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• Text account
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• Reference and further resources

The site was identified as important in 2000 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
Common Pochard Aythya ferina	VU	breeding	1997	146 breeding pairs	B3
Red-necked Grebe Podiceps grisegena	LC	breeding	1997	93 breeding pairs	B1i, C3
Spotted Crake Porzana porzana	LC	breeding	1997	26 breeding pairs	B3, C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2000) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2000. The most recent assessment (2010) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Common Pochard Aythya ferina	145	34	breeding pairs	24	very unfavourable
Red-necked Grebe Podiceps grisegena	90	38	breeding pairs	43	unfavourable
Spotted Crake Porzana porzana	25	0	breeding pairs	0	very unfavourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Natural system modifications	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Pollution	happening now	majority/most of area/population (50-90%)	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site (50-90%) covered (including the most critical parts for important bird species)	A management plan exists but it is out of date or not comprehensive	Some limited conservation initiatives are in place	low

Year	Protected Area	Designation	% overlap with IBA
1987	TANKAN LUONNONSUOJELUALUE	Yksityinen luonnonsuojelualue	1
1993	KIRKKOLAHDEN LUONNONSUOJELUALUE	Yksityinen luonnonsuojelualue	<1
1995	Koskeljärvi	Site of Community Importance (Habitats Directive)	71
1998	Koskeljärvi	Special Protection Area (Birds Directive)	72
2007	Koskeljärven luonnonsuojelualue	Yksityinen luonnonsuojelualue	23
2014	Vahalan luonnonsuojelualue	Yksityinen luonnonsuojelualue	<1

Habitat1	Habitat detail	% of IBA
Wetlands (inland)	Standing freshwater, Raised bogs	90
Forest		10

1. IUCN Habitat classification.

Land use	% of IBA
not utilised	100

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Koskeljärvi, Vaaljärvi and Pitkäjärvi lakes (Finland). Downloaded from https://datazone.birdlife.org/site/factsheet/koskeljärvi-vaaljärvi-and-pitkäjärvi-lakes-iba-finland on 23/11/2024.