Are native bees in Brazil at risk from the exposure to the neonicotinoid imidacloprid?

Assis, Josimere Conceição de; Tadei, Rafaela; Oliveira, Vanessa Bezerra de Menezes; Silva-Zacarín, Elaine C.M.

doi:10.1016/j.envres.2022.113127

Cited by 19 publications

(26 citation statements)

References 73 publications

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“…The distribution of species in the SSD (Figure 1) also demonstrated that non‐ Apis bees were not more sensitive than A. mellifera to thiamethoxam. This is contrary to the conclusion of Conceição de Assis et al (2022) that honeybees were less sensitive than stingless bees to imidacloprid. However, their approach did not consider the order of magnitude difference in body weight of bees in their dataset (Thompson & Pamminger, 2019).…”

Section: Discussioncontrasting

confidence: 99%

“…The diversity of species in the SSD should also be considered to avoid bias. Conceição de Assis et al (2022) constructed an oral toxicity SSD based on six datapoints; however, they only identified adult acute oral toxicity data for imidacloprid for three non‐ Apis species.…”

Section: Discussionmentioning

confidence: 99%

“…The HC 5 or HD 5 (5th percentile of the values based on concentration or dose, respectively) derived from the SSD represents the endpoint that protects 95% of the species in the environment (Fox et al, 2021; Posthuma et al, 2019). Conceição de Assis et al (2022) proposed use of the LD50 HD 5 (dose/bee) for imidacloprid, generated from an SSD for published adult acute LD50 data (contact and oral) from a range of bee species. In constructing their SSD, Conceição de Assis et al (2022) expressed toxicity as µg/bee and did not consider the effect on toxicity of the orders of magnitude variation in body weight of the species included (Thompson, 2016; Thompson & Pamminger, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Dust abraded from thiamethoxam‐treated seed during sowing: Refining the risk assessment for native bees in Brazil

Thompson

Cione

Panagio

et al. 2023

Integr Envir Assess & Manag

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During sowing using pneumatic machinery, dust may be abraded from pesticide‐treated seed and contaminate adjacent bee‐attractive off‐crop areas. This study quantified the risk to native bees of dust released during sowing of Brazilian crop seeds treated with a thiamethoxam formulation (Cruiser 350FS). To address toxicity to native bees, adult acute contact LD50 data for thiamethoxam were collated from the literature, a species sensitivity distribution generated, and the HD5 calculated. The LD50 HD5 was used to refine the default safety factor applied to the honeybee acute contact LD50 from 10 to 5.45 for thiamethoxam. Crop‐specific abraded dust data (Heubach dust and Heubach AI) were generated for seeds treated with Cruiser 350FS sourced from on‐farm and industrial facilities. The mean Heubach dust levels was ranked as cotton = maize > sunflower = soybean > drybean. There was no correlation between the measured residues of thiamethoxam (Heubach AI) and those estimated in dust based on the thiamethoxam content of Cruiser 350FS. A hazard quotient (HQ) for each crop (based on application rate, the default dust deposition factor, and the honeybee contact LD50/10) identified risks during sowing for all crops. Refinement of the application rate with the measured 90th percentile Heubach dust (assuming 100% thiamethoxam) resulted in sowing of industrially treated soybean and on‐farm treated cotton being identified as risks. Further refinement using either the measured 90th percentile Heubach AI or the acute contact LD50 (HD5) resulted in sowing of all crops treated with Cruiser 350FS as being identified as low risk. Similar high quality seed treatment should be demonstrated for other formulations containing insecticides with high toxicity to bees. Data on dust drift from machinery and crops more representative of those in Brazil may allow further refinement of the default dust deposition value of 17% used in this study. Integr Environ Assess Manag 2023;00:1–13. © 2023 SETAC

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dust abraded from thiamethoxam‐treated seed during sowing: Refining the risk assessment for native bees in Brazil

Thompson

Cione

Panagio

et al. 2023

Integr Envir Assess & Manag

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“…This bee species has been often reported to be more sensitive to insecticides than the honeybee Apis mellifera , which has traditionally been used as a standard bee test species (Del Sarto et al, 2014; Tomé et al, 2017). Assessing the exposure of the stingless bee M. scutellaris has been recommended to more refined risk assessments for non‐ Apis species because it appears to be imperative to the understanding of such high insecticide sensitivity (Conceição de Assis et al., 2022).…”

Section: Introductionmentioning

confidence: 99%

Modified QuEChERS Method for Extracting Thiamethoxam and Imidacloprid from Stingless Bees: Development, Application, and Green Metrics

