The site was identified as internationally important for bird conservation in 2009 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 |
---|---|---|---|---|
Black Stork Ciconia nigra | LC | non-breeding (1993–2009) | 4–16 birds | C6 |
Boreal Owl Aegolius funereus | LC | breeding (1995–1998) | 1–2 pairs | C6 |
Hen Harrier Circus cyaneus | LC | winter (1990–2005) | 5–10 birds | C6 |
Red Kite Milvus milvus | LC | breeding (1997–2009) | 3–5 pairs | C6 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2009) is shown below.
IBA conservation assessment | |||
---|---|---|---|
Year of assessment | State | Pressure | Response |
2009 | very poor | high | low |
Whole site assessed? | State assessed by | Accuracy of information | |
yes | population | good |
State (condition of the trigger species' populations) | |||||
---|---|---|---|---|---|
Species | Actual vs Reference (units) | % remaining | Result | ||
Common Quail Coturnix coturnix | 7 / 7 (males) | 100 | good | ||
Black Stork Ciconia nigra | 16 / 16 (birds) | 100 | good | ||
Circus cyaneus | 6 / 6 (birds) | 100 | good | ||
Red Kite Milvus milvus | 4 / 3 (pairs) | 100 | good | ||
Whinchat Saxicola rubetra | 2 / 20 (-) | 10 | very poor | ||
Meadow Pipit Anthus pratensis | 2 / 19 (-) | 11 | very poor | ||
Motacilla flava | 2 / 15 (-) | 14 | very poor |
Pressure (threats to the trigger species and/or their habitats) | ||||
---|---|---|---|---|
Threat | Timing | Scope | Severity | Result |
Agricultural expansion and intensification | happening now | most of population/area (50–90%) | slow decline (1–10% over 3 generations) | high |
Natural system modifications | happening now | few individuals/small area (<10%) | rapid decline (>30% over 3 generations) | low |
Response (conservation actions taken for the trigger species and/or their habitats) | |||
---|---|---|---|
Designation | Planning | Action | Result |
Whole area (>90%) covered by appropriate conservation designation | No management planning has taken place | Some limited conservation initiatives are in place | low |
Year | Protected Area | Designation (management category) | % coverage of IBA |
---|---|---|---|
1965 | Parc naturel de l'Our / Naturpark Our | Parc Naturel (II) | 98 |
1981 | Hachiville-Kouprich Wetland | Humid Zone (-) | <1 |
1981 | Hachiville-Kouprich | Humid Zone Buffer Zone (-) | 1 |
1981 | Hachiville-Am Dall | Humid Zone (-) | 6 |
1988 | Wincrange - Ramescher | Protected Area (-) | 21 |
1989 | Troine-Hannerhaassel | Humid Zone (-) | 2 |
1993 | Ramescher (Wincrange) | Zones protégées d'intérêt national - Réserve naturelle (Ib) | 2 |
2002 | Vallée de la Tretterbaach et affluents de la frontière à Asselborn | Zones protégées d'intérêt communautaire - Zones Oiseaux ZPS (IV) | 93 |
2004 | Vallée de la Tretterbaach | Zones protégées d'intérêt communautaire - Zones Habitats ZSC (IV) | 13 |
2004 | Hoffelt - Kaleburn | Zones protégées d'intérêt communautaire - Zones Habitats ZSC (IV) | 3 |
2004 | Troine/Hoffelt - Sporbaach | Zones protégées d'intérêt communautaire - Zones Habitats ZSC (IV) | 2 |
2017 | Sporbaach | Protected Area (Ib) | 3 |
2017 | Kaleburn | Protected Area (Ib) | 3 |
Habitat | % of IBA | Habitat detail |
---|---|---|
Grassland | 64 | Humid grasslands; Mesophile grasslands |
Artificial/Terrestrial | 26 | Arable land; Forestry plantations; Other urban and industrial areas; Ruderal land |
Forest | 7 | Alluvial and very wet forest; Broadleaved deciduous woodland; Mixed woodland |
Shrubland | 2 | Heathland; Scrub |
Wetlands (inland) | 1 | Rivers and streams; Standing freshwater |
Land use | % of IBA |
---|---|
rangeland/pastureland | 64 |
agriculture | 18 |
forestry | 14 |
hunting | major (>10) |
tourism/recreation | minor (<10) |
nature conservation and research | minor (<10) |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Valley of the Trëtterbaach (Luxembourg). Downloaded from
https://datazone.birdlife.org/site/factsheet/valley-of-the-trëtterbaach-iba-luxembourg on 25/12/2024.