Abstract
Three different systems of designating protected areas in a Mediterranean region in southeastern Spain were studied, referring to their effectiveness and efficiency for protecting both the breeding territories and the suitable habitat of a set of ten raptor species. Taking into consideration the varying degrees of endangerment of these species, a map of multispecies conservation values was also drawn up and superimposed on the three protected-area systems studied. In order to compare the levels of protection afforded by the three systems, we considered two indices that measured their relative effectiveness and efficiency. The effectiveness estimated the proportion of territories or optimal habitat protected by the networks while efficiency implicitly considered the area of each system (percentage of breeding territories or optimal habitat protected per 1% of land protected). Overall, our results showed that the most efficient system was that formed by the set of regional parks and reserves (17 protected breeding territories per 100 km2), although, given its small total area, it was by far the least effective (only protecting the 21% of the breeding territories of all species and 17% of the area of high conservation value). The systems formed by the Special Protection Areas (designated under the EU “Birds Directive”) and by the Special Conservation Areas (designated under the EU “Habitats Directive”) notably increased the percentages of protected territories of all species (61%) and area of high conservation value (57%), but their efficiency was not as high as expected in most cases. The overall level of protection was high for all species except for the Lesser Kestrel (Falco naumanni), an endangered falcon that inhabits pseudo-steppe and traditional agricultural habitats, which are clearly underrepresented in the protected-area network of the study region.
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Acknowledgments
We are most grateful to Iluminada Pagán, Mario León, Pencho Sánchez, Carlos González, Emilio Aledo and other colleagues who provided invaluable information on breeding territories and helped with field censuses. Three anonymous reviewers provided helpful and constructive comments on an earlier version of the manuscript. We are also indebted to Paqui Carreño for her help with GIS analyses.
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Abellán, M.D., Martínez, J.E., Palazón, J.A. et al. Efficiency of a Protected-Area Network in a Mediterranean Region: A Multispecies Assessment with Raptors. Environmental Management 47, 983–991 (2011). https://doi.org/10.1007/s00267-011-9640-5
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DOI: https://doi.org/10.1007/s00267-011-9640-5