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Spatiotemporal variations of organochlorine pesticides in an apex predator: Influence of government regulations and farming practices


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Título :
Spatiotemporal variations of organochlorine pesticides in an apex predator: Influence of government regulations and farming practices
Autor :
Gómez-Ramírez, Pilar  
Pérez-García, Juan Manuel  
León-Ortega, Mario
Martínez, José Enrique  
Calvo, José Francisco  
Sánchez Zapata, José Antonio  
Botella Robles, Francisco  
María Mojica, Pedro  
Martínez-Lopez, Emma  
García-Fernández, Antonio Juan
Editor :
Elsevier
Departamento:
Departamentos de la UMH::Biología Aplicada
Fecha de publicación:
2019-06-20
URI :
https://hdl.handle.net/11000/31145
Resumen :
Background: Intensification of agricultural practices has caused several negative effects to the environment. The use of fertilizers and pesticides may alter geochemical cycles or cause direct wildlife intoxication. Detrimental effects of organochlorine pesticides (OCPs) have forced the authorities to ban or restrict its use. This study evaluates the variation in levels of OCPs in a sentinel species in relation to changes in government regulations and the spatial configuration of agricultural practices around the nests. Methods: Between 2003 and 2007, we analysed OCP levels in 256 blood samples of Eurasian Eagle-owl (Bubo bubo) chicks nesting in area of intensive commercial agriculture with historical frequent use of pesticides, in South-eastern Spain. We studied year-to-year variations in OCP concentrations and their relation with land use configuration around raptor nests by Generalized Linear Mixed Models (GLMM). Results: OCPs were detected in 100% samples surveyed in 2003 and 2004, while dropped to 27% in 2005, 6.8% in 2006 and 6.3% in 2007, coinciding with the ban of OCPs. The presence of the main OCPs was related to agricultural practices. In particular, endosulfan and lindane were related to irrigated crops and urban areas, while DDT-related compounds and dieldrin were associated with dry land farming. Conclusions: OCP concentrations in blood samples of Eurasian Eagle-owls may respond quickly to the implementations of new regulations about the use of agricultural products. This raptor was confirmed as a good sentinel species allowing rapid detection of changes in pesticides use.
Palabras clave/Materias:
agriculture intensification
biomonitoring
bubo bubo
eagle-owl
ecotoxicology
organochlorine pesticides
south-eastern Spain
Área de conocimiento :
CDU: Ciencias puras y naturales: Biología: Ecología general y biodiversidad
Tipo documento :
application/pdf
Derechos de acceso:
info:eu-repo/semantics/closedAccess
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
DOI :
https://doi.org/10.1016/j.envres.2019.108543
Aparece en las colecciones:
Artículos Biología Aplicada



Creative Commons La licencia se describe como: Atribución-NonComercial-NoDerivada 4.0 Internacional.