Data Zone
The site was identified as internationally important for bird conservation in 2010 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 |
|---|---|---|---|---|
| Corncrake Crex crex | LC | breeding (1999) | 540–700 males | C1, C6 |
| Spotted Crake Porzana porzana | LC | breeding (1996–1999) | 50 males | C6 |
| White Stork Ciconia ciconia | LC | breeding (1996–1999) | 240–260 pairs | C6 |
| Little Tern Sternula albifrons | LC | breeding (1999) | 62–70 pairs | C6 |
| Black Tern Chlidonias niger | LC | breeding (1998–1999) | 360–380 pairs | C2, C6 |
| Western Marsh-harrier Circus aeruginosus | LC | breeding (1996–1999) | 71–85 pairs | C6 |
| Montagu's Harrier Circus pygargus | LC | breeding (1999) | 23–30 pairs | C6 |
| Common Kingfisher Alcedo atthis | LC | breeding (1999) | 82 pairs | C6 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2010. The most recent assessment (2009) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2009 | not assessed | very high | 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 |
| Invasive and other problematic species and genes | happening now | whole of population/area (>90%) | rapid decline (>30% over 3 generations) | very high |
| Human intrusions and disturbance | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| Natural system modifications | happening now | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Agricultural expansion and intensification | happening now | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Residential and commercial development | happening now | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Transportation and service corridors | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Biological resource use | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Pollution | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| No known threats | happening now | 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 |
| Whole area (>90%) covered by appropriate conservation designation | A management plan exists, but it is out of date or not comprehensive | Very little or no conservation action taking place | low |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1964 | Przekop | Rezerwat Przyrody (IV) | <1 |
| 1972 | L/êg Dêbowy | Nature Reserve (-) | <1 |
| 1973 | Łęg Dębowy koło Janowa Podlaskiego | Rezerwat Przyrody (IV) | <1 |
| 1978 | Dębniak | Rezerwat Przyrody (IV) | <1 |
| 1979 | Kaliniak | Rezerwat Przyrody (IV) | <1 |
| 1987 | Wydma Mołożewska | Rezerwat Przyrody (IV) | <1 |
| 1987 | Skarpa Mołożewska | Rezerwat Przyrody (IV) | <1 |
| 1987 | Wydma Moóo_ewska | Nature Reserve (-) | <1 |
| 1987 | Skarpa Moóo_ewska | Nature Reserve (-) | <1 |
| 1990 | Nadbuÿañski Obszar Chronionego Krajobrazu | Protected Landscape Area (-) | 24 |
| 1993 | Nadbużański Park Krajobrazowy | Park Krajobrazowy (V) | 45 |
| 1994 | Park Krajobrazowy Podlaski Przełom Bugu | Park Krajobrazowy (V) | 14 |
| 1994 | Podlaski Przóom Bugu | Landscape Park (-) | 20 |
| 1995 | Szwajcaria Podlaska | Rezerwat Przyrody (IV) | <1 |
| 1996 | Bojarski Grąd | Rezerwat Przyrody (IV) | <1 |
| 2000 | Kózki | Rezerwat Przyrody (IV) | <1 |
| 2002 | Mokry Jegiel | Rezerwat Przyrody (IV) | <1 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Grassland | 60 | Humid grasslands; Mesophile grasslands |
| Artificial/Terrestrial | 20 | |
| Forest | 10 | Alluvial and very wet forest |
| Wetlands (inland) | 7 | Standing freshwater; Rivers and streams; Water fringe vegetation; Fens, transition mires and springs |
| Other | 3 |
| Land use | % of IBA |
|---|---|
| agriculture | - |
| hunting | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lower Bug river valley (Poland). Downloaded from
https://datazone.birdlife.org/site/factsheet/lower-bug-river-valley-iba-poland on 24/12/2024.