Comparing anticoagulant rodenticide exposure in barn owl (Tyto alba) and common kestrel (Falco tinnunculus): A biomonitoring study in an agricultural region of southeastern Spain.

Autor: Spadetto L; Toxicology Research Group, Faculty of Veterinary, IMIB-Pascual Parrilla, Campus de Espinardo, University of Murcia, 30100, Murcia, Spain. Electronic address: livia.spadetto@um.es., García-Fernández AJ; Toxicology Research Group, Faculty of Veterinary, IMIB-Pascual Parrilla, Campus de Espinardo, University of Murcia, 30100, Murcia, Spain. Electronic address: ajgf@um.es., Zamora-López A; ULULA Association for Owl Study and Conservation, 30100, Murcia, Spain; Department of Zoology and Physical Anthropology, Faculty of Biology, University of Murcia, 30100, Murcia, Spain., Zamora-Marín JM; ULULA Association for Owl Study and Conservation, 30100, Murcia, Spain; Department of Applied Biology, Centro de Investigación e Innovación Agroalimentaria (CIAGRO-UMH), Miguel Hernández University of Elche, Elche, Spain; Department of Zoology and Physical Anthropology, Faculty of Biology, University of Murcia, 30100, Murcia, Spain., León-Ortega M; ULULA Association for Owl Study and Conservation, 30100, Murcia, Spain., Tórtola-García M; ULULA Association for Owl Study and Conservation, 30100, Murcia, Spain., Tecles-Vicente F; Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Veterinary School, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, 30100, Murcia, Spain., Fenoll-Serrano J; Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, IMIDA, 30150, Murcia, Spain., Cava-Artero J; Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, IMIDA, 30150, Murcia, Spain., Calvo JF; Department of Ecology and Hydrology, Faculty of Biology, University of Murcia, 30100, Murcia, Spain., Gómez-Ramírez P; Toxicology Research Group, Faculty of Veterinary, IMIB-Pascual Parrilla, Campus de Espinardo, University of Murcia, 30100, Murcia, Spain.
Jazyk: angličtina
Zdroj: Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2024 Dec 01; Vol. 362, pp. 124944. Date of Electronic Publication: 2024 Sep 10.
DOI: 10.1016/j.envpol.2024.124944
Abstrakt: Second-generation anticoagulant rodenticides (SGARs) are commonly used for rodent control, affecting various non-target wildlife species. Here, blood samples from common kestrels (Falco tinnunculus, n = 70 chicks) and barn owls (Tyto alba, n = 54 chicks and 12 adults) from Southeastern Spain were analysed using HPLC-TQ. SGAR prevalence was 68.6% in kestrel chicks, 50% in barn owl chicks and 100% in adult barn owls, with multiple SGARs in both species. Prothrombin time analysis in barn owls revealed a positive correlation with blood ΣSGARs, suggesting a potential adverse effect on coagulation. Analysis of variables potentially influencing SGAR prevalence indicated that, for kestrels, it was only related to the extent of artificial surface, showing no differences across study sites. In owlets, the highest prevalence occurred in the most urbanized study site, with human population density being a key factor. This study highlights species-specific differences in SGAR exposure, likely influenced by ecological traits. Barn owls probably encounter contaminated prey near anthropized areas, with widespread SGAR use and higher presence of target rodents. Conversely, kestrels, hunting a variety of prey often near human settlements, face consistently elevated exposure from multiple sources. Understanding these variations is crucial for effective conservation and minimizing SGAR impact on non-target wildlife.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: