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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
Goosander Mergus merganser	LC	resident (1996)	65–75 pairs	B1i
Great Crested Grebe Podiceps cristatus	LC	winter (1998)	2,000–7,000 birds	A4i, 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 (2014) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Human intrusions and disturbance	happe­ning now	most of popul­ation/area (50–90%)	slow decline (1–10% over 3 gener­ations)	high
Natural system modifications	likely in long term (>4 years)	most of popul­ation/area (50–90%)	moderate decline (10–30% over 3 gener­ations)	medium
Residential and commercial development	likely in short term (<4 years)	whole of popul­ation/area (>90%)	no or slight decline (<1% over 3 gener­ations)	low
Transportation and service corridors	likely in long term (>4 years)	some of popul­ation/area (10–49%)	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90%) covered by appropriate conservation designation	A management plan exists, but it is out of date or not compre­hensive	Substantive conservation measures are being implemented, but these are not compre­hensive and are limited by resources and capacity	medium

Year	Protected Area	Designation (management category)	% coverage of IBA
2001	Rive droite du Petit-Lac (GE, VD)	Bundesinventar der Wasser- und Zugvogelreservate von internationaler und nationaler Bedeutung (IV)	9
2001	Rive gauche du Petit-Lac (GE)	Bundesinventar der Wasser- und Zugvogelreservate von internationaler und nationaler Bedeutung (IV)	17
2001	Pointe à la Bise	Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung (IV)	<1
2001	Mies / Versoix	Federal Inventory of Reserves for Waterbirds and Migratory Birds of International and National Imp. (IV)	9

Habitat	% of IBA	Habitat detail
Wetlands (inland)	97	Standing freshwater
Artificial/Terrestrial	3	Urban parks and gardens; Other urban and industrial areas

Land use	% of IBA
tourism/recreation	100
urban/industrial/transport	3
fisheries/aquaculture	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Geneva: Versoix and Hermance to Geneva (Switzerland). Downloaded from https://datazone.birdlife.org/site/factsheet/lake-geneva:-versoix-and-hermance-to-geneva-iba-switzerland on 05/12/2024.