RT Journal Article T1 Differential exposure to second-generation anticoagulant rodenticides in raptors from continental and insular regions of the Iberian Peninsula A1 Martín Cruz, Beatriz A1 Rial Berriel, Cristian A1 Acosta Dacal, Andrea A1 Carromeu Santos, Ana A1 Simbaña Rivera, Katherine A1 Gabriel, Sofia I. A1 Pastor Tiburón, Natalia A1 González González, Fernando A1 Fernández Valeriano, Rocío A1 Henríquez Hernández, Luis Alberto A1 Zumbado Peña, Manuel A1 Luzardo, Octavio P. AB The global impact of anticoagulant rodenticides (ARs) on non-target species is well-recognized. Birds of prey, as apex predators, are highly vulnerable to AR exposure and are widely used as biomonitors for priority pollutants in Europe. This study investigates differential SGAR exposure in raptors from insular versus continental regions, hypothesizing greater exposure in insular areas due to ecological factors like reduced prey diversity, intensive rodenticide use, and resistant rodent populations. We analyzed the livers of 190 common kestrels (Falco tinnunculus) and 104 common buzzards (Buteo buteo) across the Iberian Peninsula and its archipelagos using LC-MS/MS to assess their role as AR sentinels and the differences between insular and continental areas. Results revealed a high prevalence (>80%) of second-generation anticoagulant rodenticides (SGARs), with brodifacoum and bromadiolone, being the most frequent. Multiple SGAR detections were also common (≈50%). A binomial logistic regression showed that species and region significantly influence the likelihood of SGAR exposure. Kestrels had a greater probability of exceeding 100 ng/g wet weight (ww) compared to buzzards. Raptors from insular territories were ten times more likely to have higher SGAR concentrations than those from continental areas. However, the legal restriction on SGAR bait concentrations that came into effect in 2018 did not significantly impact exposure levels. This study highlights the need for targeted conservation efforts to mitigate AR exposure risk in vulnerable island ecosystems. PB Elsevier SN 0269-7491 YR 2024 FD 2024 LK https://hdl.handle.net/20.500.14352/109429 UL https://hdl.handle.net/20.500.14352/109429 LA eng NO Martín Cruz, B., Rial Berriel, C., Acosta Dacal, A., Carromeu-Santos, A., Simbaña-Rivera, K., Gabriel, S. I., Pastor Tiburón, N., González González, F., Fernández Valeriano, R., Henríquez-Hernández, L. A., Zumbado-Peña, M., & Luzardo, O. P. (2024). Differential exposure to second-generation anticoagulant rodenticides in raptors from continental and insular regions of the Iberian Peninsula. Environmental pollution (Barking, Essex : 1987), 362, 125034. Advance online publication. https://doi.org/10.1016/j.envpol.2024.125034 NO Beca Doctoral PIFULPGC-2020-CCSALUD-1 para Beatriz Martín CruzBeca Post-Doctoral para Cristian Rial-Berriel (APCR2022010002) y Andrea Acosta-Dacal (APCR2022010003)Beca Doctoral PD/BD/150550/2019 para Ana Carromeu-Santos UIDP/50017/2020+UIDB/50017/2020+LA/P/0094/2020 Sofia I. Gabriel NO Universidad de Las Palmas de Gran Canaria NO Gobierno de Canarias NO Fundação para a Ciência e a Tecnologia (Portugal) DS Docta Complutense RD 10 abr 2025