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close| Location | Austria, Vorarlberg |
| Central coordinates | 9o 40.00' East 47o 26.00' North |
| IBA criteria | C6 |
| Area | 3,652 ha |
| Altitude | 397 - 402m |
| Year of IBA assessment | 2009 |
Ornithological information An important site for species breeding in wet meadows, and passage and wintering waterbirds.
Site description This site encompasses the mouth of the Rhine as it flows into Lake Constance, together with an area of wet grassland, the Lauteracher Ried. Many parts of this grassland have been drained and are now intensively managed. There are some reedbeds (Phragmites) along the lakeside. Some intensively managed riverine forest remains. The largest part of the site consists of a large, shallow-water bay.
Populations of IBA trigger species
| Species | Season | Period | Population estimate | Quality of estimate | IBA Criteria | IUCN Category |
|---|---|---|---|---|---|---|
| Little Bittern Ixobrychus minutus | breeding | 1995-2005 | 4-11 breeding pairs | good | C6 | Least Concern |
| Black Kite Milvus migrans | breeding | 2005 | 8 breeding pairs | good | C6 | Least Concern |
| Mediterranean Gull Larus melanocephalus | breeding | 1997-2005 | 1-8 breeding pairs | good | C6 | Least Concern |
| Common Tern Sterna hirundo | breeding | 2000-2005 | 228-310 breeding pairs | good | C6 | Least Concern |
Protected areas
| Protected area | Designation | Area (ha) | Relationship with IBA | Overlap with IBA (ha) | |
|---|---|---|---|---|---|
| GLT Lauteracher Ried | Birds Directive | 840 | protected area contained by site | 580 |
|
| NSG Rheindelta | Birds Directive | 2,000 | protected area contained by site | 2,040 |
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| Rheindelta | Nature Reserve | 2,037 | protected area contained by site | 1,972 |
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| Rheindelta | Nature Reserve | 1,972 | unknown | 1,960 | |
| Rheindelta Bodensee | Wetlands of International Importance (Ramsar) | 1,970 | protected area contained by site | 1,960 |
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Habitats
| IUCN habitat | Habitat detail | Extent (% of site) |
|---|---|---|
| Forest | Alluvial and very wet forest | 5% |
| Grassland | Humid grasslands; Mesophile grasslands | 30% |
| Wetlands (inland) | Standing freshwater; Water fringe vegetation | 60% |
| Artificial landscapes (terrestrial) | Arable land; Forestry plantations | 5% |
Land use
| Land-use | Extent (% of site) |
|---|---|
| agriculture | 35% |
| forestry | 5% |
| fisheries/aquaculture | 60% |
Management considerations Drainage schemes and subsequent agricultural intensification, as well as the high level of human disturbance, are the main threats to the IBA.
Protection status National Partial International High1,972 ha of IBA covered by Nature Reserve (Rheindelta 1,972 ha), 1,960 ha of IBA covered by Ramsar Site (Rheindelta Bodensee, 1,960 ha). 580 ha of IBA covered by Special Protection Area (Lauteracher Ried, 580 ha). 2,040 ha of IBA covered by Special Protection Area (Rheindelta, 2,040 ha).
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Delta of the Rhine. Downloaded from http://www.birdlife.org on 23/05/2013
To provide new information to update this factsheet or to correct any errors, please email BirdLife
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