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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
Gadwall Mareca strepera	LC	winter	1998	300-700 individuals	B1i

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 (2009) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Gadwall Mareca strepera	300	241	individuals	81	near favourable

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
Human intrusions and disturbance	happening now	majority/most of area/population (50-90%)	no or imperceptible deterioration	low
Invasive and other problematic species and genes	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Biological resource use	happening now	some of area/population (10-49%)	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	No management plan exists but the management planning process has begun	The conservation measures needed for the site are being comprehensively and effectively implemented	medium

Year	Protected Area	Designation	% overlap with IBA
1990	Klingnauer Stausee	Ramsar Site, Wetland of International Importance	99
1991	Klingnauerstausee (AG)	Bundesinventar der Wasser- und Zugvogelreservate von internationaler und nationaler Bedeutung	100
1992	Auenreste Klingnauer Stausee	Bundesinventar der Auengebiete von nationaler Bedeutung	25
1994	Gippinger Grien	Bundesinventar der Flachmoore von nationaler Bedeutung	2
1994	Verlandung im Klingnauer Stausee	Bundesinventar der Flachmoore von nationaler Bedeutung	3
1996	Aarelandschaft bei Klingnau	Landscapes and Natural Monuments of National Importance	99
2001	Gippinger Grien	Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung	10
2001	Giriz	Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung	4
2010	Unteri Au	Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung	<1

The Local Conservation Group(s) listed below are working to conserve this IBA.

Name	Year formed
BirdLife Aargau	1983
Naturschutzverein aare-rhein	2008

For more information on BirdLife's work with Local Conservation Groups, please click here.

Habitat1	Habitat detail	% of IBA
Wetlands (inland)	Standing freshwater, Rivers and streams, Water fringe vegetation	39
Grassland	Humid grasslands, Mesophile grasslands	32
Forest	Broadleaved deciduous woodland, Alluvial and very wet forest	11
Artificial/Terrestrial	Urban parks and gardens, Other urban and industrial areas	9
Rocky areas (eg. inland cliffs, mountain peaks)	Scree & boulders	4

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	33
urban/industrial/transport	9
fisheries/aquaculture	-
forestry	-
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Klingnau reservoir (Switzerland). Downloaded from https://datazone.birdlife.org/site/factsheet/klingnau-reservoir-iba-switzerland on 23/11/2024.