Effects of Mercury on Development of<i>Oxya fuscovittata</i>(Marschall) (Orthoptera: Acrididae)

Malakar, Chandrik; Ganguly, Arijit; Sarkar, Asok K.; Haldar, P.

doi:10.1665/034.018.0204

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…In addition to the effects on adjacent trophic levels, the exposure of these organisms to Hg causes toxicological damage in these communities, an issue that has recently been explored with more emphasis by researchers, due to the reduction in insect communities observed in recent years, mainly caused by the increase in chemical pollution (Maillard et al, 2022;Hernández et al, 2022). In the order Orthoptera, the toxicological effects range from prolongation of the nymphal stage to insect mortality (Malakar et al, 2009), and the order Blattodea may have the mobility reduced up to the point of mortality (Piccoli et al, 2020). Thus, studies focused on population size, diversity and toxicology still need to be carried out in the community of soil organisms in the Middle Araguaia oodplain in order to measure the probable impact of Hg on these populations.…”

Section: Soil Organismsmentioning

confidence: 99%

Mercury distribution in organisms, litter, and soils of the Middle Araguaia floodplain in Brazil

Fernandes,

Monteiro,

de Miranda

et al. 2024

Environ Sci Pollut Res

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Mercury (Hg) is a chemical element that, depending on its concentration, may become toxic to living organisms due to the ability of Hg to bioaccumulate in food chains. In this study, we collected samples of soil, litter and organisms in the Middle Araguaia oodplain, Brazil. Total mercury (THg) concentrations in litter were signi cantly higher (p < 0.0001) than that in soil, ranging from 10.68 ± 0.55 to 48.94 ± 0.13 and 20.80 ± 1.07 to 55 .19 ± 1.59 ppb, respectively. Total mercury concentration levels in soil showed a linear, inversely proportional relationship with soil organic matter (SOM) contents and soil pH, which is consistent with the geochemical behavior of chemical elements in ooded environments. Ten orders of organisms were identi ed and the average THg concentrations determined in their bodies were up to 20 times higher than those in soil and litter. We found a signi cant linear relationship between the levels of THg in litter and the levels found in soil organisms, thereby allowing the prediction of THg concentration levels in soil organisms through the analysis of litter at the sample units. The different dynamics and feeding habits of soil organisms, the concentration of THg in these organisms may be in uenced by the course of the river. The bioaccumulation factor (BAF) calculated based on litter indicated the formation of trophic guilds, thus, BAF is a strong indicator of the trophic level of the sample units.

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Section: Soil Organismsmentioning

confidence: 99%

Mercury distribution in organisms, litter, and soils of the Middle Araguaia floodplain in Brazil

Fernandes,

Monteiro,

de Miranda

et al. 2024

Environ Sci Pollut Res

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Mercury entomotoxicology

et al. 2023

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Mercury Dynamics in Organims, Litter, and Soils of the Middle Araguaia Floodplain in Brazil

Fernandes

Monteiro

Miranda

et al. 2023

Preprint

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Mercury (Hg) is a chemical element that, depending on its concentration, may become toxic to living organisms due to the ability of Hg to bioaccumulate in food chains. In this study, we collected samples of soil, litter and organisms in the Middle Araguaia floodplain, Brazil. Total mercury (THg) concentrations in litter were significantly higher (p < 0.0001) than that in soil, ranging from 10.68 ± 0.55 to 48.94 ± 0.13 and 20.80 ± 1.07 to 55 .19 ± 1.59 ppb, respectively. Total mercury concentration levels in soil showed a linear, inversely proportional relationship with soil organic matter (SOM) contents and soil pH, which is consistent with the geochemical behavior of chemical elements in flooded environments. Ten orders of organisms were identified and the average THg concentrations determined in their bodies were up to 20 times higher than those in soil and litter. We found a significant linear relationship between the levels of THg in litter and the levels found in soil organisms, thereby allowing the prediction of THg concentration levels in soil organisms through the analysis of litter at the sample units. The different dynamics and feeding habits of soil organisms, the concentration of THg in these organisms may be influenced by the course of the river. The bioaccumulation factor (BAF) calculated based on litter indicated the formation of trophic guilds, thus, BAF is a strong indicator of the trophic level of the sample units.

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Effects of Mercury on Development ofOxya fuscovittata(Marschall) (Orthoptera: Acrididae)

Cited by 3 publications

References 15 publications

Mercury distribution in organisms, litter, and soils of the Middle Araguaia floodplain in Brazil

Mercury distribution in organisms, litter, and soils of the Middle Araguaia floodplain in Brazil

Mercury entomotoxicology

Mercury Dynamics in Organims, Litter, and Soils of the Middle Araguaia Floodplain in Brazil

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