Distributions of Total Mercury and Methylmercury in Dragonflies from a Large, Abandoned Mercury Mining Region in China

Tang

Han

et al. 2021

Arch Environ Contam Toxicol

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“…The samples were dissolved in concentrated nitric acid (65%, Platinum Line, analytically pure quality [supplied with a warranty certificate]; ACE Chemicals). The solutions were placed in polymeric fluorocarbon vessels, sealed, and heat-digested for 35 min using an Ethos UP microwave unit according to US Environmental Protection Agency (USEPA) method 3051A (US Environmental Protection Agency 2007; Lesch and Bouwman 2018).…”

Section: Sample Preparation and Analysesmentioning

confidence: 99%

“…Few insects occur in the marine environment, but terrestrial and freshwater insects are used as indicators of pollution, such as dragonfly larvae in water (Erasmus et al 2020) and bees, butterflies, and dragonflies on dry land (Free et al 1983; Clark and Samways 1996; Van Wyk et al 2007; Lesch et al 2017; Lesch and Bouwman 2018). One group of Hymenoptera that has largely escaped the attention of researchers as indicators of pollution on land is the wasps.…”

Section: Introductionmentioning

confidence: 99%

The Wasp as a Terrestrial Indicator of Environmental Metal Composition: Evidence from Zimbabwe

Nadat

Kylin

Sithole

et al. 2021

Enviro Toxic and Chemistry

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We explored metal concentrations in wasps from 4 sites near Harare, Zimbabwe, on a 106 km west-east transect. We found elevated concentrations at 2 presumed-polluted sites (a platinum [Pt] mine and a known polluted lake) located near a metal-enriched geological feature (the Great Dyke). A site in urban Harare and a nature reserve served as reference. Only wasps from the 2 presumed-polluted sites had quantifiable Pt. For Cr, Ni, Mg, Se, Fe, Mn, and V, we report the highest concentrations in wasps yet published. Wasps from the presumed-polluted sites had significantly higher concentrations of most metals when compared with wasps from the reference sites, suggesting pollution as a source. Geology, however, differs between the sites. It is probable, therefore, that both geology and pollution contributed to the differences in metal concentrations. Because of its long and narrow dimensions (550 km long and 4-11 km wide), the Great Dyke offers opportunities for comparative studies. Because wasps form a complex part of the food web and ecology, studies on the transfer of metals to wasps' predators are needed, especially given that some birds specialize in feeding on hymenopterans. The rich diversity of wasps (>145 000 species worldwide) occupying multiple different trophic levels is a good indicator, and wasps have a rich potential to join other invertebrates as terrestrial indicators.

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“…Os ostrácodes são organismos de reconhecida importância funcional nas redes alimentares aquáticas e são igualmente, ou mais sensíveis, a diversos compostos químicos, em comparação com outros invertebrados (DAAM et al, 2013;. A sensibilidade de Odonata e Ostracoda, no entanto, foi pouco testada em testes de toxicidade laboratorial GŁADYSZ et al, 2016;LESCH;BOUWMAN, 2018).…”

Section: Introductionunclassified

Avaliação da toxicidade de metais sobre os macroinvertebrados bentônicos tropicais >i<Tramea cophysa>/i< (Libelullidae, Odonata), >i<Chlamydotheca>/i< sp.(Cyprididae, Ostracoda) e >i<Strandesia trispinosa>/i< (Cyprididae, Ostracoda)

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Metals are very important for live beings in general and particularly for men. Some metals are essential to metabolismo in small amounts, but in higher concentrations they become toxic. With the exponencial increase of human population and technological development, metal pollution has become a severe worldwide problem. In this study we investigated the acute toxicity of isolately and in mixture combinations of four common metals on Earth, which are widely used, but well recognized as toxicants to both, terrestrial and aquatic organisms. The acute toxicity of copper, cadmium, mercury and manganese on the survival of tropical invertebrates, Tramea cophysa (Odonata), Chlamydotheca sp. and Strandesia trispinosa (Ostracoda) was evaluated for each metal isolately and as binary mixtures. The survival of this species exposed to a series of concentrations of each metal was evaluated and their sensitivity compared among the species studied and with different species of tropical and temperate regions by constructing Species Sensitivity Distribution curves (SSDs). Manganese was the least toxic compared to other tested metals, possibly due to its immobilization in the cuticle of the test species. T. cophysa was among the species more tolerant to these metals and S. trispinosa among the most sensitive species when compared to other invertebrates used in ecotoxicological tests. From the responses observed in the tests with the isolated compounds it was concluded that the selected species are adequate to toxicity evaluations. For the combinations of the copper sulfate/cadmium chloride compounds the Concentration Addition model was the one which best explained the toxicity on S. trispinosa survival indicating antagonistic adjustment. For copper sulphate and mercury chloride mixture and copper sulphate and manganese sulphate, the Concentration Addition model also best explained the toxicity of S. trispinosa survival, but indicating synergism when copper sulphate predominated in the mixture and antagonism when mercury chloride and manganese sulphate predominated in the mixtures. For the mixture of cadmium chloride andmercury chloride, the model that best explained the effects of the mixture on the survival of S. trispinosa was that of Independent Action, being the best fit to the data given by the synergistic deviation. Other aspects of the toxicity of the evaluated metals were the effects of the exposure of Tramea cophysa and Chlamydotheca sp. to sub-lethal concentrations of the four metals. It was verified that the predation rate of T. cophisa decreased when exposed to increasing concentrations of copper sulphate, cadmium chloride and mercury chloride, whereas for Chamydotheca sp. there was an increase in the rate of predation for most concentrations of the metals tested. Therefore, to understand how metals affect communities, it is necessary to assess the toxicity for each species both acute and chronic. Addressing this challenge in Ecotoxicology is essential for understanding how contaminants can affect from the behavior of in...

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Adult dragonflies are indicators of environmental metallic elements

Cited by 13 publications

References 44 publications

Distributions of Total Mercury and Methylmercury in Dragonflies from a Large, Abandoned Mercury Mining Region in China

Distributions of Total Mercury and Methylmercury in Dragonflies from a Large, Abandoned Mercury Mining Region in China

The Wasp as a Terrestrial Indicator of Environmental Metal Composition: Evidence from Zimbabwe

Avaliação da toxicidade de metais sobre os macroinvertebrados bentônicos tropicais >i<Tramea cophysa>/i< (Libelullidae, Odonata), >i<Chlamydotheca>/i< sp.(Cyprididae, Ostracoda) e >i<Strandesia trispinosa>/i< (Cyprididae, Ostracoda)

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