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The site was identified as important in 2016 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):

Species	Current IUCN Red List Category	Season	Year(s)	Population estimate at site	IBA criteria met
Northern Shoveler Spatula clypeata	LC	non-breeding	2011-2015	689-1,330 individuals	B1i, C3
Eurasian Wigeon Mareca penelope	LC	non-breeding	2011-2015	21,597-31,870 individuals	B1i, C3
Baillon's Crake Zapornia pusilla	LC	breeding	2011-2015	1-2 breeding pairs	C6
Common Little Bittern Ixobrychus minutus	LC	breeding	2011-2015	1-2 breeding pairs	C6
Black-crowned Night-heron Nycticorax nycticorax	LC	breeding	2011-2015	1 breeding pairs	C6
A4iii Species group - waterbirds	n/a	non-breeding	2011-2015	35,558-51,009 individuals	A4iii, C4

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2016).

Pressure (threats to the trigger species and/or their habitats)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Human intrusions and disturbance	recreational activities	likely in long term (beyond 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
Human intrusions and disturbance	work and other activities	likely in short term (within 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
Invasive and other problematic species and genes	invasive non-native/alien species/diseases - unspecified species	likely in short term (within 4 years)	majority/most of area/population (50-90%)	slow but significant deterioration	medium
Invasive and other problematic species and genes	problematic native species/diseases - unspecified species	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Natural system modifications	dams & water management/use - abstraction of surface water (agricultural use)	likely in long term (beyond 4 years)	some of area/population (10-49%)	no or imperceptible deterioration	low
Pollution	excess energy - noise pollution	likely in long term (beyond 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
Residential and commercial development	tourism and recreation areas	likely in long term (beyond 4 years)	majority/most of area/population (50-90%)	very rapid to severe deterioration	high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation	Management planning	Other conservation action	Result
Whole area of site (>90%) covered by appropriate conservation designation	No management plan exists but the management planning process has begun	Some limited conservation initiatives are in place	low

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)
Wijde Blik	Nature Reserve with Management Subsidy	16	protected area contained by site	16
Weerribben	Natuurbeschermingswet	3,329	unknown	0
Tienhovense Plassen	Nature Reserve	203	protected area contained by site	203
Spiegelplas	Nature Reserve	1	protected area contained by site	1
Polder Mijnden	Nature Conservation Law	19	protected area contained by site	62
Oostelijke Vechtplassen	Ramsar Site, Wetland of International Importance	4,500	protected area overlaps with site	0
Oostelijke Vechtplassen	Site of Community Importance (Habitats Directive)	4,401	protected area contained by site	3,270
Oostelijke Vechtplassen	Natuurbeschermingswet	6,475	is identical to site	0
Oostelijke Vechtplassen	Special Protection Area (Birds Directive)	6,475	is identical to site	6,675
Moerasterrein Loosdrecht	Natural Monument	80	protected area contained by site	80
Loosdrechtse Plassen	Nature Reserve	445	protected area contained by site	445
Kortenhoefse Plassen	Nature Reserve	328	protected area contained by site	328
Horstermeerpolder II	Nature Reserve	51	protected area contained by site	51
Horstermeerpolder	Nature Reserve	50	protected area contained by site	50
Het Hol, Kortenhoef	Nature Reserve	176	protected area contained by site	176
Ankeveense Plassen	Nature Reserve	598	protected area contained by site	598

Habitat (IUCN level 1)	Habitat detail	Extent (% of site)
Forest	Alluvial and very wet forest	-
Wetlands (inland)	Standing freshwater, Water fringe vegetation	-
Artificial/Terrestrial	Highly improved re-seeded landscapes	-

For more 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	-

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Oostelijke Vechtplassen. Downloaded from http://datazone.birdlife.org/site/factsheet/oostelijke-vechtplassen-iba-netherlands on 03/10/2023.