Informe El medio ambiente en Europa: Estado y perspectivas 2020

PART 2
FIGURE 3.5 Common birds population index, 1990-2016
Common birds population index
Population index (1990 = 100)
120
Common forest birds in Europe
Population index (1990 = 100)
120
100
100
80
80
60
60
40
40
20
0
1990 1995 2000 2005 2010 2015
All common birds in Europe (168 species)
Common forest birds in Europe (34 species)
20
0
1990 1995 2000 2005 2010 2015
Unsmoothed trend
Confidence limits
Common farmland birds in Europe (39 species)
All common birds in Europe
Population index (1990 = 100)
120
Common farmland birds in Europe
Population index (1990 = 100)
120
100
100
80
80
60
60
40
40
20
20
0
1990 1995 2000 2005 2010 2015
Unsmoothed trend
Confidence limits
0
1990 1995 2000 2005 2010 2015
Unsmoothed trend Confidence limits
Note:
Sources:
The shaded areas represent the confidence limits. Geographical coverage: EU-28 Member States (except Croatia and Malta)
and Norway and Switzerland.
EEA (2019a), European Bird Census Council, Royal Society for the Protection of Birds, BirdLife International and Czech Society
for Ornithology.
84 SOER 2020/Biodiversity and nature