Article 12 web tool

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Population status and trends at the EU and Member State levels

The Article 12 web tool provides an access to EU assessments and Member States’ data compiled as part of the Habitats Directive - Article 12 reporting process. The EU assessments have been carried out in EU 27 for the period 2008-2012 and in EU28 for the period 2013-2018.

Choose period, species and if relevant sub-specific unit.

Once a selection has been made the breeding distribution of the species can be visualized in a map.

The ‘Data sheet info’ includes notes for each assessment per species.

The ‘Audit trail’ includes the methods used for the EU assessment and justifications for decisions made by the assessors.

Legend
+
Increasing
=
Stable
x
Unknown
-
Decreasing
F
Fluctuating
u
Uncertain

Codes ‘PT’, ‘ES ‘correspond to Portugal mainland (excluding Azores-PTAC and Madeira-PTMA) and Spain mainland (excluding Canary Islands-ESIC) respectively.
Similarly ‘UK’ stands for the United Kingdom of Great Britain and Northern Ireland (excluding Gibraltar-GIB).
The data from delayed delivery by Romania were not used for the EU population status assessment.

Current selection: 2013-2018, Chlidonias leucopterus. Show all
Data from Member States reports
MS Breeding population Breeding distribution Winter population Breeding area from
gridded maps (km2)
Ssp. / subsp. unit
Population size Population trend Distribution size Distribution trend Population size Population trend
Min
Mouse-over texts for entries below show "Method used" reported for population size as a whole:
estimatePartial - based mainly on extrapolation from limited amount of data
estimateExpert - based mainly on expert opinion, with very limited data
absentData - insufficient or no data available
completeSurvey - complete survey or statistically robust estimate
Country Method used
BG completeSurvey
DE completeSurvey
EE estimateExpert
HU completeSurvey
IT estimateExpert
LT estimatePartial
LV estimateExpert
PL estimateExpert
RO estimateExpert
SK estimatePartial
Max
Best value Unit Type est. Change % MS ST period ST direction ST magnitude LT period LT direction LT magnitude
Mouse-over texts for entries below show "Method used" reported for distribution surface area (in km²):
estimatePartial - based mainly on extrapolation from limited amount of data
estimateExpert - based mainly on expert opinion, with very limited data
absentData - insufficient or no data available
completeSurvey - complete survey or statistically robust estimate
Country Method used
BG estimatePartial
DE estimateExpert
EE estimatePartial
HU completeSurvey
IT estimatePartial
LT estimatePartial
LV completeSurvey
PL absentData
RO estimateExpert
SK estimatePartial
Area
% MS ST period ST direction ST magnitude LT period LT direction LT magnitude Min
Mouse-over texts below show "Method used" reported for population size value(s):
estimatePartial - based mainly on extrapolation from limited amount of data
estimateExpert - based mainly on expert opinion, with very limited data
absentData - insufficient or no data available
completeSurvey - complete survey or statistically robust estimate
Country Method used
BG
DE
EE
HU
IT
LT
LV
PL
RO
SK
Max
Best value Unit Type est. Change % MS ST period ST direction ST magnitude LT period LT direction LT magnitude Status Distrib. % MS
BG
0
47
N/A
p
estimate
genuine
0.7
2000-2018 F N/A 1980-2018 x N/A 495 7.6 2000-2018 x N/A 1980-2018 x N/A 800 11.6
DE
0
36
N/A
p
estimate
genuine
0.6
2004-2016 x N/A 1980-2016 x N/A 300 4.6 2004-2016 - -100 | -31 | (N/A) 1980-2016 + 41 | 180 | (N/A) 300 4.3
EE
0
5
N/A
p
estimate
knowledge
2006-2017 F N/A 1980-2017 x N/A 1300 20.0 2007-2018 + 78 | 800 | (N/A) 1980-2018 + 96 | 1200 | (N/A) 1300 18.8
HU
0
124
N/A
p
estimate
knowledge
2.0
2007-2018 F N/A 1980-2018 F N/A 700 10.8 2007-2018 F N/A 1980-2018 F N/A 800 11.6
IT
4
4
N/A
p
estimate
noChange
0.1
2007-2018 x N/A 1993-2018 + 100 | 300 | (N/A) 500 7.7 2007-2018 + 400 | 400 | (N/A) 1993-2018 + N/A | N/A | (300) 500 7.2
LT
80
150
N/A
p
estimate
knowledge
3.6
2013-2018 F N/A 1980-2018 + 160 | 300 | (N/A) 1400 21.6 2006-2018 F N/A 1980-2018 + 30 | 40 | (N/A) 1400 20.3
LV
120
350
N/A
p
estimate
genuine
7.4
2012-2018 + 19.98 | 43.72 | (29.61) 1991-2017 + 251 | 426 | (N/A) 1100 16.9 2000-2017 + N/A | N/A | (57) 1980-2017 + N/A | N/A | (175) 1100 15.9
PL
300
5000
N/A
p
estimate
genuine
83.9
2007-2018 F N/A 1980-2018 + 275 | 315 | (N/A) # N/A N/A 2007-2018 x N/A 1980-2018 x N/A N/A N/A
RO
0
100
N/A
p
estimate
knowledge
1.6
2007-2018 F -100 | 10000 | (N/A) 1980-2018 F -100 | 10000 | (N/A) 700 10.8 2007-2018 F N/A 1980-2018 F N/A 700 10.1
SK
0
0
N/A
p
estimate
genuine
#
2007-2018 F N/A 1980-2018 F N/A 0.00000 # 2007-2018 F N/A 1980-2018 F N/A N/A N/A
EU population status assessments
Breeding population Breeding distribution Winter population EU population
status
Contribution
to Target 1
Season Previous status Ssp. / subsp. unit
Population size (min) Population size (max) Unit Short-term trend Long-term trend Area Short-term trend Long-term trend Population size (min) Population size (max) Unit Short-term trend Long-term trend Breeding Wintering
EU28 600 6100 p F + 5700 NE NE Secure A B Secure Chlidonias leucopterus