NFI knowledge about the Swiss forest

An information service about the Swiss National Forest Inventory by the Swiss Federal Research Institute WSL.

Formica rufa

Forest ants

Where do the five most common species of red wood ants (Formica rufa group) live in Switzerland? New maps provide information.



Do you have a specific question related to NFI results? Use our query system to find your answer in one of our 94,860 tables and maps from the surveys 1983–2017.


Forest photos

Take a look into the forest. The NFI puts more than 40,000 photos online, with which you can explore the forests of Switzerland - comfortably from home.