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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
Bean Goose Anser fabalis	LC	winter	2004-2009	25,500 individuals	C3
Bean Goose Anser fabalis	LC	passage	2004-2009	18,847 individuals	C3
Greater White-fronted Goose Anser albifrons	LC	passage	2004-2009	15,575 individuals	C3
Great Crested Grebe Podiceps cristatus	LC	passage	2004-2009	10,300 individuals	C3
Common Crane Grus grus	LC	passage	2001-2006	5,000 individuals	C2
Eurasian Curlew Numenius arquata	NT	breeding	2004-2009	2-10 breeding pairs	C1
Aquatic Warbler Acrocephalus paludicola	VU	breeding	2005	14 males	C1
A4iii Species group - waterbirds	n/a	passage	2004-2009	70,000 individuals	C4
A4iii Species group - waterbirds	n/a	winter	2004-2009	44,000 individuals	C4

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.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Residential and commercial development	happening now	majority/most of area/population (50-90%)	very rapid to severe deterioration	very high
Biological resource use	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Invasive and other problematic species and genes	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Pollution	happening now	whole area/population (>90%)	slow but significant deterioration	high
Energy production and mining	likely in short term (within 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
Transportation and service corridors	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Human intrusions and disturbance	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Natural system modifications	past (and unlikely to return) and no longer limiting	some of area/population (10-49%)	moderate to rapid deterioration	low
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
Whole area of site (>90%) covered by appropriate conservation designation	A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	Some limited conservation initiatives are in place	medium

Year	Protected Area	Designation	% overlap with IBA
1956	Trawiasta Buczyna im. Profesora Stefana Kownasa	Rezerwat Przyrody	<1
1957	Brodogóry	Rezerwat Przyrody	<1
1974	Stary Przylep	Rezerwat Przyrody	<1
2003	Dolina Płoni i Jezioro Miedwie	Site of Community Importance (Habitats Directive)	88
2007	Jezioro Miedwie i okolice	Special Protection Area (Birds Directive)	90

Habitat1	Habitat detail	% of IBA
Grassland	Humid grasslands	44
Wetlands (inland)	Standing freshwater, Rivers and streams, Fens, transition mires and springs	28
Artificial/Terrestrial		23
Forest		4
Other		1

1. IUCN Habitat classification.

Land use	% of IBA
water management	50
agriculture	30
fisheries/aquaculture	20
hunting	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Miedwie site (Poland). Downloaded from https://datazone.birdlife.org/site/factsheet/miedwie-site-iba-poland on 22/11/2024.