The designation of protected areas is a cornerstone for the conservation of biodiversity worldwide, from genes to species, habitats and ecosystems. In June 2006, the Executive Secretary of the Convention on Biological Diversity (CBD) re-affirmed the role of protected areas as cornerstones of biodiversity conservation, but also highlighted that many are "beset with managerial and financial difficulties that impede their effective management". At the European level, there has been an increase in the total area of nationally-designated protected areas over time, indicating a positive commitment by European countries to biodiversity conservation. The total area of nationally designated sites in 39 European countries was around 100 million hectares in 2008. There has also been an increase in the total area of Natura 2000 sites over the past two years with 52 million hectares designated as Special Protected Areas and 65 million as Sites of Community Importance. At least 45 % of SCIs surface is also covered by one national designation. The level of sufficiency in designating Natura 2000 sites for the Habitats Directive is high for most EU-27 countries (21 countries have sufficiency above 80%) and the new Member States are doing well. In addition to quantitative signals it is important to also keep in mind the crucial need to have a qualitative view on the efficiency of the network of designated areas. Marine areas are not yet represented as Natura 2000 sites as the phase of proposals is still going on. There are increasing pressures on biodiversity outside of protected areas, and an assessment of the effectiveness of designated sites in protecting and conserving biodiversity is needed in a broader scale and with the climate change perspective. Assessments of conservation status of species and habitats of Community interest are available and will help to get this qualitative view.
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