Dynamics and effects of plastic contaminants’ assimilation in gulls

Marine Environmental Research, Год журнала: 2024, Номер 196, С. 106396 - 106396

Опубликована: Фев. 6, 2024

Polybrominated diphenyl ethers are persistent disrupters assimilated by organisms, yet little is known about their link to plastic ingestion and health effects. In an experiment, two groups of yellow-legged/lesser black-backed gulls (Larus michahellis/Larus fuscus) were fed plastics with BDE99 assess leaching into brain, preen oil, liver fat tissues evaluate effects on stress parameters. Although most was regurgitated, we observed a clear relation between chemical leaching. exhibited higher levels in brain tissue from the groups. Also, only values cholinesterases measured plasma significantly reduced 'plastic' Cholinesterase activity also tended decrease, suggesting negative effect gulls' neurofunction. Results indicate that occurs, even when stay stomach for short period time showed this can affect health.

Язык: Английский

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Microplastics ingestion and endocrine disrupting chemicals (EDCs) by breeding seabirds in the east tropical Atlantic: Associations with trophic and foraging proxies (δ15N and δ13C)

The Science of The Total Environment, Год журнала: 2023, Номер 912, С. 168664 - 168664

Опубликована: Ноя. 21, 2023

In this study we found that endocrine disrupting chemicals (EDCs) were omnipresent in a tropical seabird community comprising diverse ecological guilds and distinct foraging trophic preferences. Because EDCs tend to bioaccumulate within the food web microplastics can absorb release harmful chemical compounds, our findings draw attention potential threats wildlife. Thus, goal of was investigate role plastic ingestion, patterns (δ

Язык: Английский

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Human pressure may pose a threat to Mediterranean Golden Eagle’s (Aquila chrysaetos homeyeri) nestlings’ welfare

Journal of Ornithology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 30, 2025

Язык: Английский

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Bird feathers as a non-invasive method for ecotoxicological monitoring; a rapid review

Zoologist (The), Год журнала: 2022, Номер 20(1), С. 26 - 40

Опубликована: Ноя. 24, 2022

The decline in animal population with resulting risk of eventual disruption ecosystem functioning has necessitated moves towards non-invasive sampling methods for ecotoxicological studies. These efforts have focused on developing methodologies geared prioritizing conservation biodiversity. Using a rapid review approach, 106 articles covering peer-reviewed studies, theses, and manuscripts under peer-review quantifying contaminants feathers were examined. Meta-analysis extracted information (n=91) revealed that most studies feather originate from Europe (47.6 %) Asia (32.9%), higher occurrence such between 2015 2020. utilized feather-type across body (28.6%) tail (20%). Majority the (60.5%) used alone to estimate contaminant exposure uptake; 14.8% blood, while 12.3% soft tissues (liver, kidney, muscle etc.). Inferences reveal as method provide advantages by having concentrations are relatable internal organs birds, captures ambient based exogenous contributions application historic However, some available data indicate selective uptake metals species could significantly reduce number stored may limit its accuracy biomonitoring. Furthermore, different degrees external deposition persistent organic (PCBs, PBDEs, etc) onto surface due differential degradability/metabolization use effects. Nonetheless, been successfully monitoring metals, metalloids pollutants, knowledge bird ontogeny contaminant-specific trends improve monitoring. Further broadening impact advancement this field future avian research especially countries is recommended.

Язык: Английский

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A retrospective investigation of feather corticosterone in a highly contaminated white-tailed eagle (Haliaeetus albicilla) population

Environmental Research, Год журнала: 2023, Номер 228, С. 115923 - 115923

Опубликована: Апрель 16, 2023

Exposure to persistent organic pollutants (POPs), such as organochlorines (OCs) and polybrominated diphenyl ethers (PBDEs), is associated with adverse health effects in wildlife. Many POPs have been banned consequently their environmental concentrations declined. To assess both temporal trends of detrimental impacts, raptors are extensively used biomonitors due high food web position contaminant levels. White-tailed eagles (WTEs; Haliaeetus albicilla) the Baltic ecosystem represent a sentinel species pollution, they suffered population declines reproductive failure caused by severe exposure dichlorodiphenyltrichloroethane (DDT) polychlorinated biphenyls (PCB) during 1960s through 1980s. However, there lack long-term studies that cover wide range contaminants at individual level. In this study, we 135 pooled samples shed body feathers collected 1968–2012 from breeding WTE pairs Sweden. Feathers constitute archive for substances incorporated into feather growth, including corticosterone, which primary avian glucocorticoid stress-associated hormone. Here, analysed pools investigate annual variations corticosterone (fCORT), (OCs PBDEs), stable carbon nitrogen isotopes (SIs; dietary proxies). We examined whether expected fluctuations affected fCORT (8–94 pg. mm−1) pairs. Despite clear declining POP (p < 0.01), found no significant associations between or SIs > 0.05 all cases). Our results do not support relevant biomarker contaminant-mediated WTEs despite studying highly contaminated population. although detecting relationship fCORT, contamination diet, represents non-destructive retrospective assessment stress physiology wild otherwise readily available.

Язык: Английский

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Microplastics Ingestion and Endocrine Disrupting Chemicals (Edcs) by Breeding Seabirds in the East Tropical Atlantic: Associations with Trophic and Foraging Proxies (Δ15n and Δ13c)

Опубликована: Янв. 1, 2023

The presence of Microplastics (MP) and endocrine disrupting chemicals (EDCs) in the marine environment poses potential risk to wildlife. MP can absorb release chemical compounds, making its ingestion potentially harmful, while EDCs become omnipresent, having tendency bioaccumulate food web. This study aims simultaneously role plastic ingestion, trophic foraging patterns (δ15N δ13C) a tropical seabird’s community relation exposure EDCs. Polybrominated diphenyl ethers (PBDEs), methoxylated polybrominated (MeO-PBDEs) personal care products (PCPs, e.g., Musk fragrances UV-filters) were measured preen oil serum five seabirds east Atlantic. occurrence detection frequency varied among species. Species with dual coastal strategy had more MP. MeO-PBDEs PCPs concentrations higher oil, whereas PBDEs serum. A significant correlation between ∑PBDEs concentration, was found only for brown booby, suggesting that is route. Trophic position (δ15N) important explain accumulation patterns, mainly observed Bulwer’s petrel, occupying high position. Foraging habitat (δ13C) associated MeO-BDEs, however concluding MeO-BDEs are related locations premature. results from biotransformation PBDEs. Overall, our address microplastic EDC gaps Atlantic seabird, providing crucial baseline future studies monitoring efforts.

Язык: Английский

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Concentration dynamics of polychlorinated biphenyls and organochlorine pesticides in blood of growing Grey heron (Ardea cinerea) chicks in the wild

Environmental Pollution, Год журнала: 2022, Номер 306, С. 119330 - 119330

Опубликована: Апрель 25, 2022

Язык: Английский

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