• español
  • English
  • français
  • Deutsch
  • português (Brasil)
  • italiano
  • Contact Us
  • Send Feedback
  • Enlaces y accesos
    • Derechos de autor
    • Políticas
    • Guía de autoarchivo
    • FAQ y ayuda
    • La ULE y el Acceso Abierto
    • español
    • English
    • français
    • Deutsch
    • português (Brasil)
    • italiano
    • español
    • English
    • français
    • Deutsch
    • português (Brasil)
    • italiano
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Repositorio
    Institucional
    Abierto

    Browse

    All of BULERIACommunities and CollectionsAuthorsDirectoresTitlesSubjectsFacultad/CentroÁrea de conocimientoFecha de creación/publicaciónTitulaciónThis CollectionAuthorsDirectoresTitlesSubjectsFacultad/CentroÁrea de conocimientoFecha de creación/publicaciónTitulación

    My Account

    Login

    Statistics

    View Usage Statistics

    Otros enlaces

    View Item 
    •   BULERIA Home
    • Scientific Production
    • Artículos de revista (pre-print)
    • View Item
    •   BULERIA Home
    • Scientific Production
    • Artículos de revista (pre-print)
    • View Item

    Compartir

    Export

    RISMendeleyRefworksZotero
    • edm
    • marc
    • xoai
    • qdc
    • ore
    • ese
    • dim
    • uketd_dc
    • oai_dc
    • etdms
    • rdf
    • mods
    • mets
    • didl
    • premis

    Citas

    Academic Search
    Título
    Spatial analysis of habitat quality in a fragmented population of little bustard (Tetrax tetrax): Implications for conservation
    Autor
    García Fernández, Javier
    Suárez Seoane, SusanaAutoridad Buleria
    Miguélez Carbajo, David
    Osborne, Patrick E.
    Zumalacárregui Martínez, Carlos
    Facultad/Centro
    Facultad de Ciencias Biologicas y Ambientales
    Área de conocimiento
    Ecologia
    Datos de la obra
    Biological Conservation, 2007, vol. 137, n,1
    Editor
    Elsevier
    Fecha
    2007-06
    Descripción física
    P. 45-56
    Abstract
    Little bustard populations have suffered reduction and isolation as a consequence of landscape transformations resulting from changes in traditional agricultural systems. Consequently, the species survives within reduced and fragmentary habitats, like islands isolated in a modified matrix. In this paper, we analyze the spatial variations in male density and habitat quality in a fragmented population located at the limit of the species’ Iberian range, which is affected by agricultural intensification, using a regional modelling approach. Habitat quality (quantified according to the species perception) and bird density decreased along the intensification gradient. However, in the most intensive agricultural zone, the quality of habitats selected by little bustard males increased, while density decreased, against the expected. In possible explanation, we suggest: (1) density is not necessarily a good indicator of habitat quality, (2) population could be under-saturated in this zone, (3) interannual variations in species distribution, or (4) other relevant variables related to the agricultural intensification process not included in this analysis, such as small-scale disturbances. Analysis of population distribution pattern showed a spatial configuration in which the most densely populated squares were located at the core of the biggest population patches, in contact with mid-density squares, and all surrounded by low-density squares. Fragmentation negatively affected habitat quality and male density. Largest population patches, containing higher density values, were located at the beginning of the intensification gradient. Preservation of little bustard densities is related to an adequate management of the farming system. Habitat fragmentation requires an urgent conservation strategy to prevent local and regional scale habitat deterioration, by reducing patch isolation to maintain genetic diversification and functional connectivity.
    Materia
    Zoología
    Palabras clave
    Population saturation
    Agricultural intensification
    Density
    Idioma
    eng
    Tipo documental
    info:eu-repo/semantics/preprint
    URI
    http://hdl.handle.net/10612/10579
    Collections
    • Artículos de revista (pre-print) [56]
    Show full item record
    Files in this item
    Nombre:
    Spatial analysis of habitat quality 2007.pdf
    Tamaño:
    422.2Kb
    Formato:
    Adobe PDF
    Thumbnail
    FilesOpen