More than a quarter (27%) of European mammals are declining in population. A further 32% are stable, and only 8% are increasing. A number of these increases are due to successful species-based conservation action. Because trend information is not available for 33% of species, however, the percentage of species in decline may actually be considerably higher.

Overall, considering both terrestrial and marine species at the European regional level, 15.2% of species are threatened. A further 9.1 % considered Near Threatened, and 1.3% are already regionally or globally Extinct.