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Organochlorine pesticides in the ferruginous pygmy owl (Glaucidium brasilianum) in Chiapas, Mexico

Arrona Rivera, Alicia Elena [autora] | Enríquez Rocha, Paula Lidia [autora] | García Feria, Luis Manuel [autor] | Alvarado Orellana, Sergio [autor] | Rendón von Osten, Jaime [autor].
Tipo de material: Artículo
 en línea Artículo en línea Tipo de contenido: Texto Tipo de medio: Computadora Tipo de portador: Recurso en líneaTema(s): Plaguicidas organoclorados | Glaucidium brasilianum | Búhos | Especies en peligro de extinción | ContaminaciónTema(s) en inglés: Organochlorine pesticides | Glaucidium brasilianum | Owls | Endangered species | PollutionDescriptor(es) geográficos: Francisco Villa, Villaflores (Chiapas, México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Bulletin of Environmental Contamination and Toxicology. Volumen 97, número 3 (September 2016), páginas 337-345. --ISSN: 1432-0800Número de sistema: 6622Resumen:
Inglés

Concentrations of organochlorine pesticides were quantified in samples of feathers (n = 17) and blood (n = 15) of the ferruginous pygmy owl (Glaucidium brasilianum). The individuals were captured near the Protected Natural Area Cerro Sonsonate, Chiapas, Mexico, between February and June 2014. In both tissues, pesticides belonging to seven organochlorine chemical families were detected. However, the organochlorine pesticide concentrations differed between feathers and blood. The highest concentrations of hexachlorocyclohexanes were found in feathers (0.63 ± 0.89 μg/g), whereas the highest concentrations of ΣDrines were found in blood (0.31 ± 0.47 μg/mL). By using the summed concentrations for each of the seven families of pesticides found in feathers, we did not find any significant correlation between the pesticides and pectoral muscle or body weight (p > 0.15). The ΣDDT group was the only pesticide family that showed a positive correlation with owl body weight (r = 0.60, p = 0.05); the concentrations of these pesticides were also high in feather and blood tissues (r = 0.87, p = 0.02). Our results confirm that ferruginous pygmy owls in the study area are exposed to these pesticides.

Recurso en línea: https://link.springer.com/article/10.1007/s00128-016-1861-0
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Concentrations of organochlorine pesticides were quantified in samples of feathers (n = 17) and blood (n = 15) of the ferruginous pygmy owl (Glaucidium brasilianum). The individuals were captured near the Protected Natural Area Cerro Sonsonate, Chiapas, Mexico, between February and June 2014. In both tissues, pesticides belonging to seven organochlorine chemical families were detected. However, the organochlorine pesticide concentrations differed between feathers and blood. The highest concentrations of hexachlorocyclohexanes were found in feathers (0.63 ± 0.89 μg/g), whereas the highest concentrations of ΣDrines were found in blood (0.31 ± 0.47 μg/mL). By using the summed concentrations for each of the seven families of pesticides found in feathers, we did not find any significant correlation between the pesticides and pectoral muscle or body weight (p > 0.15). The ΣDDT group was the only pesticide family that showed a positive correlation with owl body weight (r = 0.60, p = 0.05); the concentrations of these pesticides were also high in feather and blood tissues (r = 0.87, p = 0.02). Our results confirm that ferruginous pygmy owls in the study area are exposed to these pesticides. eng

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