Influence de l’Activité du Bétail sur la Régénération des Arbres en Pâturage
Projet
Type : PhD research (2003-2006)
Fund :
- MAVA (private funding)
- WSL – Walddynamik
Description :
Cattle play an important role in creating and maintaining the grassland-shrub-woodland mosaic structure in wood pastures. To explain the functioning of these highly biodiverse systems, it is important to understand how tree seedlings establish under grazed situations.
We hypothesize that the success of establishment of tree seedlings in wood pastures depends on factors such as resistance of the individual tree species, preference of herbivores, competitive ability of saplings with surrounding vegetation, facilitation by unpalatable plants and grazing intensity.
In the CATTREE project, we focus on browsing-environmental interactions influencing the early stages of tree development in grasslands.
Via field experiments we investigate seedling establishment and sapling survival of four tree species: Picea abies, Abies alba, Fagus sylvatica and Acer pseudoplatanus
Keywords :
grazing ecology, tree establishment, competition, facilitation, wood pastures, biodiversity, field experiments, ecosystem dynamics
Participants :
- PhD student : Charlotte Vandenberghe
- Supervisors : Dr. François Freléchoux, Prof. A. Buttler
Partnerships : 
- WSL, Lausanne
- ECOS, EPFL, Lausanne
- Agroscope Changins (RAC), Nyon
- University of Fribourg
Study site :
The Swiss Jura Mountains :
- La Petite ronde – Les Verrières
- La Frétaz – Bullet