PFAS Exposure is Associated with a Lower Spermatic Quality in an Arctic Seabird

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(44), P. 19617 - 19626

Published: Oct. 23, 2024

Several studies have reported an increasing occurrence of poly- and perfluorinated alkyl substances (PFASs) in Arctic wildlife tissues, raising concerns due to their resistance degradation. While some research has explored PFAS's physiological effects on birds, impact reproductive functions, particularly sperm quality, remains underexplored. This study aims assess (1) potential association between PFAS concentrations blood quality black-legged kittiwakes (Rissa tridactyla), focusing the percentage abnormal spermatozoa, velocity, motility, morphology; (2) examine plasma levels testosterone, corticosterone, luteinizing hormone with both parameters possible endocrine disrupting pathways. Our findings reveal a positive correlation concentration longer-chain perfluoroalkyl carboxylates (PFCA; C11–C14) kittiwakes. Additionally, we observed that two other (i.e., PFOSlin PFNA), distinct from those associated abnormalities, were positively correlated stress corticosterone. These emphasize potentially harmful substance-specific long-chain PFCAs seabirds need for further into pollutants as additional detrimental effect birds.

Language: Английский

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Duplicate genes as sources for rapid adaptive evolution of sperm under environmental pollution in tree sparrow

Molecular Ecology, Journal Year: 2022, Volume and Issue: 32(7), P. 1673 - 1684

Published: Dec. 26, 2022

Environmental pollution can result in poor sperm quality either directly or indirectly birds. However, adaptive and compensatory morphology changes motility improvements have rapidly evolved tree sparrows (Passer montanus) inhabiting polluted areas over the past 65 years. To identify genetic underpinnings of evolving phenotype, we carried out population genomics transcriptomics on sparrow populations two differently places. We identified a gene encoding serine/threonine protein kinase PIM1, which may drive rapid phenotypic evolution sperm. An unprecedented remarkable expansion PIM family, caused by tandem segmental duplication was subsequently observed genome. Most PIM1 duplicates showed testis-specific expression pattern, suggesting that their functions are related to male reproduction. Furthermore, elevated level consistent with our earlier findings longer faster swimming sites, indicating an important role for duplicated facilitating Our results suggest provides sources variation enable under environmental heavy metal pollution. The this study indicated genes be targets selection predominant adaptation change shed light stress.

Language: Английский

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Occurrence, Human Exposure, and Risk Assessment of Polybrominated Dibenzo-p-Dioxins and Dibenzofurans, Polychlorinated Naphthalenes, and Metals in Atmosphere Around Industrial Parks in Jiangsu, China

Bulletin of Environmental Contamination and Toxicology, Journal Year: 2021, Volume and Issue: 106(4), P. 683 - 689

Published: Feb. 15, 2021

Language: Английский

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Passerine Birds

Published: Jan. 26, 2024

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Dynamics of Heavy Metals in the Blood of House Sparrows (Passer domesticus) Across Different Urban Habitats in Meknes, Morocco

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 14, 2024

This study examines the accumulation of heavy metals (lead, cadmium, and zinc) in blood house sparrows (Passer domesticus) across various urban habitats Meknes, Morocco. Fifty adult were captured from five distinct sites, including industrial, high-traffic, rural areas. Blood samples analyzed using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). Results show significant variations metal concentrations depending on site. The highest levels found industrial zone, with lead (Pb) at 336.02 µg/L, cadmium (Cd) 12.28 zinc (Zn) 1736.09 µg/L. Principal Component Analysis (PCA) K-means clustering revealed three pollution clusters: Cluster 0 (high Zn, low Pb Cd), 1 (moderate all metals), 2 metals). These findings highlight ecological health risks associated value as effective bioindicators.

Language: Английский

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Physiological and Toxicological Effects of Nano/Microplastics on Marine Birds

Advances in environmental engineering and green technologies book series, Journal Year: 2024, Volume and Issue: unknown, P. 257 - 288

Published: Sept. 25, 2024

Micro/nano plastics are emerging as a severe threat to marine birds/ environment worldwide due anthropogenic litter. Increase in production of microplastics combined with inefficient waste management has led its bioaccumulation the environment. Marine sea birds known bioindicators for plastic pollution they get absorbed and accumulated tissues these birds. Negative effects on based toxicological consequences that can be observed their ingestion like starvation, suffocation, entanglement. In majority cases, easily taken up by which results disturbance physiology skin lesions, diminished body weight, fledgling success, reproductive output. conclusion, this chapter demonstrates current status effect microplastic ecosystem related at-risk species will help create awareness regard policies advanced technologies present reduce

Language: Английский

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Intoxicação por chumbo: conflitos ambientais na América do Sul e perspectiva sob a conservação de aves silvestres

Research Society and Development, Journal Year: 2021, Volume and Issue: 10(2), P. e42510212701 - e42510212701

Published: Feb. 21, 2021

O chumbo é um metal não essencial tóxico encontrado em diversas formas químicas, portanto, pode causar poluição atmosférica, terrestre e aquática. A principal fonte de se deve a ação antrópica, através da utilização munições à base chumbo, pesca, combustível, mineração, incineração lixo atividade industrial. objetivo presente revisão demonstrar o conhecimento atual sobre as fontes contaminação por os sinais clínicos lesões observadas aves silvestres, diagnóstico tratamento, impactos na biodiversidade medidas prevenção. Para realização do estudo, foi utilizado pesquisa artigos nas bases científicas PubMed, portal periódicos CAPES, SciELO Google Acadêmico, no recorte temporal 2015 2020. partir dos estudos elencados, observou-se que animais são frequentemente encontrados com alterações subclínicas, clínicas ou mortos seus habitats naturais. literatura afirma efeitos organismo variam acordo dose, tempo exposição via intoxicação, logo, consequências saúde das silvestres inúmeras. Concluiu-se substituição outros componentes, normativas conscientização seu descarte, resultam ganhos conservação natureza melhoria biodiversidade.

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Improvement of sperm traits related to the high level of extra-pair fertilization in tree sparrow population under long-term environmental heavy metal pollution

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 790, P. 148109 - 148109

Published: May 29, 2021

Language: Английский

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Nanoremediation of pollutants: A conspectus of heavy metals degradation by nanomaterials

Elsevier eBooks, Journal Year: 2022, Volume and Issue: unknown, P. 229 - 239

Published: Jan. 1, 2022

Language: Английский

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