Motorway verges: paradise for prey species? A case study with the European rabbit.

Roads have many effects on the mammal populations of their surroundings. Prey species are thought to establish dense populations in road verges due to a predation release effect, which arise as a side-effect of roadside avoidance by predators and/or predator roadkill. A species that has been suggested to benefit from predation release and attain high densities near roads is the European rabbit, a keystone species in Mediterranean ecosystems. We monitored rabbit relative abundance at three distances from a motorway (50, 450 and 850 m) during a 6 month period, as well as hunting and predator pressures, in a suitable area for rabbits. The lowest rabbit abundance was found next to the motorway (6.76 ± 8.87 pellets/m2 per month) and the highest abundance at an intermediate distance (17.65 ± 23.11 pellets/m2 per month). Hunting and carnivore pressures were highest at the sampling transect located farthest from the infrastructure. Thus, variability in rabbit abundance did not match the predation release effect found close to the motorway, and some sort of road avoidance or other process must underlie the observed abundance pattern. We advocate for a formal measurement of prey populations response to roads prior to any generalization as, in the case of rabbit, the response to roads and the potential cascading effects on other species may depend on landscape characteristics. Palabras clave: Motorway, Rabbit, Verge

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Planillo A. y Malo J.E. Motorway verges: paradise for prey species? A case study with the European rabbit. Elsevier, 2013. https://doi.org/10.1016/j.mambio.2012.11.001

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Fecha de creación 02-12-2024
Fecha de última modificación 19-01-2025
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Identificador de los metadatos 34c54309-5766-5d5f-832b-92c08e9478de
Idioma de los metadatos Español
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Categoría temática ISO 19115 biota
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Nombre del autor Planillo, A. y Malo, J.E.
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Identificador alternativo DOI: 10.1016/j.mambio.2012.11.001
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