Data Zone
The site was identified as important 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 List1 | Season | Year(s) | Size | IBA criteria |
|---|---|---|---|---|---|
| Common Pochard Aythya ferina | VU | winter | 1998 | 6,000-9,900 individuals | B1i |
| Tufted Duck Aythya fuligula | LC | winter | 1998 | 7,000-9,700 individuals | B1i |
| Gadwall Mareca strepera | LC | winter | 1998 | 1,700-3,100 individuals | A4i, B1i |
| A4iii Species group - waterbirds | n/a | winter | 1998 | min 20,000 individuals | A4iii |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2000) may differ.
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2000. The most recent assessment (2011) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2011 | not assessed | medium | low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | unset | medium | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Human intrusions and disturbance | likely in long term (beyond 4 years) | whole area/population (>90%) | slow but significant deterioration | medium |
| Biological resource use | happening now | some of area/population (10-49%) | no or imperceptible deterioration | low |
| Invasive and other problematic species and genes | happening now | whole area/population (>90%) | no or imperceptible deterioration | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected areas | Management plan | Other action | Result |
| Whole area of site (>90%) covered by appropriate conservation designation | No management planning has taken place | Very little or no conservation action taking place | low |
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| 1983 | Untersee-Hochrhein | Landscapes and Natural Monuments of National Importance | 97 |
| 1991 | Ermatinger Becken (TG) | Bundesinventar der Wasser- und Zugvogelreservate von internationaler und nationaler Bedeutung | 93 |
| 1996 | Espen Riet/Ermatinger Riet | Bundesinventar der Flachmoore von nationaler Bedeutung | 11 |
| 1996 | Espen Riet bei Ziegelhof | Bundesinventar der Flachmoore von nationaler Bedeutung | 1 |
| 2007 | Espen Riet | Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung | 20 |
| 2007 | Seerhein Chuehorn-Paradies | Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung | 3 |
| Habitat1 | Habitat detail | % of IBA |
|---|---|---|
| Wetlands (inland) | Standing freshwater, Water fringe vegetation | 51 |
| Grassland | Humid grasslands, Mesophile grasslands | 23 |
| Rocky areas (eg. inland cliffs, mountain peaks) | Scree & boulders | 11 |
| Artificial/Terrestrial | Other urban and industrial areas, Urban parks and gardens | 10 |
| Forest | Alluvial and very wet forest, Broadleaved deciduous woodland | 2 |
| Land use | % of IBA |
|---|---|
| agriculture | 24 |
| urban/industrial/transport | 10 |
| fisheries/aquaculture | - |
| hunting | - |
| tourism/recreation | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Constance: Bay of Ermatingen (Switzerland). Downloaded from
https://datazone.birdlife.org/site/factsheet/lake-constance:-bay-of-ermatingen-iba-switzerland on 22/11/2024.