Forêt du Lapé
Swiss stone pine in the Canton of Fribourg

New publication on Pinus cembra (Pinaceae)

Y. Fragnière, V. Sonnenwyl and B. Clément published new publication in the journal New Forests. The title of the paper: "Large scale afforestation failure with Pinus cembra in Western Prealps." The publication shows results of the Master Thesis of V. Sonennwyl carried out at the University of Fribourg and supervised by Y. Fragnière. The research was done in collaboration with the University of Bern and the Swiss Federal Institute for Forest, Snow and Landscape (WSL, Birmensdorf, Switzerland).

Launch of the Project Ptilostemon

The main goal of the project is to ensure the long-term conservation of Ptilostemon greuteri (Asteraceae), a critically endangered and endemic woody species of Sicily. This phylogenetically isolated taxon is one of rare examples of woodiness among Mediterranean Asteraceae. It consists of only few very small subpopulations occurring on north-facing cliffs and ledges, on Mt. Inici (western Sicily). As the species has been discovered only recently (2006), many aspects of its biology, biogeography and conservation needs are poorly understood.

New Book and Exhibition

The green heart of our planet: A journey through the world of trees

This book has been prepared as a catalog of an exhibition at the Forest Culture Center in Gołuchów (Poland), which opened its doors on 4th of June 2021. The main purpose of the book and of the exhibition is to show the beauty, uniqueness and importance of trees to our planet and ourselves.

Ulmus minor
Elm family reloaded!

Global biogeographical and ecological synthesis of Ulmaceae

Yann Fragnière (team of the Botanic Garden of the University of Fribourg) published a new paper entitled “Biogeographic overview of Ulmaceae: diversity, distribution, climatic and ecological preferences” in the journal Plants.

Negative effect of browsing

Exclusion of browsing and conservation of Zelkova abelicea

Laurence Fazan (Zelkova-team of the University of Fribourg) published 2021 a new paper entitled “Free behind bars: Effects of browsing exclusion on the growth and regeneration of Zelkova abelicea” in the journal Forest Ecology and Management.


Our research and conservation activities

  1. Basic and applied research on relict, rare and/or threatened woody species (biogeography, conservation biology, phylogeny, phylogeography, population genetics, population structure, dendrochronology, etc.).
  2. Conservation actions (in situ and ex situ conservation), action plans and conservation status assessments.
  3. Capacity building (teaching, internships, exchange of students and young scientists, etc.).
  4. Public awareness and outreach (exhibitions, books, workshops, etc.).
  5. Iconographic collections (scientific photography, scientific drawings, etc.)

Conservation and research

Conservation and research

Conservation biogeography of Pterocarya & Juglandaceae

Relict and threatened woody species of Azerbaijan

Relict trees of China, Taiwan, Vietnam, South Korea and Japan

Local conservation & research projects, exhibitions, discoveries.