Current view: Data table and detailed info
Year of most recent IBA criteria assessment: 2016
Populations of IBA trigger species
Species |
Current IUCN Red List Category |
Season |
Year(s) of estimate |
Population at site |
IBA criteria triggered |
Tundra Swan Cygnus columbianus |
LC |
non-breeding |
2011-2015 |
624-1,507 individuals |
B1i, C2, C6 |
Barnacle Goose Branta leucopsis |
LC |
non-breeding |
2011-2015 |
13,624-23,215 individuals |
A4i, B1i, C2 |
Greater White-fronted Goose Anser albifrons |
LC |
non-breeding |
2011-2015 |
31,500-38,446 individuals |
B1i, C3 |
Smew Mergellus albellus |
LC |
non-breeding |
2011-2015 |
446-763 individuals |
B1i, C2, C6 |
Tufted Duck Aythya fuligula |
LC |
non-breeding |
2011-2015 |
12,324-18,218 individuals |
B1i, C3 |
Gadwall Mareca strepera |
LC |
non-breeding |
2011-2015 |
15,655 individuals |
B1i, C3 |
Eurasian Wigeon Mareca penelope |
LC |
non-breeding |
2011-2015 |
26,045-45,519 individuals |
B1i, C3 |
Common Teal Anas crecca |
LC |
non-breeding |
2011-2015 |
7,928-12,054 individuals |
B1i, C3 |
Common Coot Fulica atra |
LC |
winter |
2011-2015 |
11,167-14,709 individuals |
B2 |
Black-crowned Night-heron Nycticorax nycticorax |
LC |
breeding |
2011-2015 |
1 breeding pairs |
C6 |
Great White Egret Ardea alba |
LC |
non-breeding |
2011-2015 |
453-961 individuals |
C6 |
Pied Avocet Recurvirostra avosetta |
LC |
breeding |
2011-2015 |
192-408 breeding pairs |
C6 |
Black-tailed Godwit Limosa limosa |
NT |
non-breeding |
2011-2015 |
2,517-4,196 individuals |
B1i, C3 |
Black-headed Gull Larus ridibundus |
LC |
non-breeding |
2011-2015 |
81,530 individuals |
A4i, B1i, C3 |
Osprey Pandion haliaetus |
LC |
non-breeding |
2011-2015 |
9-13 individuals |
C6 |
White-tailed Sea-eagle Haliaeetus albicilla |
LC |
breeding |
2011-2015 |
1-2 breeding pairs |
C6 |
White-tailed Sea-eagle Haliaeetus albicilla |
LC |
non-breeding |
2011-2015 |
4-6 individuals |
C6 |
Common Kingfisher Alcedo atthis |
LC |
breeding |
2011-2015 |
22-33 breeding pairs |
B2, C6 |
Peregrine Falcon Falco peregrinus |
LC |
breeding |
2011-2015 |
3-4 breeding pairs |
C6 |
Sedge Warbler Acrocephalus schoenobaenus |
LC |
breeding |
2011-2015 |
1,024-1,313 breeding pairs |
B3 |
Savi's Warbler Locustella luscinioides |
LC |
breeding |
2011-2015 |
57 breeding pairs |
B3 |
Bluethroat Luscinia svecica |
LC |
breeding |
2011-2015 |
995-1,165 breeding pairs |
C6 |
A4iii Species group - waterbirds |
n/a |
non-breeding |
2011-2015 |
113,256-225,739 individuals |
A4iii, C4 |
Note: The current IUCN Red List category may differ from the category that was valid at the time of IBA criteria assessment.
For more information about the IBA criteria, please click here
IBA conservation status - summary |
Year of assessment (most recent) |
Threat (pressure) |
Condition (state) |
Action (response) |
2018 |
low |
not assessed |
medium |
Was the whole site assessed? |
no |
Condition (state) assessed by |
unset |
Accuracy of information |
medium |
|
For more information about IBA conservation status, please click
here
Protected area (PA) |
PA designation |
PA area (ha) |
Relationship of PA with IBA |
Overlap of PA with IBA (ha) |
Sliedrechtse Biesbosch |
Nature Reserve |
797 |
protected area contained by site |
797 |
Hollands Diep
|
Ramsar Site, Wetland of International Importance |
4,050 |
protected area is adjacent to site |
0 |
Dordtse Biesbosch |
Nature Reserve |
806 |
protected area contained by site |
806 |
De Biesbosch
|
National Park |
7,100 |
protected area contained by site |
7,100 |
De Biesbosch
|
Nationaal Park |
8,980 |
protected area overlaps with site |
0 |
Brabantse Biesbosch
|
Nature Conservation Law |
1,500 |
protected area contained by site |
2,691 |
Biesbosch
|
Ramsar Site, Wetland of International Importance |
1,700 |
protected area overlaps with site |
1,700 |
Biesbosch
|
Natuurbeschermingswet |
9,640 |
is identical to site |
0 |
Biesbosch
|
Special Protection Area (Birds Directive) |
9,478 |
is identical to site |
8,522 |
Biesbosch
|
Site of Community Importance (Habitats Directive) |
9,640 |
is identical to site |
9,050 |
IUCN Habitat |
Habitat detail |
Extent (% of site) |
Forest |
Alluvial and very wet forest |
- |
Wetlands (inland) |
Standing freshwater, Rivers and streams, Water fringe vegetation |
- |
Artificial/Terrestrial |
Highly improved re-seeded landscapes |
- |
For further information about the IUCN habitat classification, please click
here.
Land-use |
Extent (% of site) |
agriculture |
- |
fisheries/aquaculture |
- |
water management |
- |
hunting |
- |
nature conservation and research |
- |
tourism/recreation |
- |
urban/industrial/transport |
- |
water management |
- |
other |
- |
For further information about the land-use classification, please click
here.
Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Biesbosch. Downloaded from
http://datazone.birdlife.org/site/factsheet/1229 on 08/06/2023.