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 |
|---|---|---|---|---|
| Aquatic Warbler Acrocephalus paludicola | VU | breeding (2004–2009) | 22–37 males | C1, 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 (2010) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2010 | good | very high | low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | population | medium | |
| State (condition of the trigger species' populations) | |||||
|---|---|---|---|---|---|
| Species | Actual vs Reference (units) | % remaining | Result | ||
| Aquatic Warbler Acrocephalus paludicola | 35 / 36 (males) | 98 | good | ||
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Energy production and mining | happening now | whole of population/area (>90%) | rapid decline (>30% over 3 generations) | very high |
| Invasive and other problematic species and genes | happening now | whole of population/area (>90%) | moderate decline (10–30% over 3 generations) | very high |
| Natural system modifications | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| Agricultural expansion and intensification | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| Biological resource use | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| 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 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Wetlands (inland) | 30 | Standing freshwater; Rivers and streams; Fens, transition mires and springs |
| Artificial/Terrestrial | 28 | Arable land |
| Grassland | 22 | Humid grasslands |
| Forest | 19 | |
| Other | 1 |
| Land use | % of IBA |
|---|---|
| agriculture | 80 |
| hunting | 10 |
| not utilised | 10 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Rozwarowo Marshes (Poland). Downloaded from
https://datazone.birdlife.org/site/factsheet/rozwarowo-marshes-iba-poland on 26/12/2024.