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The site was identified as internationally important for bird conservation in 2000 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Bluethroat Luscinia svecica	LC	breeding (1995)	65–80 pairs	C6

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Langdonken	Nature Reserve (-)	1
-	Demerbroeken	Nature Reserve (-)	1
1985	Vallei van de Zwarte Beek	Erkend natuurreservaat (IV)	1
1988	De Demervallei	Special Protection Area (Birds Directive) (IV)	92
1988	Langdonken	Erkend natuurreservaat (IV)	2
1990	openbaar bos Vlaams-Brabant	Openbaar bos (VI)	2
1990	openbaar bos Limburg	Openbaar bos (VI)	2
1991	Demerbroeken	Erkend natuurreservaat (IV)	4
1996	Schulensbroek	Erkend natuurreservaat (IV)	4
2000	Molenheide	Erkend natuurreservaat (IV)	<1
2002	Demervallei	Site of Community Importance (Habitats Directive) (IV)	27
2002	Bovenloop van de Grote Nete met Zammelsbroek; Langdonken en Goor.	Site of Community Importance (Habitats Directive) (IV)	6
2004	Demerbroeken	Vlaams natuurreservaat (IV)	1

Habitat	% of IBA	Habitat detail
Artificial/Terrestrial	60	Arable land; Perennial crops, orchards and groves; Forestry plantations; Urban parks and gardens
Wetlands (inland)	20	Standing freshwater; Water fringe vegetation
Grassland	15	Humid grasslands
Forest	10	Broadleaved deciduous woodland; Alluvial and very wet forest

Land use	% of IBA
agriculture	40
forestry	30
nature conservation and research	20
urban/industrial/transport	10
tourism/recreation	5

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Demervallei (Belgium). Downloaded from https://datazone.birdlife.org/site/factsheet/demervallei-iba-belgium on 23/12/2024.