• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

Year of most recent IBA criteria assessment: 2010

Populations of IBA trigger species

Species	Current IUCN Red List Category	Season	Year(s) of estimate	Population estimate	IBA Criteria Triggered
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
Ixobrychus minutus	NR	breeding	2004-2009	17 breeding pairs	C6
Eurasian Curlew Numenius arquata	NT	passage	2004-2009	150 individuals	C1
Black-tailed Godwit Limosa limosa	NT	breeding	2004-2009	260-270 breeding pairs	C1
Black-tailed Godwit Limosa limosa	NT	passage	2002-2009	800 individuals	C1
Short-eared Owl Asio flammeus	LC	passage	2004-2009	6 individuals	C6
Western Marsh-harrier Circus aeruginosus	LC	breeding	2004-2009	63-68 breeding pairs	C6
Syrian Woodpecker Dendrocopos syriacus	LC	breeding	2004-2009	24-27 breeding pairs	C6
A4iii Species group - waterbirds	n/a	passage	2004-2009	44,000-52,000 individuals	C4

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

Threats to the site (pressure)
Threat Level 1	Threat Level 2	Timing	Scope	Severity	Result
Agricultural expansion and intensification	annual & perennial non-timber crops - small-holder farming	happening now	whole area/population (>90%)	slow but significant deterioration	high
Agricultural expansion and intensification	marine and freshwater aquaculture - subsistence/artisinal aquaculture	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Agricultural expansion and intensification	wood and pulp plantations (includes afforestation) - small-holder plantations	likely in short term (within 4 years)	small area/few individuals (<10%)	no or imperceptible deterioration	low
Biological resource use	gathering terrestrial plants - unintentional effects (species being assessed is not the target)	likely in short term (within 4 years)	some of area/population (10-49%)	moderate to rapid deterioration	medium
Biological resource use	hunting & collecting terrestrial animals - intentional use (species being assessed is the target)	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high
Biological resource use	hunting & collecting terrestrial animals - persecution/control	happening now	majority/most of area/population (50-90%)	no or imperceptible deterioration	low
Biological resource use	logging & wood harvesting - unintentional effects: large scale	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Climate change and severe weather	drought	happening now	whole area/population (>90%)	moderate to rapid deterioration	very high
Climate change and severe weather	storms and floods	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high
Climate change and severe weather	temperature extremes	happening now	whole area/population (>90%)	slow but significant deterioration	high
Energy production and mining	oil and gas drilling	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low
Energy production and mining	renewable energy	likely in short term (within 4 years)	small area/few individuals (<10%)	no or imperceptible deterioration	low
Human intrusions and disturbance	recreational activities	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low
Human intrusions and disturbance	work and other activities	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Natural system modifications	dams & water management/use - dams (size unknown)	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Natural system modifications	fire & fire suppression - increase in fire frequency/intensity	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Natural system modifications	other ecosystem modifications	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
No known threats	no known threats	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Pollution	agricultural & forestry effluents - type unknown/unrecorded	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Pollution	air-borne pollutants - type unknown/unrecorded	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Pollution	domestic & urban waste water - type unknown/unrecorded	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Pollution	excess energy - noise pollution	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Pollution	garbage & solid waste	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low
Pollution	industrial & military effluents - type unknown/unrecorded	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Residential and commercial development	commercial and industrial development	happening now	some of area/population (10-49%)	very rapid to severe deterioration	high
Residential and commercial development	housing and urban areas	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Residential and commercial development	tourism and recreation areas	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Transportation and service corridors	flight paths	likely in short term (within 4 years)	small area/few individuals (<10%)	no or imperceptible deterioration	low
Transportation and service corridors	roads and railroads	likely in short term (within 4 years)	small area/few individuals (<10%)	slow but significant deterioration	low

Conservation actions taken at site (response)
Conservation Designation	Management Planning	Conservation Action	Result
Whole area of site (>90%) covered by appropriate conservation designation	No management planning has taken place	Some limited conservation initiatives are in place	low

For more information about IBA monitoring please click here

Protection status:

Protected Area	Designation	Area (ha)	Relationship with IBA	Overlap with IBA (ha)
Wzgórza Checinsko-Kieleckie	Site of Community Importance (Habitats Directive)	8,616	protected area is adjacent to site	0
Umianowice	Ecological Area	300	protected area contained by site	300
Ostoja Szaniecko-Solecka	Site of Community Importance (Habitats Directive)	8,073	protected area is adjacent to site	0
Ostoja Sobkowsko-Korytnicka	Site of Community Importance (Habitats Directive)	2,204	protected area overlaps with site	1,346
Ostoja Nidzianska	Site of Community Importance (Habitats Directive)	26,516	protected area overlaps with site	13,055
Nadnidzianski Park Krajobrazowy	Landscape Park	23,164	protected area overlaps with site	2,000
Dolina Nidy	Special Protection Area (Birds Directive)	1,101	protected area contains site	15,960

IUCN Habitat	Habitat detail	Extent (% of site)
Forest	Native coniferous woodland, Alluvial and very wet forest	-
Grassland	Steppes and dry calcareous grassland, Humid grasslands, Mesophile grasslands	-
Wetlands (inland)	Standing freshwater, Rivers and streams, Water fringe vegetation, Fens, transition mires and springs	-
Artificial/Terrestrial	Highly improved re-seeded landscapes, Arable land	-

For further information about the habitat classification please click here.

Land-use	Extent (% of site)
agriculture	-
not utilised	-
hunting	-

For further information about the land use classification please click here.

---

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Nida Rivar Valley. Downloaded from http://www.birdlife.org on 22/01/2020.