Data Zone
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 |
|---|---|---|---|---|
| Rock Partridge Alectoris graeca | NT | resident (1996) | 25–40 pairs | B2 |
| Yellow-billed Chough Pyrrhocorax graculus | LC | resident (1996) | 100–200 pairs | A3 |
| Wallcreeper Tichodroma muraria | LC | resident (1996) | present | A3 |
| Rufous-tailed Rock-thrush Monticola saxatilis | LC | breeding (1996) | 5–30 pairs | B2 |
| Alpine Accentor Prunella collaris | LC | resident (1996) | 30 pairs | A3 |
| White-winged Snowfinch Montifringilla nivalis | LC | resident (1996) | 20–30 pairs | A3 |
| Citril Finch Carduelis citrinella | LC | breeding (1996) | 40–100 pairs | A3 |
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 | low | very low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | unset | medium | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Human intrusions and disturbance | happening now | some of population/area (10–49%) | no or slight decline (<1% over 3 generations) | low |
| Residential and commercial development | happening now | few individuals/small area (<10%) | no or slight decline (<1% over 3 generations) | low |
| Climate change and severe weather | likely in long term (>4 years) | whole of population/area (>90%) | no or slight decline (<1% over 3 generations) | low |
| Natural system modifications | likely in long term (>4 years) | few individuals/small area (<10%) | no or slight decline (<1% over 3 generations) | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Little/none of area covered (<10%) | No management planning has taken place | Some limited conservation initiatives are in place | very low |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1983 | Berner Hochalpen und Aletsch - Bietschhorn - Gebiet | Landscapes and Natural Monuments of National Importance (V) | 24 |
| 1991 | Flesch | Bundesinventar der Hoch- und Übergangsmoore von nationaler Bedeutung (Ia) | <1 |
| 1991 | Aletschwald | Bundesinventar der Hoch- und Übergangsmoore von nationaler Bedeutung (Ia) | <1 |
| 1992 | Aletschwald | Bundesinventar der eidgenössischen Jagdbanngebiete (IV) | 31 |
| 2001 | Swiss Alps Jungfrau-Aletsch | World Heritage Site (natural or mixed) (UA) | 15 |
| 2001 | Bettmeralp | Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung (IV) | <1 |
| 2001 | Chiebodenstafel | Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung (IV) | <1 |
| 2010 | Hegi | Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV) | <1 |
| 2010 | Wyde | Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV) | <1 |
| 2010 | Schipfe | Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV) | <1 |
| 2010 | Bisterli | Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV) | <1 |
| 2010 | Obers Filet | Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV) | <1 |
| 2010 | Meiggera | Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV) | <1 |
| 2010 | Flesche | Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV) | <1 |
| 2010 | Egga | Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV) | <1 |
| 2010 | Fure | Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV) | <1 |
| 2010 | Obers Nussböüm | Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV) | <1 |
| 2017 | Halte | Federal Inventory of Dry Grasslands and Pastures of National Importance (IV) | <1 |
| 2017 | Martisbergeralp | Federal Inventory of Dry Grasslands and Pastures of National Importance (IV) | <1 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Grassland | 34 | Alpine, subalpine and boreal grassland |
| Rocky areas (eg. inland cliffs, mountain peaks) | 31 | Inland cliffs; Scree & boulders |
| Forest | 28 | Native coniferous woodland; Treeline ecotone |
| Artificial/Terrestrial | 2 | Urban parks and gardens; Other urban and industrial areas |
| Wetlands (inland) | 1 | Rivers and streams; Standing freshwater |
| Land use | % of IBA |
|---|---|
| agriculture | 34 |
| urban/industrial/transport | 2 |
| forestry | - |
| tourism/recreation | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Aletsch region (Switzerland). Downloaded from
https://datazone.birdlife.org/site/factsheet/aletsch-region-iba-switzerland on 23/12/2024.