• Biodiversity Monitoring Switzerland

Organization and participating partners

On behalf of the Federal Office for the Environment, more than one hundred biologists work in the field gathering biodiversity data. Their field work is coordinated by a specialized company commissioned by the FOEN.

Project direction

BDM is run by the Federal Office for the Environment’s biodiversity and landscape division, with project management being handled by Jérôme Frei and Jean-Michel Gardaz.

Project coordination

After a public invitation to tender in 2020, the five-year contract for project coordination and data collection was awarded to Hintermann & Weber AG in Reinach, Switzerland. 

Field and laboratory works

Over 60 subcontracts governing individual tasks were concluded with specialized companies or individuals:

Vascular plants

Topos Ecological Counseling has been commissioned to survey vascular plants as well as gather moss and mollusk samples. Approximately a dozen of its employees are involved in BDM field work.


Directly coordinated by Hintermann & Weber AG, roughly 40 experts from all over Switzerland conduct BDM butterfly surveys.

Aquatic insects

Aquatic insects are surveyed by roughly 20 fieldworkers, with various experts in charge of identification. Their activities are organized by Aquabug, a specialized company based in Neuchâtel.


The FUB Research Group for Environmental Monitoring in Rapperswil is responsible for identifying mosses in a laboratory setting.


Mollusks are sorted and identified by Mr. Jörg Rüetschi in Bern and the Agentur Umwelt office for applied animal ecology in Höxter, Germany.

Breeding birds

Breeding birds are surveyed by the Swiss Ornithological Institute in Sempach in tune with its “Monitoring Common Breeding Birds” program.

Hotspot special edition

The Hotspot special edition on 20 years of BDM shows who works behind the data and highlights current developments in biodiversity.

Methodology report

A report from 2014 summarises the concept behind this programme of the Federal Office for the Environment FOEN in a straightforward and comprehensive way.