Natural Heritage

The biodiversity that surrounds us is tremendously rich. With a repertoire of roughly 1700 species related to the flora of the Alps of Vaud, the inventory made by the biologists of Lausanne’s university never cease to grow at each field sample in the Swiss Alps. This network, evoking a mature dandelion, connects these species if they have been detected in the same geographical units by the researchers during their observations. The spherical fruit capitula, in white, represents species related to forests such as beeches, oaks, maples, firs, larches and their understory flora. Below in the graph, we can find, in black, many different plant species of open habitats, including the dandelion itself, or Taraxacum. The stalk is composed of orthopterans (crickets), lepidopterans (butterflies) and bumblebees, associated with these habitats, in different shades of green. Finally, the roots are made of soil fungi in yellow and soil bacterias in dark green, in the same habitats.









Data source

Ecospat @ UNIL


Thanks to Prof. Antoine Guisan and his teamfor opening their data.

Additional resources

The data used to create this work come from the research group of Professor Antoine Guisan, with the support of Dr. Olivier Broennimann, at the University of Lausanne. They correspond to 15 years of efforts to sample biodiversity in the Vaud Alps, a priority research area (, with more than 1000 sites visited, and supplemented by data from a cantonal forest inventory. These data are used to construct models of geographic distribution of species and ecosystems, and to derive spatial projections under different scenarios of climate change and land use. These projections will eventually allow us to evaluate the evolution of these mountain landscapes, the functioning of ecosystems, and the services they provide to humans.