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resumen

Resumen
Contamination with current-use pesticides is frequently mentioned as a key factor in global amphibian declines although a limited number of studies have examined the mixture of pesticides accumulated by free-living frogs. This study examined the presence of 46 different pesticide residues in the muscle and kidney tissues of two frog species living in close association with row crops in the Pampa region of Argentina: The terrestrial Leptodactylus latinasus [ver mas...]
dc.contributor.authorBrodeur, Julie Céline
dc.contributor.authorDamonte, María Jimena
dc.contributor.authorRojas, Dante Emanuel
dc.contributor.authorCristos, Diego Sebastian
dc.contributor.authorVargas, Claudia
dc.contributor.authorPoliserpi, Maria Belen
dc.contributor.authorAndriulo, Adrian Enrique
dc.date.accessioned2021-12-13T10:10:29Z
dc.date.available2021-12-13T10:10:29Z
dc.date.issued2021-11
dc.identifier.issn0013-9351
dc.identifier.otherhttps://doi.org/10.1016/j.envres.2021.112354
dc.identifier.urihttp://hdl.handle.net/20.500.12123/10889
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0013935121016558
dc.description.abstractContamination with current-use pesticides is frequently mentioned as a key factor in global amphibian declines although a limited number of studies have examined the mixture of pesticides accumulated by free-living frogs. This study examined the presence of 46 different pesticide residues in the muscle and kidney tissues of two frog species living in close association with row crops in the Pampa region of Argentina: The terrestrial Leptodactylus latinasus and the semi-aquatic Leptodactylus latrans. A total of 20 different pesticides were identified in frog tissues; chlorpyrifos-methyl, pirimiphos-methyl and acetochlor being the most frequently detected molecules. Overall, one or more pesticide residues (up to 12 in a single frog) were detected in 40–57 % of L. latrans. L. latinasus was found to present more pesticide detections than L. latrans. Interestingly, frog sampled in a natural reserve where no pesticides are applied presented an equivalent frequency of detections as frogs living near a crop. In L. latrans, the calculation of a pesticide toxicity index (PTI) permitted to highlight the existence of a strong positive correlation between PTI and liver GSH contents of females whereas, in males, PTI was negatively correlated with the perimeter of testicular seminiferous tubules. Males also presented near significant negative correlations between PTI and both body condition and the scaled fat index. These results indicate that frogs inhabiting agricultural regions are exposed to a complex and diffuse contamination by pesticide mixtures which is likely responsible for a number of biological effects that may be relevant at the population level.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.relationinfo:eu-repograntAgreement/INTA/PNNAT-1128043/AR./Los agroquímicos como fuente de contaminación difusa en agroecosistemas.
dc.relationinfo:eu-repograntAgreement/INTA/2019-PE-E2-I054-001/2019-PE-E2-I054-001/AR./Gestión sostenible de fitosanitarios
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceEnvironmental Research 204 (Part D) : 112354. (March 2022)es_AR
dc.subjectAgriculturaes_AR
dc.subjectAgricultureeng
dc.subjectContaminaciónes_AR
dc.subjectContaminationeng
dc.subjectPlaguicidases_AR
dc.subjectPesticideseng
dc.subjectToxicidad de los Pesticidases_AR
dc.subjectPesticide Toxicityeng
dc.subjectAnfibioses_AR
dc.subjectAmphibianseng
dc.subjectRanaes_AR
dc.subjectFrogseng
dc.subject.otherRegión Pampeanaes_AR
dc.titleConcentration of current-use pesticides in frogs from the Pampa region and correlation of a mixture toxicity index with biological effectses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Pergaminoes_AR
dc.description.filFil: Brodeur, Julie Céline. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentinaes_AR
dc.description.filFil: Brodeur, Julie Céline. Consejo de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Damonte, María Jimena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentinaes_AR
dc.description.filFil: Rojas, Dante Emanuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentinaes_AR
dc.description.filFil: Cristos, Diego Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentinaes_AR
dc.description.filFil: Vargas, Claudia. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Microbiología y Parasitología Médica; Argentinaes_AR
dc.description.filFil: Poliserpi, Maria Belen. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentinaes_AR
dc.description.filFil: Andriulo, Adrián. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Laboratorio de Suelo; Argentinaes_AR
dc.subtypecientifico


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