Permeability of roads and railways to vertebrates: the importance of culverts

Culverts seem to increase the permeability of roads and railways for a wide set of vertebrate groups (amphibians, reptiles, small mammals, lagomorphs, and carnivores). None of the three culverts having detritus pits in the sample studied by these authors was used by lagomorphs and carnivores, in contrast with results obtained by Rodríguez et al. (1996, 1997). The presence of these pits also negatively influenced the use of culverts by reptiles. This could be interpreted as a physical (rabbits) or behavioural obstacle (carnivores, reptiles) which might lower locally (around the passages) the permeability of the infrastructure to the transversal movement of these vertebrates, as compared with sites where culverts have no pits. Culverts are thought to function as a link between disturbed roadside verges, which make up suitable habitats for small mammals. Structural heterogeneity provided by debris accumulated inside culverts might further improve habitat continuity for these animals. However, small mammals were very sensitive to culvert dimensions: they were more prone to use short culverts with large sections. Rodríguez et al. (1996) found the opposite preference. However roadside verges are not always suitable for medium-sized mammals (rabbits and carnivores) which together with the width of the infrastructure affected negatively crossing frequencies across culverts and, consequently, local permeability. Access to culvert entrances to medium-sized and large mammals (mainly ungulates) is often blocked by roadside fences, which usually are 2 m high. Palabras clave: Amphibian, Barrier, Fence, Mammal, Mitigation, Rabbit, Reptile, Underpass, Ungulate

Datos y Recursos

Cite como

Yanes M. Velasco J.M. y Suárez F. Permeability of roads and railways to vertebrates: the importance of culverts. Elsevier, 1995. https://doi.org/10.1016/0006-3207(94)00028-O

Clipboard Icon
Recuperado: 19 Jan 2025 18:56:46
RIS BibTeX

Metadatos
Descargar
DCAT-AP/NTI-RISP

Información básica
Tipo de recurso Texto
Fecha de creación 02-12-2024
Fecha de última modificación 19-01-2025
Mostrar histórico de cambios
Identificador de los metadatos 2063b7c2-f31f-5965-aa0e-b787b8c5eb6a
Idioma de los metadatos Español
Temáticas (NTI-RISP)
Categoría del conjunto de alto valor (HVD)
Categoría temática ISO 19115 biota
URI de palabras clave
Información bibliográfica
Nombre del autor Yanes, M., Velasco, J.M. y Suárez, F.
Nombre del editor Elsevier
Identificador alternativo DOI: 10.1016/0006-3207(94)00028-O
Identificador del autor
Email del autor
Web del autor
Procedencia
Declaración de linaje
Perfil de Metadatos
Notas sobre la versión
Versión