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Abstract:Protected areas' overall goal is to achieve the long-term conservation of natural and associated cultural goods and services. However, effective long-term conservation of natural and associated cultural resources cannot always be guaranteed by a protection regime or even by effective management, as it is usually assumed. The ultimate goal of assessing protected areas is therefore concerned less with management effectiveness than with their overall long-term effectiveness. This paper describes the methodology underpinning the System for the Integrated Assessment of Protected Areas (SIAPA). The aim of SIAPA is to make the concept of 'effectiveness' operational when applied to protected areas. It is an innovative, horizontal site-level assessment system for evaluating integrally and comparably the effectiveness of terrestrial protected areas, as the assessment is based on the same parameters. Indicators are the basic assessment units. They were weighted by an expert panel and integrated into six categories (indexes) defining the effectiveness of protected areas: state of conservation, planning, management, social and economic context, social perception and valuation, and threats to conservation. These indexes were subsequently integrated into a single super-index: an effectiveness index for the protected area. Two alternative models of the SIAPA were developed: the complete model, containing 43 indicators, in order to maximize the amount of information on each protected area; and the simplified model, containing 28 indicators, in order to maximize the cost-effectiveness of the assessment.

Land use-land cover (LULC) changes towards artificial covers are one of the main global threats to biodiversity conservation. In this comprehensive study, we tested a number of methodological and research hypotheses, and a new covariate control technique in order to address common protected area (PA) assessment issues and accurately assess whether different PA networks have had an effect at preventing development of artificial LULCs in Spain, a highly biodiverse country that has experienced massive socioeconomic transformations in the past two decades. We used digital census data for four PA networks designated between 1990 and 2000: Nature Reserves (NRs), Nature Parks (NPs), Sites of Community Importance (SCIs) and Special Protection Areas (SPAs). We analysed the effect of explanatory variables on the ecological effectiveness of protected polygons (PPs): Legislation stringency, cummulative legal designations, management, size, age and bio-physical characteristics. A multiple Before-After-Control-Impact (BACI) semi-experimental research design was used whereby artificial land cover increase (ALCI) and proportional artificial land cover increase (PALCI) results were compared inside and outside PAs, using 1km and 5km buffer areas surrounding PAs as controls. LULC data were retrieved from Corine Land Cover (CLC) 1990 and 2006 data. Results from three spatial-statistical models using progressively restrictive criteria to select control areas increasingly more accurate and similar to the assessed PPs were compared. PAs were a generally effective territorial policy to prevent land development in Spain. NRs were the most effective PA category, with no new artificial covers in the assessed period, although exact causality could not be attributed due to overlaps. SPAs were the least effective category, with worse ALCI data than their control areas. Legal protection was effective against land development, which was influenced by most biophysical variables. However, cumulative legal designations and PA management did not seem to influence land development. The spatial-statistical technique used to make cases and control environmentally similar did not produce consistent outcomes and should be refined.

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SUMMARYProtected areas are regarded as the main strategy to halt biodiversity loss; however, protected area effectiveness evaluations remain scarce and mostly rely on limited scientific evidence. Protected area managers from two case studies in the Mediterranean basin biodiversity hotspot (networks of Spanish terrestrial protected areas and individual Mediterranean marine protected areas) were surveyed to assess the use of two protected area evaluation systems: the ‘System for the Integrated Assessment of Protected Areas’ (SIAPA) and the ‘System for Quick Evaluation of Management in Mediterranean MPAs’ using the ‘Knowledge Systems for Sustainable Development’ framework. A second survey in Spain ascertained the degree of implementation of protected area evaluation systems and the institutional interest in implementing such systems. The main weaknesses attributable to the systems presented were limited salience (for the SIAPA) and legitimacy in terms of costs (for the System for Quick Evaluation of Management in Mediterranean MPAs). However, the main reasons for the limited uptake of the evaluation systems presented were not attributable to the systems themselves, but to management or institutional limitations: the lack of basic data for and weak institutional interest in evaluation in Spain, and the scarce resources available for evaluation in the case of some Mediterranean marine protected areas.

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