Ner River Valley (Poland) - BirdLife IBA factsheet

PL079

Ner River Valley

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
Greater White-fronted Goose Anser albifrons	LC	passage	2006-2009	15,000 individuals	C3
Corncrake Crex crex	LC	breeding	2006-2009	41-67 males	C1
Eurasian Curlew Numenius arquata	NT	breeding	2006-2009	9-10 breeding pairs	C1
Black-tailed Godwit Limosa limosa	NT	breeding	2006-2009	23-39 breeding pairs	C1
Aquatic Warbler Acrocephalus paludicola	VU	breeding	2003-2008	1-14 males	C1
A4iii Species group - waterbirds	n/a	passage	2006-2009	20,000 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	near favourable	not assessed	not assessed
Whole site assessed?	State assessed by	Accuracy of information
no	population	poor

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Greater White-fronted Goose Anser albifrons	15,000	13,000	individuals	87	near 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	Dolina Bzury	Protected Landscape Area	36
1988	Pradoliny Warszawsko-Berlińskiej	Obszar Chronionego Krajobrazu	64
2001	Pradolina Bzury-Neru	Site of Community Importance (Habitats Directive)	85
2007	Pradolina Warszawsko-Berlińska	Special Protection Area (Birds Directive)	92

Habitats

Habitat¹	Habitat detail	% of IBA
Grassland	Humid grasslands	48
Wetlands (inland)	Standing freshwater, Rivers and streams, Raised bogs, Water fringe vegetation	43
Artificial/Terrestrial		5
Forest	Mixed woodland, Alluvial and very wet forest	4

1. IUCN Habitat classification.

Land use

Land use	% of IBA
agriculture	90
forestry	5
not utilised	5
hunting	-

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