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The site was identified as important 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 List1	Season	Year(s)	Size	IBA criteria
Corncrake Crex crex	LC	breeding	2007	50-60 males	C1

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2010) may differ.

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.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Boreal Owl Aegolius funereus	20	25	breeding pairs	100	favourable
Eurasian Eagle-owl Bubo bubo	5	5	breeding pairs	100	not assessed

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	-	moderate (70-90%)	near favourable
Wetlands (inland)	-	moderate (70-90%)	near favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Natural system modifications	happening now	majority/most of area/population (50-90%)	very rapid to severe deterioration	very high
Invasive and other problematic species and genes	happening now	whole area/population (>90%)	moderate to rapid deterioration	very high
Agricultural expansion and intensification	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Residential and commercial development	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Transportation and service corridors	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Human intrusions and disturbance	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Energy production and mining	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high
Biological resource use	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Pollution	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
No known threats	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Most of site (50-90%) covered (including the most critical parts for important bird species)	No management plan exists but the management planning process has begun	Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity	low

Year	Protected Area	Designation	% overlap with IBA
1981	Park Krajobrazowy Dolina Słupi	Park Krajobrazowy	99
1981	Grodzisko Borzytuchom	Rezerwat Przyrody	<1
1982	Jeziora Sitna	Rezerwat Przyrody	<1
1982	Gniazda orła bielika	Rezerwat Przyrody	<1
1982	Gołębia Góra	Rezerwat Przyrody	<1
2004	Dolina Słupi	Special Protection Area (Birds Directive)	100
2005	Jeziora Lobeliowe koło Soszycy	Site of Community Importance (Habitats Directive)	<1
2007	Dolina Huczka	Rezerwat Przyrody	<1
2008	Skotawskie Łąki	Rezerwat Przyrody	<1
2008	Mechowiska Czaple	Rezerwat Przyrody	<1
2008	Źródliskowe Torfowisko	Rezerwat Przyrody	<1
2012	Dolina Słupi	Site of Community Importance (Habitats Directive)	11

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved deciduous woodland, Native coniferous woodland, Mixed woodland, Alluvial and very wet forest	72
Artificial/Terrestrial	Highly improved re-seeded landscapes, Arable land, Ruderal land	14
Grassland	Steppes and dry calcareous grassland, Humid grasslands, Mesophile grasslands	8
Wetlands (inland)	Standing freshwater, Rivers and streams, Raised bogs, Water fringe vegetation	6

1. IUCN Habitat classification.

Land use	% of IBA
forestry	72
agriculture	21
water management	6
hunting	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Slupia River Valley (Poland). Downloaded from https://datazone.birdlife.org/site/factsheet/slupia-river-valley-iba-poland on 23/11/2024.