|Location||Denmark, Sønderjyllands Amtskommune|
|Central coordinates||9o 27.00' East 54o 57.00' North|
|Altitude||30 - 50m|
|Year of IBA assessment||2000|
Ornithological information Several species listed on Annex I of the EC Birds Directive, including Botaurus stellaris, Circus aeruginosus, Haliaeetus albicilla, Bubo bubo and Lanius collurio, have been recorded breeding at the site but no recent data are available.
Site description A large lake surrounded by meadows, heathland, bog and forest. Percentage cover of habitat and land-use types are poorly known.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|White-tailed Eagle Haliaeetus albicilla||resident||1996||1 breeding pairs||good||C6||Least Concern|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Hostrup Sø, Assenholm Mose og Felsted Vestermark - DK009X058||Birds Directive||1,322||protected area overlaps with site||1,262|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Wetlands (inland)||Standing freshwater||30%|
|Artificial landscapes (terrestrial)||Arable land; Forestry plantations||30%|
|Land-use||Extent (% of site)|
Management considerations Formerly Hostrup lake was an important botanical locality but nutrient pollution and the abandonment of grazing have resulted in the loss of several rare species.
Protection status National None International High1,330 ha of IBA covered by Special Protection Area (Hostrup Sø, 1,330 ha).
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Hostrup Sø, Assenholm Mose and Felsted Vestermark. Downloaded from http://www.birdlife.org on 19/06/2013
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