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, Larus argentatus, Larus argentatus argentatus. 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
BE
CZ
DE estimateExpert
DK completeSurvey
EE estimatePartial
FI estimatePartial
LT estimatePartial
LV estimatePartial
PL absentData
SE 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
BE
CZ
DE estimateExpert
DK completeSurvey
EE estimatePartial
FI completeSurvey
LT estimatePartial
LV completeSurvey
PL absentData
SE 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
BE estimatePartial
CZ completeSurvey
DE
DK
EE
FI
LT
LV
PL completeSurvey
SE
Max
Best value Unit Type est. Change % MS ST period ST direction ST magnitude LT period LT direction LT magnitude Status Distrib. % MS
BE
18000 34000 26000 i estimate knowledge N/A 2007-2018 x N/A 1992-2018 x N/A other Larus argentatus argentatus
CZ
119 2600 N/A i estimate N/A N/A 2008-2019 + N/A | N/A | (13) 1980-2019 + N/A | N/A | (15) # other Larus argentatus argentatus
DE
19500
24000
N/A
p
mean
genuine
#
10.7
2004-2016 - N/A | N/A | (-33) 1985-2016 - N/A | N/A | (-29) # 12653 # 2.6 2004-2016 = -10 | 10 | (0) 1980-2016 = -30 | 40 | (N/A) # 18900 4.1 Larus argentatus argentatus
DK
N/A
N/A
85926
p
estimate
noChange
#
42.1
2010-2017 = 0 | 0 | (0) 1988-2017 + 23.5 | 119.43 | (64.85) # 22100 4.5 1996-2017 + N/A | N/A | (33.13) 1974-2017 + N/A | N/A | (36.41) # N/A N/A Larus argentatus argentatus
EE
10000
15000
N/A
p
estimate
genuine
6.1
2007-2018 - -22 | -16 | (N/A) 1980-2017 - -63 | -62 | (N/A) 28000 5.7 2007-2018 = 10 | 11 | (N/A) 1980-2018 + 45 | 75 | (N/A) 12800 2.8 Larus argentatus argentatus
FI
18386
24393
20384
p
estimate
genuine
10.0
2010-2018 - 4 | 17 | (10) 1980-2018 - 20 | 36 | (29) 189900 38.8 N/A N/A N/A 1980-2010 + 26 | 26 | (N/A) 189800 41.5 Larus argentatus argentatus
LT
0
10
N/A
p
estimate
knowledge
2013-2018 - -100 | -75 | (N/A) 1980-2018 - -100 | -50 | (N/A) 600 0.1 2006-2018 = N/A 1980-2018 = N/A 600 0.1 Larus argentatus argentatus
LV
2500
3000
N/A
p
estimate
method
1.4
2012-2018 + 22.17 | 22.92 | (22.47) 1980-2017 + 375 | 378 | (N/A) 10000 2.0 2000-2017 - N/A | N/A | (-22) 1980-2017 + N/A | N/A | (92) 9900 2.2 Larus argentatus argentatus
PL
N/A
N/A
N/A
N/A
N/A
noChange
N/A
2007-2018 x N/A 1980-2018 x N/A N/A N/A 2007-2018 x N/A 1980-2018 x N/A 19000 25000 22000 i minimum method # N/A 2011-2018 - -48 | -23 | (-36) 1980-2018 x N/A # other N/A N/A Larus argentatus argentatus
SE
44000
79000
61000
p
estimate
genuine
#
29.9
2007-2018 = -16 | 12 | (-3) 1980-2018 - -79 | -73 | (-76) 225700 46.2 2007-2018 = N/A 1980-2018 + 0 | 10 | (5) 225700 49.3 Larus argentatus argentatus
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