Emsaue (Rietberger Emsniederung - Steinhorster Becken)

IBA Criteria

Year of most recent IBA criteria assessment: 2002

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Whooper Swan Cygnus cygnus LC winter 1993 11 individuals C6
Common Crane Grus grus LC passage 1996 250 individuals C6
Black Stork Ciconia nigra LC passage 1993 2 individuals C6
White Stork Ciconia ciconia LC passage 1998 2 individuals C6
Eurasian Bittern Botaurus stellaris LC passage 1996 1-3 individuals C6
Little Egret Egretta garzetta LC passage 1996 1 individuals C6
Ruff Calidris pugnax LC passage 1993 96 individuals C6
Wood Sandpiper Tringa glareola LC passage 1993 33 individuals C6
Black Tern Chlidonias niger LC passage 1998 65 individuals C6
Common Tern Sterna hirundo LC passage 1995 1 individuals C6
Eurasian Eagle-owl Bubo bubo LC non-breeding 1993 1 individuals C6
Osprey Pandion haliaetus LC passage 1993 6 individuals C6
European Honey-buzzard Pernis apivorus LC passage 1993 30 individuals C6
Western Marsh-harrier Circus aeruginosus LC resident 1994 5 breeding pairs C6
Montagu's Harrier Circus pygargus LC passage 1994 1 individuals C6
Red Kite Milvus milvus LC non-breeding 1993 4 individuals C6
Peregrine Falcon Falco peregrinus LC winter 1998 1 individuals C6
Collared Sand Martin Riparia riparia LC breeding 1992 8,548 breeding pairs B2

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
VSG 'Rietberger Emsniederung mit Steinhorster Becken' Special Protection Area (Birds Directive) 928 protected area overlaps with site 866
Stein Naturschutzgebiet 6 protected area overlaps with site 0
Rietberger Emsniederung Nature Reserve 11 protected area contained by site 11
Rietberger Emsniederung Nature Reserve 420 protected area contained by site 420
NSG Steinhorster Becken Naturschutzgebiet 83 protected area contained by site 83
NSG Rietberger Fischteiche Naturschutzgebiet 50 protected area contained by site 51
NSG Rietberger Emsniederung Naturschutzgebiet 15 protected area contained by site 0
NSG Rietberger Emsniederung Naturschutzgebiet 432 protected area contained by site 0
Guetersloh Landscape Protection Area 55,212 protected area overlaps with site 336
Ems, Furlbach Landscape Protection Area 662 protected area overlaps with site 335


IUCN Habitat Habitat detail Extent (% of site)
Forest -
Grassland Humid grasslands -
Wetlands (inland) Standing freshwater, Rivers and streams, Water fringe vegetation -
Artificial/Terrestrial Highly improved re-seeded landscapes, Arable land -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
other -
water management -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Emsaue (Rietberger Emsniederung - Steinhorster Becken). Downloaded from on 09/02/2023.