RT Journal Article
T1 The spatial distribution of animal casualties within a road corridor: Implications for roadkill monitoring in the southern Iberian rangelands.
A1 Delgado García, Juan Domingo
A1 Durán Humia, Jorge
A1 Rodríguez Pereiras, Alexandra
A1 Rosal Raya, Antonio
A1 Palenzuela-Ruiz, María Valle
A1 Morelli, Federico
A1 Arroyo, Natalia L.
A1 Rodríguez Sánchez, Jesús Luis
K1 Traffic intensity
K1 Wildlife
K1 Roadkill
K1 Casualty locations
K1 Seasonal variation
K1 Road profile
K1 WVC
AB We assessed wildlife roadkill spatial patterns focusing on asphalt roads in southern Spanish oak rangelands (“dehesas”). Four roads in the Sierra Morena range (Andalusia) were surveyed twice during autumn-winter 2009–2010 and spring-summer 2010. Roadsides were walked on both sides across the total road length (53 km; overall length walked per season = 106 km) for each field season by 1–4 trained observers at ∼1–2 km/h. Asphalt surface, road verges/shoulders, runoff ditches and road banks/slopes (neighboring habitat) were exhaustively inspected for all dead vertebrates, which were georeferenced and identified. Roadkills (N = 396) were classified into 67 species (5 amphibians, 7 reptiles, 37 birds and 18 mammals). In total, 128 (32.3%) of all roadkills were found within the road asphalt lanes, with the remaining two-thirds (268, 67.7%) outside the asphalt lanes. This pattern was consistent regardless of season and several structural attributes of roads. However, vertebrate class was determinant, with more poiquilotherms (amphibians and reptiles) being detected inside asphalt compared to birds and mammals (off-asphalt casualties were significantly more numerous). This is a strong argument in favor of recommending surveying roadkill on foot as a main survey method or complementarily to vehicle surveys.
PB Elsevier
YR 2019
FD 2019
LK https://hdl.handle.net/10433/22110
UL https://hdl.handle.net/10433/22110
LA en
NO Juan D. Delgado, Jorge Durán Humia, Alexandra Rodríguez Pereiras, Antonio Rosal, María del Valle Palenzuela, Federico Morelli, Natalia L. Arroyo Hernández, Jesús Rodríguez Sánchez, The spatial distribution of animal casualties within a road corridor: Implications for roadkill monitoring in the southern Iberian rangelands, Transportation Research Part D: Transport and Environment, Volume 67, 2019, Pages 119-130, ISSN 1361-9209, https://doi.org/10.1016/j.trd.2018.11.017.
NO The authors acknowledge the help of the grant “Ayuda P.P. 11.10, Grupos Emergentes” of the Universidad Pablo de Olavide, Seville, Spain, for economic support in the realization of this work. We thank the assistance of Gabriel Gonzalez-Escamilla and José María (Chema) Asensio with the field work. We thank José María Martín Ramírez for helping us with GIS data processing.P.P. 11.10
NO Universidad Pablo de Olavide. Departamento de Biología Molecular e Ingeniería Bioquímica
DS RIO
RD May 9, 2026