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 (2006–2009) | 40–70 males | C1 |
| Common Little Bittern Ixobrychus minutus | LC | breeding (2006–2009) | 5–15 pairs | C6 |
| Mediterranean Gull Larus melanocephalus | LC | breeding (2007–2009) | 10–15 pairs | C6 |
| Little Tern Sternula albifrons | LC | breeding (2007–2009) | 420–540 pairs | C6 |
| Common Tern Sterna hirundo | LC | breeding (2007–2009) | 1,400–1,700 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 (2019) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2019 | not assessed | very high | not assessed |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | unset | - | |
| 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 |
| Transportation and service corridors | likely in short term (<4 years) | whole of population/area (>90%) | rapid decline (>30% over 3 generations) | very high |
| Climate change and severe weather | happening now | whole of population/area (>90%) | slow decline (1–10% over 3 generations) | high |
| Human intrusions and disturbance | happening now | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Pollution | happening now | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Agricultural expansion and intensification | happening now | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | high |
| Natural system modifications | happening now | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | high |
| Energy production and mining | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Residential and commercial development | likely in long term (>4 years) | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Biological resource use | happening now | few individuals/small area (<10%) | no or slight decline (<1% over 3 generations) | low |
| 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 |
| Most of area (50–90%) covered (including the most critical parts for important bird species) | A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species | Substantive conservation measures are being implemented, but these are not comprehensive and are limited by resources and capacity | not assessed |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| - | Unknown | Protected Landscape Area (-) | 100 |
| 1981 | Jabłonna | Rezerwat Przyrody (IV) | <1 |
| 1981 | Ruska Kêpa | Nature Reserve (-) | <1 |
| 1994 | Kępa Antonińska | Rezerwat Przyrody (IV) | 2 |
| 1994 | Kępa Wykowska | Rezerwat Przyrody (IV) | 1 |
| 1994 | Wyspy Zakrzewskie | Rezerwat Przyrody (IV) | 1 |
| 1994 | Wyspy Białobrzeskie | Rezerwat Przyrody (IV) | 1 |
| 1994 | Kępa Rakowska | Rezerwat Przyrody (IV) | <1 |
| 1994 | Ławice Troszyńskie | Rezerwat Przyrody (IV) | <1 |
| 1994 | Wyspy Biaóobrzeskie | Nature Reserve (-) | <1 |
| 1994 | Kêpa Wykowska | Nature Reserve (-) | 1 |
| 1998 | Ławice Kiełpińskie | Rezerwat Przyrody (IV) | 3 |
| 1998 | Kępy Kazuńskie | Rezerwat Przyrody (IV) | 2 |
| 1998 | Wyspy Świderskie | Rezerwat Przyrody (IV) | 2 |
| 1998 | Zakole Zakroczymskie | Rezerwat Przyrody (IV) | 2 |
| 1998 | Łachy Brzeskie | Rezerwat Przyrody (IV) | 2 |
| 1998 | Wyspy Zawadowskie | Rezerwat Przyrody (IV) | 2 |
| 1998 | Wikliny Wiślane | Rezerwat Przyrody (IV) | 1 |
| 1998 | Wikliny Wis/lane | Nature Reserve (-) | 1 |
| 1998 | Wyspy S/widerskie | Nature Reserve (-) | 2 |
| 1998 | L/awice Kiel/pin/skie | Nature Reserve (-) | 3 |
| 1998 | Ke/py Kazun/skie | Nature Reserve (-) | 2 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Wetlands (inland) | 45 | Standing freshwater; Rivers and streams |
| Artificial/Terrestrial | 21 | Arable land; Ruderal land |
| Forest | 13 | Alluvial and very wet forest |
| Grassland | 12 | Humid grasslands; Mesophile grasslands |
| Other | 9 |
| Land use | % of IBA |
|---|---|
| fisheries/aquaculture | 30 |
| tourism/recreation | 30 |
| other | 20 |
| agriculture | 15 |
| nature conservation and research | 5 |
| urban/industrial/transport | - |
| hunting | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Middle Vistula River Valley (Poland). Downloaded from
https://datazone.birdlife.org/site/factsheet/middle-vistula-river-valley-iba-poland on 23/12/2024.