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Landscape evaluation in conservation: molecular sampling and habitat modeling for the Iberian lynx.

Néstor Fernández1, Miguel Delibes, Francisco Palomares

  • 1Department of Applied Biology, Doñana Biological Station, Spanish Council for Scientific Research-CSIC, Avda. María Luisa s/n 41013 Seville, Spain. nestor@ebd.csic.es

Ecological Applications : a Publication of the Ecological Society of America
|July 11, 2006
PubMed
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Conservation of the Iberian lynx (Lynx pardinus) relies on understanding its habitat. This study uses molecular analysis and spatial modeling to identify critical habitats for this endangered species, guiding conservation efforts.

Area of Science:

  • Ecology
  • Conservation Biology
  • Genetics

Background:

  • Effective conservation of endangered species necessitates understanding their distribution and habitat needs.
  • Rapidly declining populations of rare vertebrates often lack sufficient ecological data for timely management strategies.

Purpose of the Study:

  • To develop and apply a spatial habitat modeling approach integrating molecular species detection to assess habitat requirements of the critically endangered Iberian lynx (Lynx pardinus).
  • To predict Iberian lynx distribution, potential population size, and identify landscape management priorities for habitat conservation in a poorly known Spanish population.

Main Methods:

  • Formulated habitat selection hypotheses based on known Iberian lynx requirements (space, vegetation, prey).
  • Designed a sampling protocol using fecal surveys and molecular analysis for species identification.

Related Experiment Videos

  • Compared candidate spatial models to select a parsimonious model for habitat assessment and prediction.

    • Main Results:

    • Selected model accurately assessed Iberian lynx habitat requirements at the home range scale with 85% predictive accuracy.
    • Predicted that Iberian lynx prefer landscapes with higher percentages of rocky areas and mature Mediterranean shrubland.
    • Identified only 16% of the studied area as potential habitat, primarily clumped in two connected patches suitable for 28-62 breeding territories.

    Conclusions:

    • The Iberian lynx population in Sierra Morena is critically small, requiring urgent habitat conservation and restoration.
    • Management should focus on preserving mature shrubland, especially in rocky landscapes, and reconciling hunting practices with species preservation.
    • The integrated molecular and spatial modeling approach is applicable to other data-deficient endangered species conservation efforts.