Eurostat does not collect or republish data about qualitative aspects of protected areas (i.e. their condition or "conservation status") which may provide a better indication of the state and trends in biodiversity than the size or coverage of protected areas. The European Environment Agency concluded in their report The European environment - state and outlook 2020 that 60 % of species and 77 % of habitats listed in the Habitats Directive showed predominantly unfavourable conservation status.

Source: EUROSTAT

"conservation status" means: (a) in respect of a natural habitat, the sum of the influences acting on a natural habitat and its typical species that may affect its long-term natural distribution, structure and functions as well as the long-term survival of its typical species within, as the case may be, the European territory of the Member States to which the Treaty applies or the territory of a Member State or the natural range of that habitat;

Source: EURO-Lex

conservation status of a species’ means the sum of the influences acting on the species concerned that may affect the long-term distribution and abundance of its populations:
‘conservation status of a habitat’ means the sum of the influences acting on a natural habitat and its typical species that may affect its long-term natural distribution, structure and functions as well as the long-term survival of its typical species;

‘sensitive habitat’ means a habitat whose conservation status, including its extent and the condition (structure and function) of its biotic and abiotic components, is adversely affected by pressures arising from human activities, including fishing activities. Sensitive habitats, in particular, include habitat types listed in Annex I, and habitats of species listed in Annex II to Directive 92/43/EEC, habitats of species listed in Annex I to Directive 2009/147/EC, habitats whose protection is necessary to achieve good environmental status under Directive 2008/56/EC and vulnerable marine ecosystems as defined by point (b) of Article 2 of Council Regulation (EC) No 734/2008 (27);

‘sensitive species’ means a species whose conservation status, including its habitat, distribution, population size or population condition is adversely affected by pressures arising from human activities, including fishing activities. Sensitive species, in particular, include species listed in Annexes II and IV to Directive 92/43/EEC, species covered by Directive 2009/147/EC and species whose protection is necessary to achieve good environmental status under Directive 2008/56/EC;

Source: EURO-Lex

(red list) 1) A publication listing the conservation status of different taxa in a given geographic area (e.g. region, country, world). 2) The series of publications produced by the International Union for the Conservation of Nature and Natural Resources (IUCN). They provide an inventory on the threat to rare plants and animal species. Information includes status, geographical distribution, population size, habitat and breeding rate. The books also contain the conservation measures, if any, that have been taken to protect the species. There are five categories of rarity status: endangered species; vulnerable organisms, which are those unlikely to adapt to major environmental effects; rare organisms, which are those at risk because there are few of them in the world, such as plants which only grow on mountain peaks or on islands; out of danger species, which were formerly in the above categories, but have had the threat removed because of conservation actions; and indeterminate species, which are the plants and animals probably at risk, although not enough is known about them to assess their status.

Source: EEA Glossary