Linking landscape composition and biological factors with exposure levels of rodenticides and agrochemicals in avian apex predators from Germany

Badry, Alexander; Schenke, Detlef; Treu, Gabriele; Krone, Oliver

doi:10.1016/j.envres.2020.110602

Cited by 32 publications

(36 citation statements)

References 70 publications

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“…If we consider the total concentration, SGARs accounted for 95% of the burden [13]. Our results differ from Badry et al [35] which, as a result of the analysis of 60 samples from white-tailed eagles in Germany, detected AR only in 38.3% of samples at low concentration (from 4.69 to 28.49 μg/kg). In our study, bromadiolone and brodifacoum were detected in almost all tested liver samples, the prevalence of AR was 100%, and the concentrations of AR were significantly higher (from 1.1 to 903.0 μg/kg).…”

Section: Discussioncontrasting

confidence: 94%

White-Tailed Eagles’ (Haliaeetus albicilla) Exposure to Anticoagulant Rodenticides and Causes of Poisoning in Poland (2018–2020)

Sell

Śniegocki

Giergiel

et al. 2022

Toxics

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The white-tailed eagle (Haliaeetus albicilla) is strictly protected in Poland due to its threat of extinction. This study’s main goal was to assess their exposure to indirect poisoning by anticoagulant rodenticides (AR). This study presents the investigation results of 40 white-tailed eagles’ suspected poisoning cases in the years 2018–2020 in Poland. In all tested liver samples, using a liquid chromatography–mass spectrometry method, at least one of the AR (bromadiolone, brodifacoum, difenacoum, flocoumafen) was detected and confirmed. The other tested AR compounds (chlorophacinone, coumachlor, coumatetralyl, difethialone, diphacinone, warfarin) were not detected. The mean concentration of the sum of rodenticides was 174.4 µg/kg (from 2.5 to 1225.0 µg/kg). In 20 cases, the sum concentration was above 100 µg/kg and in 10 cases it was above 200 µg/kg. Interpretation of cases of AR poisonings should take into account their concentration in the liver, anatomopathological lesions, circumstances of death/finding of the animal, and elimination of other possible causes of poisoning. Based on this study, AR was the direct cause of death in 10% of incidents. Extensive use of rodenticides generates a high risk of poisonings of white-tailed eagles in Poland.

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Section: Discussioncontrasting

confidence: 94%

White-Tailed Eagles’ (Haliaeetus albicilla) Exposure to Anticoagulant Rodenticides and Causes of Poisoning in Poland (2018–2020)

Sell

Śniegocki

Giergiel

et al. 2022

Toxics

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“…Monitoring of pesticide residue levels has become an important tool to provide exposure data of wild animals and to allow an assessment of potential hazards in the postregistration period (see Badry et al, 2021; de Souza et al, 2020; Plaza et al, 2019). Such monitoring can help in deciding which substance has the least deleterious effect, and whether temporal and/or spatial restrictions for the use of pesticides are required.…”

Section: Introductionmentioning

confidence: 99%

“…Given that exposure of wildlife to active substances from a wide variety of pesticides is expected (see Tassin de Montaigu & Goulson, 2020), analytic methods for multiple‐residue screening have recently been developed (Rial‐Berriel et al, 2020; Badry et al, 2021). One such screening, for 30 pesticides, found residues of insecticides in addition to anticoagulant rodenticides in avian raptors (Badry et al, 2021). As usual, liver samples of carcasses and recently deceased individuals were examined (Valverde et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Noninvasively Collected Fecal Samples as Indicators of Multiple Pesticide Exposure in Wild Birds

Esther

Schenke

Heim

2021

Enviro Toxic and Chemistry

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Pesticide use poses a potential hazard to wild birds that use agricultural farmland as their foraging habitat. Whereas most current pesticide studies have found residues in liver samples and single active substances, noninvasive sampling methods and data on a wide variety of agrochemicals are needed to determine pesticide exposure of living wild birds for postregistration monitoring. We collected feces during autumn migration of Eurasian skylarks (Alauda arvensis), a species that commonly forages in winter cereal crops. Birds were kept in paper bags until we measured their body condition, individually marked and released them. We analyzed the feces dropped in paper bags for the presence of 80 pesticides including rodenticides and degradation products. Nine active substances from fungicides and herbicides commonly used in grain and maize fields were detected individually, or in combination, in 25% of the samples. We found no significant differences in body condition between exposed and unexposed birds, but Eurasian skylarks without pesticide residues had a better body condtion score on average than birds with pesticide residues. Pesticide determination in noninvasively collected fecal samples allows a refined risk analysis, which takes pesticides used in the habitats of birds into account. It allows the search for the sources of pesticide contamination, but also enables research into potential deleterious effects on the fitness of farmland birds.

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“…Agricultural intensification, especially loss of habitat diversity and increased pesticide application, affects the Red Kite negatively all over Europe (Knott et al 2009). Non-target poisoning with chemical pest-control compounds and lead-poisoning are widespread threats for the Red Kite (Chollet et al 2015;Molenaar et al 2017;Ganz et al 2018;Jacob et al 2018;Badry et al 2021) and the species could thus also be seen as a highly sensitive toxicological bioindicator (Carter and Grice 2000;Blanco and Bautista 2020).…”

Section: The Red Kite: a Sentinel For Human Impacts?mentioning

confidence: 99%

“…has less direct influence on population growth rate, but it erodes the non-breeding part of the population over time -as shown in chapter 4 and also in the recent work bySergio et al (2020). The causes of the change in Red Kite juvenile survival need further study, but two major, non-exclusive hypotheses on causal mechanisms for the decline over several decades are: (i) long-term negative effects of poisoning and (ii) a decrease in body condition related to ongoing declines in food availability.Poisoning has affected the European Red Kite population for decades(Berny and Gaillet 2008;Cardiel and Viñuela 2009) and still threatens survival by direct as well as indirect effects(Mateo-Tomás et al 2020;Badry et al 2021). That younger individuals are especially vulnerable to poisoning suggests previous work from the UK and from Spain(Smart et al 2010;Tavecchia et al 2012;Sergio et al 2020).…”

mentioning

confidence: 99%

Habitat use and population viability of the Red Kite (Milvus milvus) in Germany

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Linking landscape composition and biological factors with exposure levels of rodenticides and agrochemicals in avian apex predators from Germany

Cited by 32 publications

References 70 publications

White-Tailed Eagles’ (Haliaeetus albicilla) Exposure to Anticoagulant Rodenticides and Causes of Poisoning in Poland (2018–2020)

White-Tailed Eagles’ (Haliaeetus albicilla) Exposure to Anticoagulant Rodenticides and Causes of Poisoning in Poland (2018–2020)

Noninvasively Collected Fecal Samples as Indicators of Multiple Pesticide Exposure in Wild Birds

Habitat use and population viability of the Red Kite (Milvus milvus) in Germany

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