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The priority value of scrubland habitats for carnivore conservation in Mediterranean ecosystems

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Abstract

Carnivores are umbrella species with a key role in ecosystems. In the Mediterranean, they face with several conservation problems, mainly habitat loss or transformation. In this region, scrubland habitats are considered of minor conservation relevance as compared to mature forest formations. Conservation of scrublands in Mediterranean ecosystems is also difficult because to control fires, they are removed over large areas. For carnivores, scrublands may be essential to guarantee shelter and food. Here, we analyzed the importance of scrublands and other habitat variables in determining the richness of medium-sized carnivores in a typical Mediterranean area of central Spain (Monfragüe Natural Park). The Park was divided into plots of 2 × 2 km (n = 30). In each plot, a 2 km-length survey route was walked searching for carnivore scats. We recorded the number of species of carnivores and we related this value to several habitat variables. Habitat variables were summarized by means of Principal Component Analysis (PCA). Habitat models were developed by, using multiple regression models, including PCA factors and the habitat type as predictors. The only variable included in the final model was the first PCA factor. Carnivore richness was positively associated with large tree, shrub, and rock cover areas, which is the typical habitat structure of scrublands. This habitat offers the best available area for shelter and may be considered as a key element for carnivore conservation in the Mediterranean region. To reconciliate carnivore conservation and forestry management, we proposed small-scale clearances as a management alternative to typical large scrubland removals.

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Acknowledgements

We thank Paloma García and Álvaro Casanova for their assistance during our field work. The director of Monfragüe Natural Park kindly gave us permission to conduct our surveys within this protected natural reserve. Forestry agents and Luisa Castilla helped us with our field surveys.

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Authors and Affiliations

  1. Departamento de Ciencias de la Naturaleza y Física Aplicada, Universidad Rey Juan Carlos, C/Tulipán s/n, E-29833, Móstoles, Madrid, Spain

    Julián G. Mangas, Jorge Lozano, Sara Cabezas-Díaz & Emilio Virgós

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  1. Julián G. Mangas
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  2. Jorge Lozano
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  3. Sara Cabezas-Díaz
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  4. Emilio Virgós
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Correspondence to Emilio Virgós.

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Mangas, J.G., Lozano, J., Cabezas-Díaz, S. et al. The priority value of scrubland habitats for carnivore conservation in Mediterranean ecosystems. Biodivers Conserv 17, 43–51 (2008). https://doi.org/10.1007/s10531-007-9229-8

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