Species-specific movement traits and specialization determine the spatial responses of small mammals towards roads.

The barrier effect is a pervasive impact of road networks. For many small mammals individual avoidance responses can be the mechanism behind the barrier effect. However, little attention has been paid to which species and road characteristics modulate road avoidance and mortality risk. We measured the strength of the barrier effect imposed by the road on three rodent species with different body sizes and habitat specializations: Southern water vole (Arvicola sapidus), Mediterranean pine vole (Microtus duodecimcostatus) and Algerian mouse (Mus spretus). We analysed the effect of traffic intensity on use of space and direction of movement and the effect of road type (4-lane highway, 2-lane paved road and 1-lane unpaved road) on crossing rates with simulations of roads bisecting each home range. Finally, we estimated annual mortality risk from collision based on individual speed, crossing rates, body length …

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Grilo C. Molina-Vacas G. Fernández-Aguilar X. Rodriguez-Ruiz J. Ramiro V. Porto-Peter F. Ascensão F. Román J. y Revilla E. Species-specific movement traits and specialization determine the spatial responses of small mammals towards roads. Elsevier, 2018. https://doi.org/10.1016/j.landurbplan.2017.09.014

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Resource type Text
Date of creation 2025-05-23
Date of last revision 2025-05-23
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Metadata identifier 5558d8d8-caa7-51e3-80f8-27ea245dc025
Metadata language Spanish
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ISO 19115 topic category biota
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Name of the dataset creator Grilo, C., Molina-Vacas, G., Fernández-Aguilar, X., Rodriguez-Ruiz, J., Ramiro, V., Porto-Peter, F., Ascensão, F., Román, J. y Revilla, E.
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Other identifier DOI: 10.1016/j.landurbplan.2017.09.014
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