Rahman

Ali

Xavier

et al. 2022

Enviro Toxic and Chemistry

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In the present study, a method for the determination of residues of the neonicotinoid insecticides thiamethoxam and imidacloprid in the stingless bee Melipona scutellaris Latreille (1811) was optimized through a factorial design, tested using green metrics, and then applied to exposed bees. It combines the extraction with a modified quick, easy, cheap, effective, rugged, and safe method and the determination by liquid chromatography–tandem mass spectrometry analysis. Different parameters such as the mass of the sample, dispersive sorbents, and elution solvents were assessed. Method validation parameters were checked and include sensitivity, specificity, and linearity. The limit of quantification of 0.0025 μg g–1 was obtained for both insecticides, where accuracy was 94%–100% with satisfactory intraday and interday precisions (relative standard deviation <10%). The qualified method was applied to orally and topically exposed bee samples, and the results indicated that it is suitable for the determination and quantification of neonicotinoid pesticide residues in this species. Moreover, green analytical metrics like the National Environmental Methods Index, Eco Scale score, high‐performance liquid chromatography with an environmental assessment tool (HPLC‐EAT), waste generation, and amount of sample were compared with methods described in the literature involving neonicotinoid analysis in honeybees. As a result, the present study displayed the highest Eco Scale score and HPLC‐EAT score and the second smallest amount of sample and waste generated. Thus, the method meets green analytical metrics more than other methods. In this sense, besides the application, the multicriteria decision analysis tool employed suggests that this is a good option as a green analytical method. Environ Toxicol Chem 2022;41:2365–2374. © 2022 SETAC

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“…From a biological perspective, pesticide effects also depend on the sensitivity of each bee species (e.g., [58]), which varies according to life history traits. Traits such as body weight, sociality (i.e., solitary or social), flight season, voltinism (i.e., number of generations in a year), floral specialization (i.e., polylectic or olygolectic), nesting location, and sex vary among bee species.…”

Section: Discussionmentioning

confidence: 99%

Uma meta-análise dos efeitos dos agrotóxicos sobre as abelhas e o serviço de polinização prestado por elas no contexto das práticas agrícolas intensivas\'

Kita¹

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Uma meta-análise dos efeitos dos agrotóxicos sobre as abelhas e o serviço de polinização prestado por elas no contexto das práticas agrícolas intensivas A meta-analysis of the effects of pesticides on bees and their pollination service in the context of intensive agricultural practices SÃO PAULO AGRADECIMENTOSSe não fosse pela ajuda que recebei ao longo da minha jornada como cientista, principalmente durante o mestrado, esta dissertação não estaria concluída. Por isso, não poderia deixar de agradecer às pessoas que caminharam junto comigo até aqui.Agradeço primeiramente aos meus pais, que não apenas investiram nos meus estudos sem medir esforços, mas também me apoiaram e me incentivaram a batalhar pelos meus sonhos.Também agradeço à minha tia Mitie pelo suporte e motivação, que suavizaram a minha jornada.Agradeço também aos meus professores da graduação pelos ensinamentos, especialmente à Profa. Cinthia Brasileiro por ter me apresentado ao mundo acadêmico durante a iniciação científica na Universidade Federal de São Paulo (UNIFESP) e por ter aberto a porta que me levou ao meu orientador, Prof. Marco Mello. Receber a orientação desse excelente profissional foi crucial para o desenvolvimento desta dissertação e da minha carreira como cientista. Por isso, sou extremamente grata ao Prof. Marco pelos sábios conselhos, valiosos ensinamentos e grandes oportunidades que recebi durante esses anos do mestrado.Também sou imensamente grata à Profa. Laura Leal por ter se disposto a me coorientar e ter feito isso de forma brilhante, ensinando-me a fazer meta-análise e, assim, tornando possível a execução das minhas ideias. Agradeço também à Profa. Tereza Giannini e à Profa.Isabel Alves pelas valiosíssimas sugestões, conselhos e direcionamento durante as reuniões do Comitê de Acompanhamento. Sem essas pesquisadoras admiráveis e seu vasto conhecimento sobre abelhas, eu não teria desenvolvido e amadurecido esta dissertação como fiz.Também sou grata por ter tido a sorte de conhecer e trabalhar com os meus colegas

show abstract

Are native bees in Brazil at risk from the exposure to the neonicotinoid imidacloprid?

Cited by 19 publications

References 73 publications

Dust abraded from thiamethoxam‐treated seed during sowing: Refining the risk assessment for native bees in Brazil

Dust abraded from thiamethoxam‐treated seed during sowing: Refining the risk assessment for native bees in Brazil

Modified QuEChERS Method for Extracting Thiamethoxam and Imidacloprid from Stingless Bees: Development, Application, and Green Metrics

Uma meta-análise dos efeitos dos agrotóxicos sobre as abelhas e o serviço de polinização prestado por elas no contexto das práticas agrícolas intensivas\'

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