Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Scale dependence in habitat selection: the case of the endangered brown bear (Ursus arctos) in the Cantabrian Range (NW Spain)
Año:2013
Áreas de investigación
  • Monte
Datos
Descripción
Animals select habitat resources at multiple spatial scales. Thus, explicit attention to scale dependency in species?habitat relationships is critical to understand the habitat suitability patterns as perceived by organisms in complex landscapes. Identification of the scales at which particular environmental variables influence habitat selection may be as important as the selection of variables themselves. In this study, we combined bivariate scaling and Maximum entropy (Maxent) modeling to investigate multiscale habitat selection of endangered brown bear (Ursus arctos) populations in northwest Spain. Bivariate scaling showed that the strength of apparent habitat relationships was highly sensitive to the scale at which predictor variables are evaluated. Maxent models on the optimal scale for each variable suggested that landscape composition together with human disturbances was dominant drivers of bear habitat selection, while habitat configuration and edge effects were substantially less influential. We found that explicitly optimizing the scale of habitat suitability models considerably improved single- scale modeling in terms of model performance and spatial prediction.We found that patterns of brown bear habitat suitability represent the cumulative influence of habitat selection across a broad range of scales, from local resources within habitat patches to the landscape composition at broader spatial scales
Internacional
Si
JCR del ISI
Si
Título de la revista
International Journal of Geographical Information Science
ISSN
1365-8816
Factor de impacto JCR
Información de impacto
Volumen
DOI
Número de revista
28
Desde la página
1
Hasta la página
16
Mes
SIN MES
Ranking
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Participantes
  • Autor: Maria Cruz Mateo Sanchez (UPM)
  • Autor: Samuel Cushman (US Forest Service, Rocky Mountain Research)
  • Autor: Santiago Fulgencio Saura Martinez de Toda (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ecología y Gestión Forestal Sostenible
  • Grupo de Investigación: Economía y Sostenibilidad del Medio Natural
  • Departamento: Proyectos y Planificación Rural
S2i 2022 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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