Memorias de investigación
Artículos en revistas:
Ecological connectivity analysis to reduce the barrier effect of roads. An innovative graph-theory approach to define wildlife corridors with multiple paths and without bottlenecks
Año:2015
Áreas de investigación
  • Ingenierías,
  • Transporte
Datos
Descripción
Ecological connectivity studies should be performed as baseline studies to prevent ecosystem fragmentation during the planning phase of a linear transport infrastructure. A landscape can be simplified as a graph network of habitat patches (nodes) and wildlife corridors (links) that connect them. Our analysis focused on roe deer (Capreolus capreolus L.), one of the large mammals most commonly hit by vehicles on the Spanish road network. We develop a network approach, implementing an iterative GIS methodology to obtain alternative corridors with comparable costs and without bottlenecks below a user-defined minimum width. This method enables the definition of the clearly delimited physical area of corridors according to a geometrical threshold width value, as well as multiple corridor connections for a pair of habitat patches. We compare the connectivity estimated with the least-cost path with our proposed methodology, observing even absence of significant differences at global scale, but not to local scale in our study area. Our results highlight the potential relative importance of each node habitat patch and corridor for the conservation of global connectivity. Finally, we discuss applications for locating habitat restoration as a compensatory measure and potential sites for wildlife crossings, creating new stepping stones and evaluating road layouts using the selected freeway as an example.
Internacional
Si
JCR del ISI
Si
Título de la revista
Landscape And Urban Planning
ISSN
0169-2046
Factor de impacto JCR
2,606
Información de impacto
Volumen
DOI
Número de revista
138
Desde la página
149
Hasta la página
162
Mes
MARZO
Ranking
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Participantes
  • Autor: Manuel Loro Aguayo TRANSyT
  • Autor: Emilio Ortega Perez UPM
  • Autor: Rosa Maria Arce Ruiz UPM
  • Autor: Davide Geneletti Department of Civil, Environmental and Mechanical Engineering, University of Trento
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Planificación del Transporte
  • Departamento: Ingeniería Civil: Transporte y Territorio
  • Centro o Instituto I+D+i: Centro de Investigación del Transporte
  • Departamento: Ingeniería y Gestión Forestal y Ambiental