Jeziorsko reservoir (Poland) - BirdLife IBA factsheet

PL078

Jeziorsko reservoir

Current view: Data table and detailed info

IBA Justification

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	2004-2008	13,000 individuals	C3
Mallard Anas platyrhynchos	LC	winter	2004-2008	28,300 individuals	C3
Common Teal Anas crecca	LC	winter	2004-2008	11,720 individuals	C3
Great White Egret Ardea alba	LC	breeding	2008	6 breeding pairs	C6
Black-tailed Godwit Limosa limosa	NT	breeding	2008	10 breeding pairs	C1
Little Gull Hydrocoloeus minutus	LC	passage	1995-2003	2,650 individuals	C2
Whiskered Tern Chlidonias hybrida	LC	breeding	2008	146 breeding pairs	C6
A4iii Species group - waterbirds	n/a	passage	2004-2008	77,500 individuals	C4

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

IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2010. The most recent assessment (2011) is shown below.

IBA conservation assessment
Year of assessment	State	Pressure	Response
2011	favourable	not assessed	not assessed
Whole site assessed?	State assessed by	Accuracy of information
yes	population	good

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Bean Goose Anser fabalis	1,910	12,700	individuals	100	favourable
Whiskered Tern Chlidonias hybrida	30	60	breeding pairs	100	favourable

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Not assessed	Not assessed	Not assessed	not assessed

IBA Protection

Year	Protected Area	Designation	% overlap with IBA
1986	Uniejowski	Obszar Chronionego Krajobrazu	21
1998	Nadwarciański	Obszar Chronionego Krajobrazu	75
1998	Jeziorsko	Rezerwat Przyrody	28
2000	Zbiornik Jeziorsko	Special Protection Area (Birds Directive)	73

Habitats

Habitat¹	Habitat detail	% of IBA
Wetlands (inland)	Standing freshwater, Raised bogs, Water fringe vegetation	95
Grassland	Mesophile grasslands	5

1. IUCN Habitat classification.

Land use

Land use	% of IBA
water management	80
agriculture	20

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