A First Record of Organochlorine Pesticides in Barn Owls (Tyto alba) from Portugal: Assessing Trends from Variation in Feather and Liver Concentrations.

Autor: Roque I; MED-Mediterranean Institute for Agriculture, Environment and Development & CHANGE-Global Change and Sustainability Institute, LabOr-Laboratory of Ornithology, IIFA - Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554, Évora, Portugal. iroque@uevora.pt., Lourenço R; MED-Mediterranean Institute for Agriculture, Environment and Development & CHANGE-Global Change and Sustainability Institute, LabOr-Laboratory of Ornithology, IIFA - Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554, Évora, Portugal., Marques A; MED-Mediterranean Institute for Agriculture, Environment and Development & CHANGE-Global Change and Sustainability Institute, LabOr-Laboratory of Ornithology, IIFA - Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554, Évora, Portugal., Martínez-López E; Area of Toxicology, Faculty of Veterinary Medicine, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain., Espín S; Area of Toxicology, Faculty of Veterinary Medicine, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain.; Section of Ecology, Department of Biology, University of Turku, 20014, Turku, Finland., Gómez-Ramirez P; Area of Toxicology, Faculty of Veterinary Medicine, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain., García-Fernández AJ; Area of Toxicology, Faculty of Veterinary Medicine, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain., Roulin A; Department of Ecology and Evolution, University of Lausanne, Building Biophore, 1015, Lausanne, Switzerland., Rabaça JE; MED-Mediterranean Institute for Agriculture, Environment and Development & CHANGE-Global Change and Sustainability Institute, LabOr-Laboratory of Ornithology, IIFA - Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554, Évora, Portugal.; Department of Biology, School of Sciences and Technology, University of Évora, 7002-554, Évora, Portugal.
Jazyk: angličtina
Zdroj: Bulletin of environmental contamination and toxicology [Bull Environ Contam Toxicol] 2022 Sep; Vol. 109 (3), pp. 436-442. Date of Electronic Publication: 2022 Jul 24.
DOI: 10.1007/s00128-022-03576-6
Abstrakt: We evaluated feathers as a non-destructive biomonitoring tool documenting organochlorine pesticides (OCP) in liver and checked possible trends in pesticide use in two areas based on OCP concentrations in barn owls (Tyto alba). We measured the concentrations of 16 OCP in 15 primary feathers and 15 livers from barn owl carcasses collected on roadsides in Tagus Valley and Évora regions, south Portugal. Total OCP mean concentration was 8 120 ng g -1 in feathers and 178 ng g -1 in livers. All compounds were detected in feathers while in livers δ-HCH, endosulfan sulphate, p,p'-DDT and p,p'-DDD were not detected. The high β-HCH and heptachlor concentrations in feathers most likely derived from external endogenous contamination. P,p'-DDE was the OCP with the highest hepatic concentration. Both matrices indicated an exposure to recently released heptachlor. The differing OCP concentrations between Tagus Valley and Évora seem to reflect differences in land-use and pesticide use histories of the two locations, and/or faster degradation of OCP in the Tagus area.
(© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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