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The site was identified as internationally important for bird conservation 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 List	Season (year/s of estimate)	Size	IBA criteria
Gadwall Mareca strepera	LC	winter (1998)	300–700 birds	B1i

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	Actual vs Reference (units)	% remaining	Result
Gadwall Mareca strepera	241 / 300 (birds)	81	moderate

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Natural system modifications	happe­ning now	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium
Human intrusions and disturbance	happe­ning now	most of popul­ation/area (50–90%)	no or slight decline (<1% over 3 gener­ations)	low
Biological resource use	happe­ning now	some of popul­ation/area (10–49%)	no or slight decline (<1% over 3 gener­ations)	low
Invasive and other problematic species and genes	happe­ning now	few indivi­duals/small area (<10%)	no or slight decline (<1% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Whole area (>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 (management category)	% coverage of IBA
1991	Klingnauerstausee (AG)	Bundesinventar der Wasser- und Zugvogelreservate von internationaler und nationaler Bedeutung (IV)	100
1992	Auenreste Klingnauer Stausee	Bundesinventar der Auengebiete von nationaler Bedeutung (IV)	25
1994	Gippinger Grien	Bundesinventar der Flachmoore von nationaler Bedeutung (IV)	2
1994	Verlandung im Klingnauer Stausee	Bundesinventar der Flachmoore von nationaler Bedeutung (IV)	3
1996	Aarelandschaft bei Klingnau	Landscapes and Natural Monuments of National Importance (V)	99
2001	Gippinger Grien	Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung (IV)	10
2001	Giriz	Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung (IV)	4
2010	Unteri Au	Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung (IV)	<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 visit Spotlight on local empowerment.

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

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 26/12/2024.