Arrona-Rivera Alicia E, Enríquez Paula L, García-Feria Luis M, Orellana Sergio Alvarado, von Osten Jaime Rendón
El Colegio de la Frontera Sur, San Cristóbal de Las Casas, Chiapas, Mexico.
Instituto de Ecología, A.C, Xalapa, Veracruz, Mexico.
Bull Environ Contam Toxicol. 2016 Sep;97(3):337-45. doi: 10.1007/s00128-016-1861-0. Epub 2016 Jul 5.
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.
对棕腰美洲雕鸮（Glaucidium brasilianum）的羽毛样本（n = 17）和血液样本（n = 15）中的有机氯农药浓度进行了定量分析。这些个体于2014年2月至6月间在墨西哥恰帕斯州的塞罗索诺特自然保护区附近捕获。在这两种组织中，均检测到了属于七个有机氯化学类别的农药。然而，羽毛和血液中的有机氯农药浓度有所不同。羽毛中六氯环己烷的浓度最高（0.63±0.89μg/g），而血液中Σ狄氏剂的浓度最高（0.31±0.47μg/mL）。通过对羽毛中发现的七个农药类别各自的总浓度进行分析，我们未发现农药与胸肌或体重之间存在任何显著相关性（p>0.15）。Σ滴滴涕组是唯一与雕鸮体重呈正相关的农药类别（r = 0.60，p = 0.05）；这些农药在羽毛和血液组织中的浓度也很高（r = 0.87，p = 0.02）。我们的结果证实，研究区域内的棕腰美洲雕鸮接触到了这些农药。
