Lead exposure in an urban, free-ranging parrot: Investigating prevalence, effect and source attribution using stable isotope analysis

Sriram, Aditi; Roe, Wendi D.; Booth, Matu; Gartrell, Brett D.

doi:10.1016/j.scitotenv.2018.03.267

Cited by 19 publications

(20 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…, Sriram et al. ). Consistent with other research on Pb exposure in avian scavengers, we observed a positive relationship between 206 Pb/ 207 Pb isotope ratios and whole‐blood Pb concentrations (Church et al.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

The lead (Pb) lining of agriculture‐related subsidies: enhanced Golden Eagle growth rates tempered by Pb exposure

et al. 2020

View full text Add to dashboard Cite

2020. The lead (Pb) lining of agriculture-related subsidies:enhanced Golden Eagle growth rates tempered by Pb exposure. Ecosphere 11(1):Abstract. Supplementary food resources (e.g., subsidies) associated with agriculture can benefit wildlife species, increasing predictability and availability of food. Avian scavengers including raptors often utilize subsidies associated with both recreational hunting and pest shooting on agricultural lands. However, these subsidies can contain lead (Pb) fragments if they are culled with Pb-based ammunition, potentially leading to Pb poisoning and physiological impairment in wildlife. Nesting Golden Eagles (Aquila chrysaetos) commonly forage in agricultural lands during the breeding season, and therefore, both adults and their nestlings are susceptible to Pb exposure from scavenging shot wildlife. We assessed drivers of Pb exposure in 258 nestling Golden Eagles (401 total blood samples), along with physiological and growth responses, in agricultural lands across four western states in the United States. We also evaluated the birds' Pb stable isotope signatures to inform exposure sources. Twenty-six percent of Golden Eagle nestlings contained Pb concentrations associated with subclinical poisoning for sensitive species (0.03-0.2 lg/g ww), 4% had Pb concentrations that exceeded subclinical poisoning benchmarks (0.2-0.5 lg/g ww), and <1% exceeded either concentrations associated with clinical poisoning (0.5-1.0 lg/g ww) and or those deemed to cause severe clinical poisoning (>1.0 lg/g ww). Lead concentrations were highest in nestlings with close proximity to fields that potentially provided subsidies and declined exponentially as distance to subsidies increased. However, close proximity to agriculture, and presumably subsidies, positively influenced nestling growth rates. Across the range of Pb exposure, nestlings experienced a 67% reduction in delta-aminolevulinic acid dehydratase (d-ALAD) activity, suggesting nestlings may have been anemic or experiencing cellular damage. Isotopic ratios of 206 Pb/ 207 Pb increased non-linearly with increasing blood Pb in Golden Eagle nestlings, and 45% of the birds were consistent with those of ammunition. However, above 0.10 lg/g ww, the proportion associated with ammunition increased to 89% of the nestlings. An improved understanding of how these positive (growth) and negative (physiology) effects associated with proximity to subsidies interact would be beneficial to managers when considering management scenarios and potentially evaluating any measures taken to reduce Pb exposure across the landscape.

show abstract

Section: Discussionmentioning

confidence: 99%

“…, Sriram et al. ). To understand potential sources of Pb exposure in Golden Eagle nestlings, we randomly selected a subset of blood samples for analysis of Pb stable isotope ratios that spanned the entire range of Pb exposure we previously identified in the Pb‐analysis stage.…”

Section: Methodsmentioning

confidence: 99%

The lead (Pb) lining of agriculture‐related subsidies: enhanced Golden Eagle growth rates tempered by Pb exposure

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Por fim deposita-se na matriz óssea ocupando o local do cálcio, interferindo na remodelação óssea e na síntese de ovos (Krone, 2018). A dosagem de Pb no sangue demonstra uma exposição recente do indivíduo, em média de 30 dias (Binkowski, et al, 2016;Sriram, et al, 2018;Kruger & Amar, 2018).…”

Section: Amostras E Biomarcadores De Chumbounclassified

“…Um estudo realizado na Nova Zelândia por Sriram et al (2018) dosou a concentração de Pb no sangue em indivíduos de Nestor meridionalis septentrionalis de áreas urbanas. Das aves analisadas, 43,2% apresentaram níveis de exposição ao chumbo, sendo que 87% possuíam concentração de Pb abaixo de 20 μg/dL.…”

Section: Amostras E Biomarcadores De Chumbounclassified

“…Enquanto Kruger e Amar (2018) sugerem que concentrações acima de 40 µg/dL já demonstram sinais de intoxicações em rapinantes e abutres. Em um estudo com Nestor meridionalis septentrionalis foi encontrado concentração de chumbo de 50,7 μg/dL em um animal com sinais de intoxicação, enquanto a maioria dos expostos não apresentavam sinais clínicos tiveram dosagem de Pb abaixo de 20 μg/dL (Sriram, et al, 2018). Em tecidos hepáticos as concentrações de Pb atingem níveis de intoxicação subclínica de 2,0 a 6,0 ppm, intoxicação clínica de 6,0 a 15,0 ppm e envenenamento clínico severo em concentrações acima de 15,0 ppm (Kanstrup, et al, 2019;Herring & Eagles-Smith, 2017).…”

Section: Diagnóstico E Tratamentounclassified

See 1 more Smart Citation

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

Stark

Bonfada

Paula

et al. 2021

RSD

View full text Add to dashboard Cite

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

show abstract

Source apportionment based on lead isotope ratios: Could domestic dog's blood lead be used to identify the level and sources of lead pollution in children?

Chen

Duan²,

Cao³

et al. 2022

Chemosphere

View full text Add to dashboard Cite

Lead exposure in an urban, free-ranging parrot: Investigating prevalence, effect and source attribution using stable isotope analysis

Cited by 19 publications

References 45 publications

The lead (Pb) lining of agriculture‐related subsidies: enhanced Golden Eagle growth rates tempered by Pb exposure

The lead (Pb) lining of agriculture‐related subsidies: enhanced Golden Eagle growth rates tempered by Pb exposure

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

Source apportionment based on lead isotope ratios: Could domestic dog's blood lead be used to identify the level and sources of lead pollution in children?

Contact Info

Product

Resources

About