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 (2004–2009) | 250–350 males | C1, C6 |
Spotted Crake Porzana porzana | LC | breeding (2001–2009) | 90–100 males | C6 |
Little Crake Zapornia parva | LC | breeding (2001–2009) | 35–37 males | C6 |
Common Little Bittern Ixobrychus minutus | LC | breeding (2004–2009) | 17 pairs | C6 |
Eurasian Curlew Numenius arquata | NT | passage (2004–2009) | 150 birds | C1 |
Black-tailed Godwit Limosa limosa | NT | breeding (2004–2009) | 260–270 pairs | C1 |
Black-tailed Godwit Limosa limosa | NT | passage (2002–2009) | 800 birds | C1 |
Short-eared Owl Asio flammeus | LC | passage (2004–2009) | 6 birds | C6 |
Western Marsh-harrier Circus aeruginosus | LC | breeding (2004–2009) | 63–68 pairs | C6 |
Syrian Woodpecker Dendrocopos syriacus | LC | breeding (2004–2009) | 24–27 pairs | C6 |
A4iii Species group - waterbirds | n/a | passage (2004–2009) | 44,000–52,000 birds | C4 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2010. The most recent assessment (2008) is shown below.
IBA conservation assessment | |||
---|---|---|---|
Year of assessment | State | Pressure | Response |
2008 | not assessed | very high | 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 |
Climate change and severe weather | happening now | whole of population/area (>90%) | moderate decline (10–30% over 3 generations) | very high |
Agricultural expansion and intensification | happening now | whole of population/area (>90%) | slow decline (1–10% over 3 generations) | high |
Biological resource use | happening now | most of population/area (50–90%) | slow decline (1–10% over 3 generations) | high |
Pollution | 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%) | no or slight decline (<1% over 3 generations) | low |
Human intrusions and disturbance | happening now | some of population/area (10–49%) | no or slight decline (<1% over 3 generations) | low |
Natural system modifications | 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 |
Residential and commercial development | happening now | few individuals/small area (<10%) | no or slight decline (<1% over 3 generations) | low |
Transportation and service corridors | likely in short term (<4 years) | few individuals/small area (<10%) | slow decline (1–10% 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 |
---|---|---|---|
1986 | Nadnidziański Park Krajobrazowy | Park Krajobrazowy (V) | 13 |
1995 | Umianowice | Ecological Area (-) | 2 |
Habitat | % of IBA | Habitat detail |
---|---|---|
Grassland | 60 | Steppes and dry calcareous grassland; Humid grasslands; Mesophile grasslands |
Wetlands (inland) | 30 | Standing freshwater; Rivers and streams; Water fringe vegetation; Fens, transition mires and springs |
Artificial/Terrestrial | 5 | Highly improved re-seeded landscapes; Arable land |
Forest | 5 | Native coniferous woodland; Alluvial and very wet forest |
Land use | % of IBA |
---|---|
agriculture | 70 |
not utilised | 30 |
hunting | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Nida Rivar Valley (Poland). Downloaded from
https://datazone.birdlife.org/site/factsheet/nida-rivar-valley-iba-poland on 25/12/2024.